bluuebunny/crossref_metadata_2025 huggingface dataset:
Broadband and high-gain traveling-wave optical parametric amplification in a gallium phosphide photonic integrated circuit
Authors: Riemensberger Johann , Kuznetsov Nikolai , Nardi Alberto , Davydova Alisa , Seidler Paul , Kippenberg Tobias J.
Published: September 2024

We demonstrate continuous-wave parametric amplifier with a 140 nm gain bandwidth spanning the optical S,C, and L-bands and up to 25 dB off-chip net-gain in a dispersion engineered gallium phosphide-on-insulator (GaPOI) waveguide with up to 160 mW output power.
Unidirectional image magnification and demagnification using pyramid diffractive optical networks
Authors: Bai Bijie , Yang Xilin , Gan Tianyi , Li Jingxi , Mengu Deniz , Jarrahi Mona , Ozcan Aydogan
Published: September 2024

We introduce a pyramid-structured deep diffractive optical network (P-D2NN) design that performs unidirectional image magnification and demagnification using reduced degrees of freedom. Experimental validation at terahertz spectrum demonstrates the efficacy of this design strategy.
Exciton–Polaritons Generated from Strong Coupling between CdSe Nanoplatelets and a Fabry–Pérot Cavity
Authors: Morshed Ovishek , Amin Mitesh , Collison Rob , Cogan Nicole M. B. , Koessler Eric R. , Tumiel Trevor M. , Awan Farwa , Girten William , Mathis Lele , Odom Teri W. , Huo Pengfei , Vamivakas Nick , Krauss Todd D.
Published: September 2024

Exciton–polaritons generated from strong coupling between CdSe nanoplatelets with confined photons in a Fabry–Pérot cavity are studied via angle-resolved spectroscopy. Their room-temperature existence and interesting photophysics hold promise for manipulating chemical reactions.
Stimulated Raman Scattering Microscopy with a Widely Tunable Fiber Optical Parametric Oscillator and Ti:sapphire Laser
Authors: Takahashi Shun , Oguchi Kenichi , Kamei Kento , Mizuguchi Takaha , Spratt Spencer J. , Ozeki Yasuyuki
Published: September 2024

We present a widely tunable fiber optical parametric oscillator with a tuning range of 1470 cm−1. By synchronizing it with a Ti:sapphire laser, we succeed in stimulated Raman scattering imaging across the broad spectral range.
Utilizing K-means clustering on Hyperspectral DO-SRS images of the Mouse Hippocampus
Authors: Villazon Jorge , Shi Lingyan
Published: September 2024

Stimulated Raman spectroscopy with deuterium oxide (DO-SRS) allows for metabolic imaging of biomolecule synthesis. Through clustering analysis on the Raman C-H stretching and C-D bands, we can distinguish mouse hippocampal regions based on metabolic activity.
Ultra-sensitive Biomolecule Detection using a Metamaterial Absorber Inducing Strong Coupling
Authors: Kim Mingyun , Kang Do Hyun , Lee Jongwon , Jung Joo-Yun
Published: September 2024

We present a mid-infrared immunoassay biosensor using surface-enhanced infrared absorption spectroscopy. The biosensor leverages a coupled harmonic oscillation model for analysis. With an aptamer-based immunoassay, it attains a limit of detection as 267.4 pM.
Harmonic mode locked InP/LiNbO3 microcomb laser
Authors: Gao Zhengdong , Ling Jingwei , Xue Shixin , Hu Qili , Zhang Kaibo , Javid Usman , Lopez-Rios Raymond , Staffa Jeremy , Lin Qiang
Published: September 2024

We demonstrate a chip-scale InP/LiNbO3 mode-locked microcomb laser. This device demonstrates programmable mode-locking capabilities at various higher harmonics of the laser cavity’s free spectral range.
Aluminum Nitride Ring Resonator-Coupled Spin Defects in Hexagonal Boron Nitride for Integrated Quantum Photonics
Authors: Roberts Henry C. , Waseem Aadil , Wicker Scott A. , Abudayyeh Hamza , Kim Dong Seob , Liu Zhida , Randolph Steven , Li Xiaoqin , Li Xiuling
Published: September 2024

We report a new approach to generate waveguide-coupled emission from deterministically implanted boron vacancy spin defects in hBN using single-crystal AlN-on-sapphire ring resonators. This facilitates the eventual development of hBN-based integrated quantum technologies.
Hybrid integrated GaSb/Si3N4 DBR lasers with >30 mW output power and >50 nm wavelength coverage
Authors: Zhu Chunfan , Geng Zhengqi , Wei Jincheng , Yang Chengao , Niu Zhichuan , Wang Ruijun , Yu Siyuan
Published: September 2024

We demonstrate hybrid integrated lasers based on a GaSb-based gain chip coupled to a silicon nitride photonic integrated circuit containing Bragg grating posts. The lasers exhibit output power >30 mW and >50 nm wavelength coverage.
Neodymium-Doped Mamyshev Oscillator at 920 nm
Authors: Boulanger Vincent , Olivier Michel , Trépanier François , Piché Michel
Published: September 2024

We present an all-fiber linear Mamyshev oscillator enabled by fiber Bragg gratings and a W-type neodymium-doped fiber. The self-starting oscillator yields 6-nJ pulses compressible to 80-fs at 920 nm with a 20 MHz repetition rate.
Generation of harmonic mode-locking in an all-PM Tm-doped fiber laser via linear-cavity interferometric NPE
Authors: Peng Siwei , Li Chuangkai , Liu Xuanyi , Fu H. Y. , Li Qian
Published: September 2024

We demonstrate an all-polarization-maintaining Tm-doped fiber laser mode-locked by linear-cavity interferometric NPE, achieving robust 3rd-order harmonic mode-locking at 1934 nm with a pulse duration of ~720 fs and a repetition rate of 36 MHz.
Real-time observation of transient single pulse during the mode-locked build-up dynamics
Authors: Stoliarov D. , Kudelin I. , Koviarov A. , Rafailov E.
Published: September 2024

This study explores pulse dynamics in all - polarization-maintaining (PM) dispersion-managed, mode-locked fiber laser using the Time-Stretch Dispersive Fourier Transform (TS-DFT), focusing on single dissipative soliton generation across time and fre-quency domains.
Diffusion-Doped Lithium Tantalate Waveguides for Watt-level Nonlinear Frequency Conversion in the Near UV
Authors: Suntsov Sergiy , Kretschmann Sarah , Hasse Kore , Kip Detlef
Published: September 2024

Highly photorefractive optical damage resistant ridge waveguides for near UV and short-wavelength visible ranges have been fabricated using high-temperature diffusion doping with different metal ions and vapor transport equilibration method of commercially available congruently melting LiTaO3 crystals.
613% efficiency of second harmonic generation in a lithium niobate microresonator
Authors: Wang Zhi-Yan , Wu Xiao , Hao Zhenzhong , Cao Qi-Tao , Bo Fang , Xiao Yun-Feng
Published: September 2024

We demonstrate the second harmonic generation process with a record efficiency of 61.3%, benefiting from the generalized critical coupling condition. Besides, a dichromatic pump-probe method is proposed for real-time phase-matching monitoring.
Enhanced On-Chip Green Light Generation by Nonlinear Up-Conversion Using Fabry-Pérot Microcavities
Authors: Islam Sumon Md Saiful , Sankar Shrivatch , Faruque Imad I. , Dwivedi Sarvagya , Arafin Shamsul
Published: September 2024

Photonic integrated circuits for green light generation through up-conversion of on-chip near-infrared lasers are designed using SiN-LN hybrid waveguides. A Fabry-Pérot microcavity-based technique is employed to enhance the nonlinear conversion efficiency.
Magnetically Controlled Multi-resonance Modes in Near-field Coupled Metasurfaces
Authors: Acharyya Nityananda , Mallick Soumyajyoti , Rane Shreeya , Kahaly Mousumi Upadhyay , Roy Chowdhury Dibakar
Published: September 2024

We have demonstrated active control (magnetically) over multi-resonances in near field coupled metasurfaces. Our proposed design allows the external magnetic field to impose simultaneous dynamic control over dipolar and higher order modes.
A High-Efficiency Terahertz Sensor Based on Surface Lattice Resonance Metasurface for Biochemical Detection
Authors: Sun Hongshun , Li Liye , Ma Lijun , Cao Yunhao , Chen Yusa , Wu Wengang
Published: September 2024

We propose a novel terahertz sensor based on surface lattice resonance metasurface with high sensitivity (502.8GHz/RIU), and simple structure design. In addition, the resonance frequency and sensitivity can be controlled regularly by adjusting the period.
Large Optical Tunability of Terahertz Third Harmonic Generation in Metamaterial
Authors: Wang Chen , Tan Yong , Wen Yongzheng , Zhao Shiqiang , Yu Kaixin , Sun Jingbo , Zhou Ji
Published: September 2024

We experimentally demonstrated large optical tunability of terahertz third harmonic generation in metamaterial comprising aluminum split ring resonators and silicon film, achieving modulation depth up to 2.1×104% in picosecond time.
Generation of 1.8-mJ, 2.5-μm, Sub-3-Cycle Laser Pulses via Hollow-Core Fiber Pulse Compression
Authors: Song Huanyu , Britton Mat , Larsen Kirk , Kaufman Brian , Gebhardt Martin , Brahms Christian , Travers John , Neuhaus Marcel , Lantigua Christopher , Kincaid Chelsea , Wu Yi , Chini Michael , Chang Zenghu , Robinson Joseph , Cunningham Eric , Forbes Ruaridh
Published: September 2024

We report on nonlinear compression of 2.5-μm, sub-100 fs laser pulses using a noble-gas-filled hollow core fiber. MgF2 wedges are used to compress the pulse and perform dispersion-scan. Sub-3-cycle, 1.8-mJ pulses are obtained after compression.
Quasi-continuous air waveguiding
Authors: Goffin A. , Tartaro A. , Milchberg H.M.
Published: September 2024

Using high-repetition-rate structured multi-filamentation of femtosecond laser pulses, we generate a continuously operating air waveguide. We demonstrate undisrupted guiding of a CW probe beam with significantly improved performance.
30fs UV laser pulse generation using a multi-pass cell
Authors: Hariton Victor , Jiang Yujiao , Schönberg Arthur , Seidel Marcus , Wieland Marek , Drescher Markus , Prandolini Mark , Hartl Ingmar , Heyl Christoph M.
Published: September 2024

We present a simple method for generating microjoule-level UV laser pulses with ultrashort duration using an air-based multi-pass cell. Through spectral broadening and compression, we achieve a 7-fold reduction in pulse duration while maintaining high output beam quality.
Hybrid Pulse-Burst-Pumped NOPCPA for the Generation of High Energy Long-Wave Infrared Pulses
Authors: Jutas Rokas , Roman Joris , Astrauskas Ignas , Imani Aref , Carpeggiani Paolo , Polynkin Pavel , Kaksis Edgar , Floery Tobias , Kolenda Jonas , Bartulevičius Tadas , Michailovas Kirilas , Michailovas Andrejus , Baltuška Andrius , Pugžlys Audrius
Published: September 2024

Pulse-bursts from Nd:YAG amplifier are converted into angularly separated multicolor pulses that are used to non-collinearly pump LWIR ZGP OPCPA. LWIR pulses are amplified to 80 µJ energy, which is potentially scalable to >10 mJ.
Enhanced Ultraviolet Generation in Gas-Filled Antiresonant Hollow-core Fiber via Post-Processing
Authors: Xiong Daiqi , Wang Yuxi , Bai Ruhai , Wang Zhixun , Yong Alexander Si Kai , Liang Kaicheng , Chang Wonkeun
Published: September 2024

We significantly enhance the dispersive wave generation-driven ultraviolet conversion efficiency from 3.4% to 11% in a post-processed gas-filled antiresonant hollow-core fiber by thinning the cladding-tube wall thickness from 470 nm to 115 nm through wet-etching.
Control of cascaded four-wave mixing via dynamic dispersion
Authors: Thapa Shree R. , Drake James , Hudson Darren D.
Published: September 2024

We demonstrate control of cascaded four-wave mixing by programmable dispersion tuning. With modification of only the group delay dispersion (no higher-order terms), we are able to achieve a 250% increase in the spectral bandwidth.
Tunable liquid-crystal source of photon pairs
Authors: Sultanov Vitaliy , Kavčič Aljaž , Kokkinakis Manolis , Humar Matjaž , Chekhova Maria V.
Published: September 2024

We demonstrate a liquid-crystal broadband source of entangled photons, whose flux and polarization are tunable through the electric field or molecular twist. This opens a path to a new generation of tunable quantum light sources.
High-gain Wavelength-specific Opposite Photoresponses in a PMMA-modified Graphene Photodetector
Authors: Wu Jinhua , Sun Hao , Zhang Ruiling , Yao Shipeng , Hou Zhangyu , Ning Cun-Zheng
Published: September 2024

We demonstrated wavelength-specific opposite photoresponses on a PMMA-modified graphene photodetector with response wavelengths ranging from 405 to 1650 nm. A record-high normalized gain for the negative response of 1.88×10-3 m2V-1 was achieved.
L- to U-Band Wavelength Conversion Based on Intermodal Four-Wave Mixing on-Chip
Authors: Vitali Valerio , Bottrill Kyle R. H. , Bucio Thalía Domínguez , Liu Hao , González José Manuel Luque , Jurado-Romero Francisco , Ortega-Moñux Alejandro , Churchill Glenn , Gates James C. , Hillier James A. , Kalfagiannis Nikolaos , Melati Daniele , Schmid Jens H. , Cristiani Ilaria , Cheben Pavel , Wangümert-Pérez J. Gonzalo , Molina-Fernández Íñigo , Gardes Frederic , Lacava Cosimo , Petropoulos Periklis
Published: September 2024

We report here a broadband Si-rich silicon nitride wavelength converter based on intermodal four-wave mixing with on-chip mode multiplexing and de-multiplexing functionalities. L- to U-band wavelength conversion of 40-Gbps QPSK optical signals is demonstrated.
Application of a High Power Fabry-Perot QW Laser Diode on Multi-Channel Coherent Optical System
Authors: Ghosh Shalmoli , Raisa Sharmila , O’Sullivan Maurice , Laperle Charles , Hui Rongqing
Published: September 2024

We investigate the property of a Fabry-Perot quantum-well laser diode which emits multiple spectral lines with a total power exceeding 120mW. We show its application as an optical source in a multi-channel coherent optical system.
Fully-integrated silicon wavelength converter with on-chip idler filtering
Authors: Liu Hao , Bottrill Kyle R.H. , Vitali Valerio , Demirtzioglou Iosif , Skenderas Martin , Adamu Nura , Lacava Cosimo , Yan Xingzhao , Banakar Mehdi , Tran Ying , Ebert Martin , Le Besque James , LittleJohns Callum , Thomson David J. , Petropoulos Periklis
Published: September 2024

We demonstrate a fully-integrated silicon wavelength converter utilizing four-wave mixing, featuring tunable idler filtering with >59 dB out-of-band signal suppression. Conversion of a 32-Gbaud 16-QAM signal with around 2 dB power penalty is demonstrated.
Optical fiber communication system based on an ultrahigh-Q packaged fused silica microrod
Authors: Hu Jun , Pan Tingyang , Li Chang , Duan Bing , Wen Huashun , Yang Daquan
Published: September 2024

We generate a low-threshold Kerr optical frequency comb in the 2.2 × 109 quality factor packaged microrod resonator and implement coherent optical communication with transmission rates of 500 Gb/s and bit error ratios of 10–7.
Spectral Convolution Technique for Highest-Bandwidth Ultra-Flat Comb Generation Using Dual-Stage Modulator
Authors: Harada Shun , Ishijima Tatsuki , Sakamoto Takahide
Published: September 2024

We demonstrate spectral convolution technique for ultra-flat comb generation using dual-stage electro-optic modulators. Both modulators broaden comb’s spectrum, maximizing spectral width with excellent spectral flatness. Using narrow-linewidth comb lines, high-speed QPSK modulation/demodulation is also demonstrated.
Single Frequency Low Quantum Defect Fiber Laser at 980nm
Authors: AlYahyaei Khawlah , Zhu Xiushan , Li Lizhu , Zong Jie , Li Maohe , Wang Junqin , Meyer Jason , Chavez-Pirson Arturo , Norwood Robert A. , Peyghambarian Nasser
Published: September 2024

An ultra-low quantum defect (< 0.6%) linearly polarized single frequency fiber laser was demonstrated. To mitigate thermal effects, pump wavelength optimization has been performed in order to study the effect of quantum defects on laser performance.
C+L band tunable ultra-narrow linewidth fiber laser
Authors: Dang Laiyang , Su Zhiyao , Huang Dongmei , Li Yujia , Wai P. K. A.
Published: September 2024

We propose a C+L band tunable ultra-narrow linewidth fiber laser using a sub-ring and saturable absorber. The measured optical signal-to-noise ratio reaches 80.6 dB and the linewidth is several hundred Hertz in each wavelength channel.
A 6 mm2 Wideband Modulation-free Laser Stabilization Chip in a Commercial SiN Process
Authors: Idjadi Mohamad Hossein , Ashtiani Farshid , Kim Kwangwoong
Published: September 2024

We demonstrate a wideband integrated modulation-free laser stabilization system using a commercial low-loss SiN process. The photonic chip achieves more than 40 dB frequency noise suppression while occupying a 6 mm2 area.
Arbitrary engineering of resonant frequencies in lithium niobate photonic crystal ring resonators
Authors: Zhang Ke , Chen Yikun , Sun Wenzhao , Chen Zhaoxi , Feng Hanke , Wang Cheng
Published: September 2024

We realize arbitrary engineering of resonant frequencies by mode splitting in both isotropic z-cut LN and anisotropic x-cut LN photonic crystal ring resonators. Spectral engineering in x-cut LN is realized by a gradient design that precisely compensates for variations in both refractive index and perturbation strength.
Second-harmonic generation with a 440,000%/W conversion efficiency in a lithium niobate microcavity without periodic poling
Authors: Wu Xiao , Hao Zhenzhong , Zhang Li , Jia Di , Ma Rui , Bo Fang , Gao Feng , Zhang Guoquan , Xu Jingjun
Published: September 2024

We designed and fabricated racetrack microcavities on reverse-poling double-layer X-cut thin-film lithium niobate, based on which second-harmonic generation with a normalized conversion efficiency of 440,000%/W, comparable to periodically poled lithium niobate devices, was realized.
Deterministic Phase-Matching of Micro-Transfer-Printed Periodically-Poled Lithium Niobate Waveguides
Authors: Vandekerckhove Tom , Vanackere Tom , De Witte Jasper , Roelkens Günther , Clemmen Stéphane , Kuyken Bart
Published: September 2024

State-of-the-art periodically-poled lithium niobate waveguides struggle with extreme fabrication sensitivity, resulting in unpredictable phase-matching wavelengths. We developed a micro-transfer-printed periodically-poled lithium niobate waveguide that enables deterministic phase-matching at a predefined wavelength through optical feedback.
Highly-Selective Etching of Micro-Transfer-Printed Thin-Film Lithium Niobate for Low Coupling Losses
Authors: Vandekerckhove Tom , Van Assche Ruben , Tanghe Ivo , Niels Margot , Poelman Stijn , Vanackere Tom , Billet Maximilien , Clemmen Stéphane , Kuyken Bart
Published: September 2024

Efficient low-loss coupling to micro-transfer-printed lithium niobate remains a challenge. We developed a highly-selective lithium niobate etch that enables selective etching of tapered coupling structures into the lithium niobate thin film after micro-transfer printing.
Purely Quadratic Cavity Solitons in a Nanophotonic Parametric Oscillator
Authors: Englebert Nicolas , Gray Robert M. , Sekine Ryoto , Zacharias Thomas , Ledezma Luis , Zhou Selina , Arabi Carlos Mas , Gorza Simon-Pierre , Leo François , Marandi Alireza
Published: September 2024

We experimentally observe signatures of 475-fs-long sech-squared-shaped solitons in a ps-pumped phase-mismatched parametric oscillator in the normal dispersion regime, purely due to cascaded quadratic nonlinearities. The results are in good agreement with our theoretical predictions.
Hybrid AM/FM Mode-Locking of OPOs
Authors: Hamerly Ryan , Laksono Evan , Jankowski Marc , Ng Edwin , Flemens Noah , Suh Myoung-Gyun , Mabuchi Hideo
Published: September 2024

We investigate a novel AM/FM hybrid mode-locking mechanism for OPO frequency combs. Numerical simulations reveal stable, efficient (>30%), broadband (>100nm), tunable, turnkey comb formation in singly-resonant OPOs in close agreement with an analytic FMCW model.
Noncritical, Narrowband, Intracavity Pumped CdSe OPO
Authors: Wang Li , Chen Weidong , Ni Youbao , Wang Zhenyou , Pasiskevicius Valdas , Divliansky Ivan B. , Moelster Kjell M. , Mhibik Oussama , Wu Haixin , Jiang Haihe , Zukauskas Andrius , Glebov Leonid B. , Petrov Valentin
Published: September 2024

We report on a noncritically phase-matched cascade CdSe optical parametric oscillator with an output energy of 0.54 mJ at 100 Hz, temperature tuning within 9274-9314 nm, and narrow spectrum achieved by a Volume Bragg Grating.
Deep Learning for Modeling Dynamic Gain and Nonlinearities in Ultrafast Fiber Amplifiers
Authors: Chen Siyun , Wang Dan , Du Qiang , Logantha Mahek , Kong Fanting , Cooper Lauren , Galvanauskas Almantas , Liu Andy , Ji Qing , van Tilborg Jeroen , Schroeder Carl , Esarey Eric , Wilcox Russell , Zhou Tong , Geddes Cameron
Published: September 2024

We introduce a deep-learning method for modeling dynamic gain and nonlinearities in ultrafast fiber a mplifiers, overcoming limitations of physics-based models. Trained and tested with experiments, the algorithm can predict accurately, adaptable to varying amplifier conditions.
Narrow-Ridge Red-Wavelength InP Quantum Dot Lasers Grown Heteroepitaxially Within Patterned Si-Based PIC
Authors: Heidelberger Christopher , Plant Jason J. , Wang Yiteng , Kharas Dave , Lee Minjoo L. , Sorace-Agaskar Cheryl , Juodawlkis Paul W.
Published: September 2024

We demonstrate CW narrow-ridge visible-wavelength (752 nm) lasers grown within a patterned Si-based photonic integrated circuit exhibiting output powers as high as 10 mW/facet and wall-plug efficiencies up to 1.7%. © 2023 Massachusetts Institute of Technology
Integrated Photonic Platform for Low Noise Microwave Generation
Authors: Kudelin Igor , Groman William , Ji Qing-Xin , Guo Joel , Kelleher Megan , Lee Dahyeon , Nakamura Takuma , McLemore Charles A. , Shirmohammadi Pedram , Hanifi Samin , Cheng Haotian , Jin Naijun , Wu Lue , Halladay Samuel , Luo Yizhi , Dai Zhaowei , Jin Warren , Bai Junwu , Liu Yifan , Zhang Wei , Xiang Chao , Chang Lin , Iltchenko Vladimir , Miller Owen , Matsko Andrey , Bowers Steven M. , Rakich Peter T. , Campbell Joe , Bowers John , Vahala Kerry , Quinlan Franklyn , Diddams Scott A.
Published: September 2024

Using integrated photonic chip components for ’2-point’ optical frequency division, we generate a 20 GHz microwave signal with phase noise of –135 dBc/Hz at 10 kHz offset.
Low-threshold single ternary GaAsSb nanowire lasers emitting at silicon transparent wavelengths
Authors: Doganlar C. , Schmiedeke P. , Jeong H. W. , Döblinger M. , Finley J. J. , Koblmüller G.
Published: September 2024

We demonstrate lasing from single ternary GaAsSb nanowire (NW) lasers with low threshold under optical pumping at silicon transparent wavelengths (~1.1-1.2 µm). These breakthroughs are enabled by combining high-quality, phase-pure GaAsSb NWs with extended cavity lengths and effective surface passivation using lattice-matched InAlGaAs layers. Lasing at thresholds of ~ 3 µJ/cm2 and up to 250 K is verified.
Broadband Infrared Imaging via Silicon Metasurfaces
Authors: Zheng Ze , Sanderson Gabriel , Ying Cuifeng , Koutsogeorgis Demosthenes , Liu Zixi , Oulton Rupert , Huang Lujun , Yousefi Arman , Smirnova Daria , Miroshnichenko Andrey E. , Neshev Dragomir N. , O'Neill Mary , Rahmani Mohsen , Xu Lei
Published: September 2024

We demonstrate an innovative platform with nonlinear metasurfaces to convert images from broadband mid-infrared (2200-4000 nm) to visible via four-wave mixing. We minimise high-power signal requirements by tailoring the resonant metasurface at the pump wavelength.
Nonlinear Metamaterial for Efficient Terahertz Second-Harmonic Generation from Anharmonic Oscillation of 2DEG
Authors: Yu Kaixin , Wang Chen , Wen Yongzheng , Tan Yong , Zhao Shiqiang , Sun Jingbo , Zhou Ji
Published: September 2024

We experimentally demonstrate an efficient terahertz second harmonic generation by a metamaterial-based artificial nonlinearity. By driving carriers in the two-dimensional electron gas, the large second-order nonlinear susceptibility of 136.1 nm/V is achieved.
The All-Optical Stern-Gerlach Effect in Space and in Time
Authors: Arie Ady
Published: September 2024

Lightwaves can be split into two beams or two pulses, each comprising a frequency-bin superposition, in the presence of a nonlinear coupling gradient, representing the nonlinear optics analog of the celebrated Stern-Gerlach effect for atoms.
Anisotropic Temperature and Polarization Dependence of Third Harmonic Generation in van der Waals Layered Material AgScP2S6
Authors: Noor Mohamed Yaseen , Siebenaller Ryan , Susner Micheal , Chowdhury Enam
Published: September 2024

We investigate temperature and polarization dependent third harmonic generation in few microns thick AgScP2S6 crystal using 77fs 1030nm driver laser pulses. The THG efficiency is orders of magnitude higher than that of many 2D materials.
Impact of AES-CTR Mode Modified QAM Symbol Block Cipher on Nonlinear Fiber-Optic Channels
Authors: Amano Hodaka , Shimada Keiji , Suketomo Reika , Matsumoto Ryosuke , Kodama Takahiro
Published: September 2024

In a 7-ch WDM transmission experiment spanning 2240 km with fiber nonlinearity effects, we employed AES-CTR mode corrected symbol block cipher for dual-polarized-QAM, showcasing penalty-free performance irrespective of encryption presence and rendering eavesdropper decryption challenging.
906-Gb/s, 100-km Physical-layer Key Distribution Based on Unclonable Random Fiber Grating and Channel Reciprocity
Authors: Qiu Taihang , Xiao Xiangpeng , Lu Qiang , Yan Zhijun , Deng Lei , Yang Qi , Dai Xiaoxiao , Liu Deming , Cheng Mengfan
Published: September 2024

We experimentally demonstrate a physical-layer key distribution scheme based on unclonable random fiber gratings and optical link channel reciprocity. The distribution distance is 100km and the distribution rate reaches 9.06 Gb/s.
On-Chip Backward Stimulated Brillouin Scattering in Lithium Niobate Waveguides
Authors: Rodrigues Caique C. , Schilder Nick J. , Zurita Roberto O. , Magalhães Letícia S. , Shams-Ansari Amirhassan , Alegre Thiago P. M. , Lončar Marko , Wiederhecker Gustavo S.
Published: September 2024

We present the first experimental demonstration of backward stimulated Brillouin scattering in lithium niobate on insulator waveguides. We observed both intra- and intermodal scattering, showcasing gains up to G
B
= 10 m–1W–1.
An Optically Broadband Piezo-Optomechanical Magnetometer
Authors: Castillo Zachary , Smith Brandon , Will-Cole Alex , Dong Mark , Bussmann Konrad , Finkel Peter , Eichenfield Matt
Published: September 2024

We demonstrate optically broadband piezo-optomechanical magnetometry, integrating a Mach-Zehnder interferometer with magnetostrictive material for magnetic responsivity and piezoelectric material for actuation/control, with broadband sensitivity ~1 nt/√hz up to ~500 kHz and ~10 pT/√Hz at mechanical resonance.
Integrated Microelectromechanical-System Optical Probes for Diagnosing Phase Errors of Programmable Photonic Integrated Circuits
Authors: Trinh Thuy , Nguyen The Anh , Ko Boxian , Lee Kuo-Wei , Lee Ming Chang
Published: September 2024

We present using microelectromechanical-system optical probes in combination with an image analysis method to dynamically monitor the waveguide power of Mach-Zehnder interferometers for phase error diagnosis in programmable photonic integrated circuits.
Plasmonic Enhancement of Surface Acoustic Wave – Photonic Integrated Devices in Silicon-on-Insulator
Authors: Dokhanian L. , Bag S. Kumar , Hen M. , Zadok A.
Published: September 2024

Thermoelastic stimulation of surface acoustic waves in standard silicon photonic circuits is enhanced through the absorption of pump light in surface plasmon resonant unit cells. Transmission losses are reduced by 20 dB.
Stimulated Brillouin scattering in a 3 µm thick non-suspended silicon platform
Authors: Ye Kaixuan , Marin Yisbel E. , Cherchi Matteo , Aalto Timo , Marpaung David
Published: September 2024

We report the first stimulated Brillouin scattering signal from the 3 µm thick low-loss silicon-on-insulator waveguide platform. The Brillouin gain coefficient is 2.5 m–1W–1 and 1.9 m–1W–1 at 37.6 GHz for the rib and strip waveguides, respectively.
Ultra-high damage threshold optics for high energy and high average power lasers
Authors: Michine Yurina , Yoneda Hitoki
Published: September 2024

By using new gas optics, high laser flux can be controlled with small UV laser energy. The damage threshold for 355nm is kept high so that 10kJ-3ω laser will be focused by only 3x3cm optics.
Quantitative evaluation of the impact of individual optics in the PW laser stretcher on the contrast pedestal
Authors: Tang Y. , Egan D. , Chekhlov O. , Hawkes S. , Hernandez-Gomez C. , Collier J. , Rajeev P. P.
Published: September 2024

We have demonstrated the contrast pedestal enhancement by deploying a high quality transmission grating in the Gemini laser stretcher. We also report a method to quantitatively evaluate the impact of individual large optics in the stretcher on the contrast pedestal of high power Ti:Sa laser pulses by precisely quantitative characterization of the surface quality of large optics. The simulated results are in a good agreement with the experimental measurement.
Exceptional-Surface-Tailored Robust Microlaser
Authors: Liao Kun , Zhong Yangguang , Du Zhuochen , Liu Guodong , Li Chentong , Wu Xianxin , Deng Chunhua , Lu Cuicui , Wang Xingyuan , Chan Che Ting , Song Qinghai , Wang Shufeng , Liu Xinfeng , Hu Xiaoyong , Gong Qihuang
Published: September 2024

We report a scalable strategy to realize a robust on-chip integrated microlaser source with simultaneous in-plane emission, linewidth compression, and pump energy utilization improvement based on different orders of exceptional surfaces (ESs).
Sub-kHz-Linewidth and Wide-Tuning External Cavity Laser Based on Low-Loss Lithium Niobate Photonics
Authors: Ge Renyou , Chen Bigeng , Yu Shaoliang , Luo Yannong , Gao Shengqian
Published: September 2024

We demonstrate a sub-kHz-linewidth laser on LNOI platform utilizing long delay and narrowband filtering. Lasing with high side mode suppression ratio above 60dB, wide tuning range of 80nm, and narrow linewidth of 270Hz are achieved.
Robust Low-loss Topological Photonic Crystal Waveguides
Authors: Rahim Masudur , Jeong Heijun , Xiao Yahui , Gu Tingyi
Published: September 2024

We observe ultra-low propagation and coupling loss (<2dB) in topological photonic crystal waveguide with integrated metalens coupling.
Heterogeneous Integration of Solid-state Quantum Systems with Silicon Foundry Microelectronics
Authors: Weng Hao-Cheng , Komrakova Sofiia , Matthews Jonathan C. F. , Rarity John G. , Balram Krishna C. , Smith Joe A.
Published: September 2024

Site-defined electron spin control is demonstrated by heterogeneous integrating NV centres in nanodiamond with silicon foundry microelectronics. Rabi oscillations indicates fifty times lower power consumption compared to addressing with an external microwave antenna.
An on-chip platform for multi-degree-of-freedom control of two-dimensional quantum and nonlinear materials
Authors: Tang Haoning , Wang Yiting , Ni Xueqi , Watanabe Kenji , Taniguchi Takashi , Fan Shanhui , Mazur Eric , Yacoby Amir , Cao Yuan
Published: September 2024

We introduce the first on-chip, microelectromechanical system for the in situ tuning of twisted 2D materials, enabling tunable interfacial properties, synthetic topological singularities, and adjustable-polarization light sources for advanced quantum material manipulation in 2D-3D devices.
Soliton Vortex Comb Generation in an AlGaAs Microresonator for Self-Torque Pulse Synthesis
Authors: Liu Y. , Chen B. , Zhou Y. , Ye C. , Cao Q. , Huang P. , Kim C. , Zheng Y. , Oxenløwe L. K. , Yvind K. , Li J. , Li J. , Zhang Y. , Dong C. , Fu S. , Zhan Q. , Wang X. , Liu J. , Pu M.
Published: September 2024

We demonstrate bright soliton generation at room temperature within a grating-dressed AlGaAs-on-insulator microresonator and the simultaneous emission of phase-locked vortices, enabling the synthesis of self-torque pulses from the soliton vortex comb.
Current injection laser oscillation of 1.55 μm InAs quantum dot vertical-cavity surface-emitting lasers
Authors: Shiomi Michinori , Kishimoto Haruki , Watanabe Tomomasa , Tanaka Masayuki , Kasahara Daiji , Nakajima Hiroshi , Arai Ryoji , Inaba Yuta , Yamaguchi Yudai , Kanitani Yuya , Kudo Yoshihiro , Futagawa Noriyuki , Yokozeki Mikihiro , Akahane Kouichi , Yamamoto Naokatsu
Published: September 2024

We have successfully demonstrated, for the first time, current injection laser oscillation in a 1.55 μm VCSEL using InAs quantum dot active layers grown on an InP(311)B substrate.
Radiation-resistant Bismuth-doped Germanosilicate Fiber Amplifier in the E+S Band
Authors: Zhai Ziwei , Halder Arindam , Negut Daniel , Sahu Jayanta K.
Published: September 2024

We report a radiation-resistant Bi-doped germanosilicate fiber amplifier with a 35dB gain at 1440nm after 2.5kGy -irradiation, for a -23dBm input signal. The NF, in-band OSNR, and gain coefficient are 6dB, 26dB, and 0.075dB/mW, respectively.
Towards wavelength-accurate quasi-phasematched frequency conversion in thin-film lithium niobate
Authors: Xin C. J. , Lu Shengyuan , Yang Jiayu , Shams-Ansari Amirhassan , Achuthan Nicholas , Sinclair Neil , Lončar Marko
Published: September 2024

We report progress on a process flow for fabricating wavelength-accurate quasi-phasematched frequency conversion devices in thin-film lithium niobate. Of 156 sampled devices, ~48% are phasematched within ±5 nm of a target second-harmonic generation process.
Experimental Demonstration of Directly Detecting the Output of a Tunable 2-Symbol 10-GBaud QPSK Optical Correlator Using Optical Biasing and Nonlinear Wave Mixing
Authors: Alhaddad Abdulrahman , Minoofar Amir , Ko Wing , Zhou Huibin , Karapetyan Narek , Ramakrishnan Muralekrishnan , Duan Yuxiang , Jiang Zile , Su Xinzhou , Wang Yingning , Zeng Ruoyu , Song Hao , Almaiman Ahmed , Habif Jonathan L. , Tur Moshe , Willner Alan E.
Published: September 2024

We experimentally demonstrate direct detection of a 2-symbol 5/10-Gbaud QPSK optical correlator output using nonlinear wave mixing and optical biasing. We capture the output using a photodiode and apply power thresholding to find multiple patterns.
Matrix-Matrix Multiplication Through Hyperspectral Compute-in-Memory
Authors: Park Byoung Jun , Latifpour Mostafa Honari , Yamamoto Yoshihisa , Suh Myoung-Gyun
Published: September 2024

We propose a hyperspectral compute-in-memory architecture using optical frequency combs and programmable optical memories. By fully utilizing frequency, space, and time dimensions, this approach demonstrates energy-efficient and highly-scalable op-tical Matrix-Matrix Multiplication, potentially exceeding PetaOPS-level performance.
Cavity Continuum
Authors: Cheng Fan , Shuvayev Vladimir , Douvidzon Mark , Deych Lev , Carmon Tal
Published: September 2024

We demonstrate large arrays of coupled whispering gallery resonators formed by droplets. Employing fluorescent mapping, we measure the spatial and spectral distribution of light intensity across the modes within this cavity ensemble.
Generation of watt-class FM signals with suppressed AM from PCSELs for coherent free-space optical communications
Authors: Inoue Takuya , Morita Ryohei , Nakano Shuei , Ishimura Shota , Nishimura Kosuke , Takahashi Hidenori , Tsuritani Takehiro , De Zoysa Menaka , Ishizaki Kenji , Suzuki Masatoshi , Noda Susumu
Published: September 2024

We demonstrate frequency modulation (FM) of watt-class photonic-crystal surface-emitting lasers (PCSELs) toward long-distance coherent free-space optical communications. We also demonstrate two-section PCSELs that can further enhance FM signals while suppressing amplitude modulation (AM).
Kilowatt-class high-peak-power pulsed operation of large-area photonic-crystal surface-emitting lasers
Authors: Yoshida Masahiro , Katsuno Shumpei , De Zoysa Menaka , Inoue Takuya , Noda Susumu
Published: September 2024

We demonstrate kilowatt-class high-peak-power operation of a 3-mm-diameter PCSEL. Both a 1-kW peak power and a 1-GWcm-2sr-1 brightness are realized. Laser color marking of metal is demonstrated by using such high-peak-power, high-brightness pulsed PCSELs.
Investigation of Intensity Noise in an Interband Cascade Laser Epitaxially Grown on Silicon and Designed for High-speed Applications
Authors: Kim H. , Didier P. , Zaminga S. , Huang H. , Díaz-Thomas D. A. , Baranov A. N. , Rodriguez J. B. , Tournié E. , Knötig H. , Schwarz B. , Cerutti L. , Spitz O. , Grillot F.
Published: September 2024

The high-speed parameters of an interband cascade laser grown on silicon are analyzed through the prism of relative intensity noise. The evolution of the relaxation frequency allows deriving a modulation bandwidth in the GHz range.
Erbium-Doped Fiber Amplification of 28 OAM Modes
Authors: Greenberg Aaron P. , Kristensen Poul , Mitrovic Miranda , Ramachandran Siddharth
Published: September 2024

Exploiting the regime of topological confinement that has enabled scaling mode counts in passive fibers, we demonstrate the first active version of such fibers yielding an EDFA with a record high uncoupled mode count (28).
Low noise microwave generation for quantum information systems via cryogenic extended-InGaAs photodiodes
Authors: Nakamura Takuma , Lee Dahyeon , Horng Jason , Teufel John D. , Quinlan Franklyn
Published: September 2024

We demonstrate low-noise photonic microwave generation derived from 1550 nm fs-pulses via cryogenic extended-InGaAs photodiode. The phase noise is 18 dB below the shot-noise limited amplitude noise, and >20 dB below that of modulated-CW illumination.
Performing Balanced Homodyne Detection with Superconducting Nanowire-Single Photon Detectors
Authors: Protte Maximilian , Schapeler Timon , Sperling Jan , Bartley Tim J.
Published: September 2024

We present a continuous-wave homodyne experiment with SNSPDs. Utilizing the low noise of SNSPDs, we achieve a SNC of 46 dB. From the joint-click statistics, we characterize a weak coherent state in terms of its continuous variables.
Maximizing photon-number resolution from an SNSPD
Authors: Lamberty Niklas , Schapeler Timon , Hummel Thomas , Schlue Fabian , Stefszky Michael , Brecht Benjamin , Silberhorn Christine , Bartley Tim J.
Published: September 2024

We present a principal component analysis of the electrical output of a commercial SNSPD, finding a photon-number resolution up to four photons. Further we identify features of interest when determining photon number.
Full-Stokes polarimetric imaging LiDAR using multi-mode-fiber-coupled fractal SNSPDs
Authors: Meng Yun , Zou Kai , Feng Yifan , Hao Zifan , Li Jing , Xiao Yuxi , Descamps Thomas , Iovan Adrian , Zwiller Val , Hu Xiaolong
Published: September 2024

We demonstrate full-Stokes polarimetric imaging LiDAR using four multi-mode-fiber-coupled fractal SNSPDs. An outdoor target 384 m away is successfully recognized with pixel dwell time of 1 ms.
Breaking Speed Barriers for Scanning LiDAR Through High-Order Dispersion
Authors: Zang Zihan , Hao Yi , Han Yaqi , Zhu Qingyang , Fu H. Y.
Published: September 2024

This paper presents a novel method using high-order dispersive devices for faster scanning LiDAR, achieving up to 2000 fps and 1.8 MHz scanning rates, significantly improving speed and resolution.
Cavity-enhanced Narrowband Spectral Filters in Rare-earth Ion-doped Thin-film Lithium Niobate
Authors: Zhao Yuqi , Renaud Dylan , Farfurnik Demitry , Loňar Marko , Sinclair Neil , Waks Edo
Published: September 2024

We demonstrate cavity-enhanced narrow bandpass filtering based on rare-earth-ion-doped thin-film lithium niobate by spectral hole burning in a critically-coupled resonance mode. Furthermore, we show that bandstop filtering can also be realized utilizing an under-couped cavity.
Integrated Preparation of Photonic Spin-Orbit Qudits
Authors: Zhao Haoqi , Zhang Yichi , Gao Zihe , Yim Jieun , Wu Shuang , Litchinitser Natalia M. , Ge Li , Feng Liang
Published: September 2024

Preparing and manipulating N-dimensional flying qudits as well as subsequently establishing their entanglement are still challenging tasks. Here, using an integrated approach, we explore the synergy from two degrees of freedom of light, spatial mode and polarization, to generate, encode, and manipulate flying photon qudits in a four-dimensional Hilbert space with high quantum fidelity, intrinsically enabling enhanced noise resilience and higher quantum data rates.
Surface acoustic wave Brillouin scattering in thin-film lithium niobate waveguides
Authors: Ye Kaixuan , Feng Hanke , Klaver Yvan , Keloth Akshay , Mishra Akhileshwar , Wang Cheng , Marpaung David
Published: September 2024

We observed the first-ever Brillouin scattering in thin-film lithium niobate (TFLN) waveguides. The z-cut TFLN waveguide, at 20° rotation angle, achieves a remarkable 84.9 m
−
1W
−
1 Brillouin gain coefficient, facilitated by 8.06 GHz surface acoustic waves.
Selective linewidth control in a micro-resonator with a resonant interferometric coupler
Authors: Pagano Paula L. , Borghi Massimo , Moroni Federica , Viola Alice , Edke Parimal , Menotti Matteo , Liscidini Marco , Bajoni Daniele , Galli Matteo
Published: September 2024

We present a silicon nitride micro-resonator in which we can selectively control the linewidth of a single resonance using a resonant interferometric coupler.
High Efficiency and Optically Transparent 2D-MoS2 Heaters for Silicon Photonics
Authors: Oz Dor , Suleymanov Nathan , Minkovich Boris , Kostianovskii Vladislav , Gantz Liron , Polyushkin Dmitry , Mueller Thomas , Goykhman Ilya
Published: September 2024

We experimentally demonstrate the first 1L-MoS2 microheater integrated with a silicon MRR, showing the best-reported power efficiency of ~7.5 mW/π with no significant penalty on insertion loss when placed close to the resonator (~30 nm).
Fabry-Perot Bragg Grating Cavity Based Singly-Resonant Four-Wave Mixing in the AlGaAs-on-Insulator Platform
Authors: Ye Chaochao , Liu Yang , Lu Xinda , Kim Chanju , Yvind Kresten , Pu Minhao
Published: September 2024

We demonstrate a singly-resonant four-wave mixing process using an AlGaAs-on-insulator Fabry-Perot Bragg grating cavity and achieve up to 16.3 dB conversion efficiency enhancement compared to a waveguide configuration with the same device length.
Modelocked Thin-Disk Laser Oscillator With 475 W of Average Output Power
Authors: Seidel Moritz , Lang Lukas , Phillips Christopher R. , Keller Ursula
Published: September 2024

We present an ultrafast thin-disk laser oscillator providing a record power of 475 W with 86-µJ, 808-fs pulses at a repetition rate of 5.50 MHz. This is enabled by a six-pass cavity and sapphire-bonded SESAMs.
Second-Harmonic Generation via All-Optical Poling in Linearly Uncoupled Silicon Nitride Microresonators
Authors: Clementi Marco , Zatti Luca , Zhou Ji , Liscidini Marco , Brès Camille-Sophie
Published: September 2024

We present a novel device consisting of two microring resonators coupled by the second-order nonlinear interaction. By independently controlling the microresonators’ linear properties, we engineer efficient second-harmonic generation through photo-induced nonlinearity in silicon nitride.
Dual comb generation in triple normal dispersion coupled microresonators using avoided mode crossing
Authors: Wu Wei , Huang Dongmei , Wai P. K. A.
Published: September 2024

Repetition-rate-synchronized dual-combs are generated in triple coupled microresonators operating in the normal dispersion by exploiting avoided mode crossing, opening up new possibilities for dual-comb generation and integrated applications.
40-Gbps Direct Modulation of Electrically Driven 1D Photonic-Crystal Nanolaser on SiO2/Si
Authors: Tsurugaya Takuma , Takeda Koji , Fujii Takuro , Segawa Toru , Matsuo Shinji
Published: September 2024

We demonstrate 40-Gbps, 16.6-fJ/bit direct modulation of a one-dimensional photonic-crystal (1D-PhC) nanolaser on SiO2/Si with 180-μA bias current. Very strong optical confinement in the laterally-current-injected 1D-PhC nanocavity is a key for the high-speed, high-modulation-efficiency operation.
Terahertz squeezed light and self-pulsing in semiconductor lasers with nonlinear loss
Authors: Pontula Sahil , Sloan Jamison , Rivera Nicholas , Soljačić Marin
Published: September 2024

We show how the combination of dispersive outcoupling and Kerr nonlinearity in semiconductor lasers creates regimes of self-pulsing and intensity-squeezed states of light from optical to terahertz wavelengths.
Enhancement of Physical Layer Security in FSO Links by Longitudinally Tailoring the Noise Power to Overwhelm the Signal Power
Authors: Su Xinzhou , Zhou Huibin , Jiang Zile , Alhaddad Abdulrahman , Ramakrishnan Muralekrishnan , Tur Moshe , Molisch Andreas F. , Willner Alan E.
Published: September 2024

We experimentally demonstrate a 120-Gbit/s 16-QAM free-space optical link with enhanced physical layer security by co-propagating a “noise” channel with longitudinally tailored transverse beam profile. 20-dB signal-to-interference ratio difference can be achieved at different longitudinal locations.
14 Bits per Photon Detection in the Photon Starved Regime for Deep-Space Optical Communication
Authors: Dacha Sai Kanth , Essiambre René-Jean , Ashikhmin Alexei , Blanco-Redondo Andrea , Zhang Yuanhang , Guo Cheng , Kschischang Frank R. , Banaszek Konrad , Ryf Roland , Weiner Matthew , Fontaine Nicolas , Murphy Thomas E. , Burrows Ellsworth
Published: September 2024

We demonstrate a record 14 bits-per-incident-photon Photon Information Efficiency (PIE) detection using a new transmitter design that produces an average extinction ratio of 89 dB and operates at four times higher rates than previous high-PIE demonstrations.
Titanium:Sapphire-on-insulator tunable chip-scale laser
Authors: Yang J. , Van Gasse K. , Lukin D. M. , Guidry M. A. , Ahn G. H. , White A. D. , Vučković J.
Published: September 2024

We demonstrate the first tunable integrated Titanium:Sapphire laser. The Titanium:Sapphire-on-insulator waveguide lasers achieve coarse tuning of up to 24.7 THz and operate at threshold powers as low as 6.9 mW, allowing for diode-pumped single-mode operation.
Titanium-sapphire-on-insulator (Ti:SaOI) nanophotonic waveguide amplifier
Authors: Van Gasse K. , Yang J. , Lukin D. M. , Guidry M. A. , Ahn G. , White A. , Vuckovic J.
Published: September 2024

We present a thin-film titanium-sapphire-on-insulator (Ti:SaOI) nanophotonic waveguide amplifier, achieving 19 dB net on-chip gain and picosecond-pulse amplification to a record 1 kW peak power and 2.3 nJ pulse energy.
Erbium-doped lithium niobate waveguide amplifier with internal net gain exceeding 20 dB
Authors: Cai Minglu , Li Tianyi , Zhang Xujia , Cao Xianyi , Wang Long , Liu Yuanbin , Chen Jianping , Wu Kan
Published: September 2024

The 10-cm long erbium-doped lithium niobate waveguide amplifier can achieve 52.2 dB signal enhancement with a 22.2 dB internal net gain at 1531 nm, which exceeds 20 dB at 45% wavelengths of the C-band.
On-chip InP/LiNbO3 microcomb laser
Authors: Ling Jingwei , Gao Zhengdong , Xue Shixin , Hu Qili , Li Mingxiao , Zhang Kaibo , Javid Usman , Lopez-Rios Raymond , Staffa Jeremy , Lin Qiang
Published: September 2024

We report a chip-scale InP/LiNbO3 laser that directly emits mode-locked microcomb on demand, with spectral bandwidth ∼50 nm, individual comb linewidth ∼600 Hz, frequency tuning rate > 2.4 × 1017 Hz/s, and 100% utilization of optical power for comb generation.
Kerr Microresonator Optical Parametric Oscillation with Wide Continuous Frequency Tuning
Authors: Stone Jordan R. , Lu Xiyuan , Moille Gregory , Westly Daron , Srinivasan Kartik
Published: September 2024

We leverage wavenumber-selective Kerr microresonator optical parametric oscillation to demonstrate nonlinear wavelength converters whose output frequencies are controlled via integrated heater technology and are continuously tunable over 1.5 THz.
High efficiency Raman Lasing in integrated GaN microresonators
Authors: He Zhaoqin , Sun Changzheng , Xiong Bing , Wang Jian , Hao Zhibiao , Wang Lai , Han Yanjun , Li Hongtao , Gan Lin , Luo Yi
Published: September 2024

We demonstrate high efficiency integrated Raman laser based on high-Q GaN microresonators. A threshold pump power of ~ 21 mW and a slope efficiency of ~ 44.5% are recorded.
Low voltage chip-scale electro-optic comb generation and photonic readout
Authors: Long David A. , Han Kyunghun , Bresler Sean M. , Song Junyeob , Bao Yiliang , Reschovsky Benjamin J. , Srinivasan Kartik , Gorman Jason J. , Aksyuk Vladimir A. , LeBrun Thomas W.
Published: September 2024

We present a frequency agile, integrated electro-optic comb spectrometer based on thin-film lithium niobate which can operate with ultralow radiofrequency voltages. As a demonstration we used this platform to simultaneously interrogate two chip-scale photonic sensors.