bluuebunny/crossref_metadata_2025 huggingface dataset:
Kerr-lens mode-locked Tm,Ho:CALGO laser
Authors: Wang Li , Petrov Valentin , Griebner Uwe , Zhang Ge , Loiko Pavel , Mateos Xavier , Bae Ji Eun , Rotermund Fabian , Xu Xiaodong , Major Arkady , Chen Weidong
Published: August 2022

We report on a Kerr-lens mode-locked Tm,Ho:CALGO laser delivering 46-fs pulses at ~2.06 μm with an average power of 110 mW. The maximum average power reached 423 mW for a pulse duration of 53 fs.
Multi-millijoule broadband pulse generation at 3 µm through a 2-µm pumped OPCPA
Authors: Zhou Fangjie , Wu Yi , Yin Yanchun , Cintron Adrian , Chang Zenghu
Published: August 2022

A ZnGeP2-based optical parametric chirped-pulse amplifier pumped by a 2 µm Ho:YLF generated a 3 mJ pulse at 3 µm. The bandwidth supports a 50 fs transform-limited duration.
Watt-level, 1.7 μm gain-switched fiber laser based on an intracavity tandemly-pump scheme
Authors: Zhang Lu , Zhang Junxiang , Sheng Quan , Fu Shijie , Shi Wei , Yao Jianquan
Published: August 2022

A watt-level pulsed Tm-doped fiber laser operating at 1720 nm based on the gain-switch effect and intracavity tandemly pump scheme has been proposed and experimentally demonstrated for the first time.
High-performance Dual-Polarization IQ Modulator Based on Hybrid Silicon and Lithium Niobate Platform
Authors: Gan Ranfeng , Chen Gengxin , Ruan Ziliang , Wang Zong , Huang Pucheng , Chen Kaixuan , Guo Changjian , Liu Liu
Published: August 2022

We demonstrate a large bandwidth and low half-wave voltage dual-polarization IQ modulator based on hybrid silicon and lithium niobate platform, with a roll-off of only 2 dB at 67 GHz and a Vπ of 3 V.
Silicon Photonic Modulators with Electro-Optic Polymer Embedded Ladder-Slot Waveguide
Authors: Abe Shunsuke , Seki Atsushi , Hara Hideo , Masuda Shin , Yamada Toshiki , Kaji Takahiro , Otomo Akira , Yamada Hirohito
Published: August 2022

We have developed silicon-photonic modulators with electro-optic polymer embedded silicon ladder-slot waveguide. 3-dB bandwidth calculated from RC product is estimated to be over 400 GHz. Fabricated modulators exhibited a half-voltage-length product (V
π
L) of 3.3 Vmm.
CEP-stable Single-Cycle Pulses from a Cr:ZnS Laser
Authors: Kowalczyk Maciej , Nagl Nathalie , Steinleitner Philipp , Pervak Vladimir , Głuszek Aleksander , Sotor Jarosław , Krausz Ferenc , Weigel Alexander , Mak Ka Fai
Published: August 2022

We present generation of 7.5-fs pulses at 2.3 µm driven by a carrier-envelope-phase-stabilized diode-pumped Cr:ZnS oscillator. The single-cycle waveforms exhibit exceptional stability with a residual phase jitter of 8.6 mrad (0.2 Hz − 11.4 MHz).
Fourier transform cavity ring-down spectroscopy using an optical frequency comb source
Authors: Dubroeucq Romain , Rutkowski Lucile
Published: August 2022

We demonstrate a new broadband multiplexed cavity ring-down approach based on a near-infrared frequency comb source and a time-resolved Fourier transform spectrometer. We apply the technique to spectroscopy of atmospheric CO2 and H2O.
Delay-Augmented Spectrometry for Target Classification Using a Frequency-Comb LiDAR
Authors: Han Yu , Salido-Monzú David , Wieser Andreas
Published: August 2022

We demonstrate LiDAR-based remote spectrometry of natural targets augmented with delay spectra using an ultra-broadband frequency comb. Material-dependent spectrally-resolved delays with an equivalent sensitivity better than 100 µm complement reflectance signatures for enhanced target classification.
Long-Distance Ranging with Fiber-Frontend-Based LiDAR using a Free-Running Dual-Comb Laser
Authors: Camenzind Sandro L. , Fricke Jacob F. , Kellner Jost , Willenberg Benjamin , Pupeikis Justinas , Phillips Christopher R. , Keller Ursula
Published: August 2022

We demonstrate long-distance ranging with a fiber-frontend-based LiDAR using a free-running solid-state dual-comb laser to reduce complexity and increase robustness. A distance of >10 meters to a moving target can be measured with micrometer precision.
Towards CMOS compatible high power mode-locked lasers and frequency combs
Authors: Singh Neetesh , Kärtner Franz X
Published: August 2022

We show our progress towards integrated modelocked lasers producing short pulses with high peak power and low timing jitter for applications in frequency combs and optical frequency synthesizer.
Lithium-niobate-based narrow-linewidth integrated lasers with petahertz frequency tuning rate
Authors: Snigirev Viacheslav , Riedhauser Annina , Lihachev Grigory , Riemensberger Johann , Wang Rui Ning , Möhl Charles , Churaev Mikhail , Siddharth Anat , Huang Guanhao , Popoff Youri , Drechsler Ute , Caimi Daniele , Hönl Simon , Liu Junqiu , Seidler Paul , Kippenberg Tobias J.
Published: August 2022

We demonstrate an electro-optically tunable hybrid integrated laser self-injection locked to a mode of a heterogeneously integrated lithium-niobate-on-Damascene-silicon-nitride microresonator. An intrinsic linewidth of 3 kHz and a frequency tuning rate of 12 × 1015 Hz/s were observed. Proof-of-principle coherent LiDAR experiments were performed.
120-fs Pulse Generation and Single-Pulse Trapping of Stretched-Pulse Solitons in Fiber Kerr Resonators
Authors: Dong Xue , Wang Zhiqiang , Renninger William H.
Published: August 2022

Stretched-pulse solitons are generated with record-short 120-fs duration. Stretched-pulse soliton trapping is demonstrated despite large intra-cavity dynamics, enabling controllable single-pulse performance. Theoretical predictions in excellent agreement with experiments provide insight and suggest opportunities for enhancement.
Self-starting and low-noise counter-propagating all-normal-dispersion (CANDi) fiber laser
Authors: Li Bowen , Prakash Neeraj , Huang Shu-Wei
Published: August 2022

Self-starting dynamics and noise characteristics of CANDi laser has been investigated. Near deterministic self-starting has been realize through enhanced self-seeding and the key to lowering the relative phase noise has been identified.
Spectral Peaking in Ultrashort Pulse Fiber Lasers with Molecular Gas Cell
Authors: Nishizawa Norihiko , Kitajima Shotaro , Sakakibara Youichi
Published: August 2022

We demonstrated spectral peaking phenomenon in fiber laser cavity for the first time. Ultrashort soliton pulse with multiple sharp spectral peaks were successfully generated in Er-doped SWNT fiber laser with HCN gas cell.
Accurate modelling of mode-locked dynamics in fibre lasers
Authors: Gupta Bhaswar Dutta , Erkintalo Miro , Aguergaray Claude
Published: August 2022

We present a comprehensive numerical mode-locked laser model that incorporates amplified spontaneous emission and demonstrates significantly improved agreement with experimental results. Pump powers, which are the only input parameters, are also accurately predicted.
Photonic integrated cascade-inhibited Brillouin laser with sub-100-mHz fundamental linewidth
Authors: Liu Kaikai , Harrington Mark W. , Nelson Karl D. , Behunin Ryan O. , Papp Scott B. , Blumenthal Daniel J.
Published: August 2022

We report a photonic-molecule-like waveguide resonator to suppress high order Stokes emissions, achieving only the first order Stokes emission and a fundamental linewidth of 71 mHz with 10mW output power.
LightHash: Experimental Evaluation of a Photonic Cryptocurrency
Authors: Pai Sunil , Park Taewon , Penkovsky Bogdan , Milanizadeh Maziyar , Ball Marshall , Dubrovsky Michael , Abebe Nathnael , Morichetti Francesco , Melloni Andrea , Solgaard Olav , Miller David A.B.
Published: August 2022

We propose
LightHash, the first feasible photonic cryptographic hash function for blockchain technology using programmable photonic networks. We experimentally evaluate
LightHash and assess whether photonic circuits can outperform digital competitors in latency and energy efficiency.
Chip-Integrated Full-Stokes Polarimetric Imaging Sensor
Authors: Zuo Jiawei , Bai Jing , Choi Shinhyuk , Chen Xiahui , Wang Chao , Yao Yu
Published: August 2022

We report a chip-integrated, dual-wavelength full Stokes polarimetric CMOS imaging sensor based on metasurface polarization filter arrays. Our device provides high accuracy polarization detection and imaging at a single snapshot.
Integrated Photonics for a Compact Strontium Optical Clock
Authors: Jammi S. , Ferdinand A. , Newman Z. , Ropp C. , Zhu W. , Lunden W. , Sheredy D. , Spektor G. , Yulaev A. , Westly D. , Simelgor G. , Song J. , Rakholia A. , Boyd M. , Agrawal A. , Aksyuk V. , Papp S.
Published: August 2022

We explore photonic-integrated circuits and metasurface optics to generate multiple, large diameter, circularly polarized laser beams for a compact strontium optical clock. We demonstrate an 88Sr magneto-optical trap with integrated photonics in a liter-scale apparatus.
Coherent Combining of Broadband Radiation Using Multicore Fibers with Square Array of Coupled Cores
Authors: Andrianov Alexey , Kalinin Nikolay , Anashkina Elena , Balakin Alexey , Skobelev Sergey , Leuchs Gerd , Litvak Alexander
Published: August 2022

We demonstrate stable propagation of the out-of-phase supermode in a multicore fiber and efficient coherent combination the output radiation in a setup without lenslet array scalable to high power levels applicable to fiber amplifiers.
Nonvolatile electrically controllable broadband switches based on phase-change material GST
Authors: Chen Rui , Fang Zhuoran , Zheng Jiajiu , Froech Johannes , Majumdar Arka
Published: August 2022

In this work, we report a nonvolatile electrically programmable broadband silicon photonic switch based on phase-change materials Ge2Sb2Te5 with compact coupling length (50 µm), small crosstalk (<-8 dB) across the entire telecommunication C-band, and record-high endurance (>2,800 cycles).
Ultrafast Switching in Integrated Photonics using Antimony
Authors: Aggarwal Samarth , Milne Tara , Farmakidis Nikolaos , Feldmann Johannes , Li Xuan , Shu Yu , Cheng Zengguang , Salinga Martin , Pernice Wolfram HP , Bhaskaran Harish
Published: August 2022

In this work, we demonstrate the use of Antimony as a reversible memory element in integrated photonics. We show antimony can be used as a multilevel memory with an ultrafast speed of operations.
Electrical switching of Ge2Sb2Te5 memory cells based on silicon photonic waveguide microheaters
Authors: Zhou Wen , Li Xuan , Youngblood Nathan , Pernice Wolfram H. P. , Wright C. David , Bhaskaran Harish
Published: August 2022

We demonstrate binary and multilevel electrical programming of the phase change material Ge2Sb2Te5 (GST) memory cells based on ion-implanted silicon-on-insulator (SOI) waveguide microheaters. GST cells can be reversibly switched by using low-amplitude electric pulses.
4-bit Ultra Low-loss Cascaded Nonvolatile Photonic Memories Using Broadband Transparent Phase change materials
Authors: Meng Jiawei , Peserico Nicola , Miscuglio Mario , Ma Xiaoxuan , Sorger Volker J.
Published: August 2022

Here we demonstrate an ultra-low-loss multi-state photonic memory with phase change materials (GeSbSe), which can be efficiently reprogrammed on-chip. 4-bit memory and over 100,000 cycle tests are shown for this material.
Dynamically Tunable Harmonic Generation Using Hybrid Metasurfaces Incorporating Phase-Change Chalcogenides
Authors: Zhu Muliang , Abdollahramezani Sajjad , Li Chentao , Fan Tianren , Harutyunyan Hayk , Adibi Ali
Published: August 2022

We experimentally demonstrate a dynamic nonlinear metasurface incorporating the phase-change material GST that facilitates large modulation of second harmonic generation featuring gap-surface plasmon resonance and tunable second-order nonlinearity of GST.
Photo-refractive Switching of Micro-ring Resonators via few-layer Tellurium
Authors: Xiao Yahui , Mao Dun , Wang Yixiu , Gu Tingyi
Published: August 2022

We observe exceptionally high photo-refractive nonlinearities in a silicon microring resonator covered with only 2-micrometer coverage of few-layer.
Dynamic Mapping of Temperature Using Phase-Change Materials
Authors: Nobile Nicholas , Erickson John , Ríos Carlos , Zhang Yifei , Hu Juejun , Xiong Feng , Youngblood Nathan
Published: August 2022

GST pixels are fabricated on metallic heaters where the optical reflection is observed and used to extract dynamic temperature changes. Our results provide a new way to measure the thermal response of microsystems in real-time.
Optical Emission of Iron-doped ZnSe Particles in a Chalcogenide Glass
Authors: Cook Justin , Chazot Matthieu , Kostogiannes Alexandros , Feit Corbin , Sosa Jaynlynn , Banerjee Parag , Richardson Martin C. , Richardson Kathleen A. , Schepler Kenneth L
Published: August 2022

Fe2+-doped ZnSe particles were dispersed in a chalcogenide glass matrix amenable to fiber drawing. Adding an alumina shell prevented ZnSe dissolution and preserved normal Fe2+ optical absorption and emission properties.
Ultrafast all-optical switching demonstrated on bacteriorhodopsin and photoactive yellow protein films
Authors: Krekic Szilvia , Mero Mark , Dér András , Heiner Zsuzsanna
Published: August 2022

We determined the nonlinear refractive indices of bR and PYP films and achieved ultrafast all-optical switching in both materials. The PYP films exhibited sub-200-fs rise and 420-fs decay times nominally enabling >> 100-GHz modulation speeds.
Single-Shot Cross-Correlation of Counter-Propagating Pulses in a Disordered Nonlinear Crystal
Authors: Dorrer Christophe , Shaw Jessica L.
Published: August 2022

Single-shot acquisition of the cross-correlation between two counterpropagating short pulses is demonstrated over 150 ps using sum-frequency generation in an SBN61 crystal with random ferroelectric domains, revealing the jitter between two laser systems.
Wavefront-tilt Correction of Laser Pulses by Angular Dispersion Management
Authors: Buck Samuel , Galimberti Marco
Published: August 2022

A new diagnostic has been tested to visualise pulse-front-tilt in ultrashort laser pulses. Dispersive mediums were rotationally controlled in an automated feedback loop in accordance to the diagnostic to successfully minimise existing angular dispersion.
Seeing the Light Wave: On-Chip Sampling of Electric Fields with Attosecond Resolution
Authors: Keathley P. Donald
Published: August 2022

Light-matter interactions important to both sensing and energy conversion can unfold on attosecond to femtosecond timescales. We demonstrate that nanoantenna-based optoelectronic detectors provide the sensitivity and resolution needed to reveal these dynamics.
Mid-Infrared Upconversion Time-Stretch Spectroscopy
Authors: Hashimoto Kazuki , Nakamura Takuma , Kageyama Takahiro , Badarla Venkata Ramaiah , Shimada Hiroyuki , Ideguchi Takuro
Published: August 2022

We develop upconversion time-stretch infrared spectroscopy and demonstrate a high-resolution and broadband measurement of mid-infrared absorption spectra of gas-phase molecules at a scan rate higher than 10 MSpectra/s.
Low-noise near-ultraviolet photonic integrated lasers
Authors: Siddharth Anat , Lihachev Grigory , Wunderer Thomas , Voloshin Andrey S. , Haller Camille , Wang Rui Ning , Teepe Mark , Yang Zhihong , Liu Junqiu , Riemensberger Johann , Grandjean Nicolas , Johnson Noble , Kippenberg Tobias J.
Published: August 2022

We demonstrate for the first time a hybrid integrated low-noise laser composed of a gallium nitride (GaN) based laser diode and a silicon nitride photonic chip based microresonator operating at record low wavelengths as low as 410 nm in the near ultraviolet wavelength region.
High-gain photoreceiver module integrated with QD-SOA for high-baud-rate optical communication
Authors: Umezawa Toshimasa , Akahane Kouich , Matsumoto Atsushi , Kanno Atsushi , Yamamoto Naokatsu
Published: August 2022

We present a compact hybrid photoreceiver module integrated with a high-bandwidth photodetector and a temperature-stable 1.5-μm quantum dot high-gain semiconductor optical amplifier instead of a transimpedance amplifier at 80 Gbaud.
MW-level Pulses from an All-Fiber and Self-Starting Femtosecond Oscillator
Authors: Haig Henry , Sidorenko Pavel , Thorne Robert , Wise Frank W.
Published: August 2022

We present an all-fiber Mamyshev oscillator that generates 40 fs and 80 nJ pulses. The resulting 1.5-MW peak power is 20 times higher than that of prior all-fiber and self-starting lasers.
Influence of the In-Stretcher Beam Size on the Temporal Contrast of CPA Laser Systems
Authors: Roeder Simon , Zobus Yannik , Brabetz Christian , Bagnoud Vincent
Published: August 2022

We demonstrate here, that for clever stretcher designs the dependency between beam size and the slow rising edge in the ps-scale, that is present in most CPA laser systems, can be used for contrast improvements.
Start-to-End Software Model: Engineering and Reverse-Engineering Laser Systems
Authors: Hirschman Jack , Lemons Randy , Kroetz Peter , Carbajo Sergio
Published: August 2022

A full start-to-end (S2E) software model of a laser system – including oscillator, amplifier, stretcher/compressor, pulse shaper, and non-linear conversion – can be essential in choosing the hardware design and establishing limitations on what can be accomplished given a specific hardware setup. Furthermore, such S2E models can even allow one to reverse engineer a laser system should it be necessary for characterization. Here, we present a generalized S2E model of a photoinjector laser system, currently targeted for X-ray Free-Electron Lasers but which can readily be adapted to any broadly defined laser system.
Observance of lasing and amplification in the first titanium doped sapphire whispering-gallery laser
Authors: Azeem Farhan , Trainor Luke S. , Gao Ang , Isarov Maya , Strekalov Dmitry V. , Schwefel Harald G. L.
Published: August 2022

We report on the first ever titanium doped sapphire whispering-gallery laser with a record low threshold of 14.2 mW. Moreover, amplification is shown in the mode narrowing of a probe laser at 795 nm.
In-cavity beam cleaning by anti-resonant hollow-core fiber spliced to multimode Yb-doped fiber
Authors: Li Huizi , Goel Charu , Zang Jichao , Chang Wonkeun , Yoo Seongwoo
Published: August 2022

We demonstrated that an anti-resonant hollow-core fiber, exhibiting large higher-order mode extinction ratio, works as an efficient spatial mode filter inside a cavity, improving the M2 from 2.09 to 1.39 at 57.7 W laser output.
Galaxy waves: 3D inhomogeneous auto-accelerating beams
Authors: Pan Jing , Shen Yijie , Wang Hao , Liu Qiang
Published: August 2022

We propose and generate a new class of structured light whose wavepackets have 3D inhomogeneous angular velocity evolution with auto-accelerating upon both its longitudinal propagation and transverse multilayer rotation akin to galactic kinematics.
Towards efficient nanostructuring of silica glass by elliptically polarized ultrafast laser pulses
Authors: Lei Yuhao , Shayeganrad Gholamreza , Wang Huijun , Deng Chun , Kazansky Peter G.
Published: August 2022

Efficient creation of anisotropic nanopores and associated birefringence in silica glass by elliptically polarized femtosecond laser pulses is observed, contrary to common belief. Application to multiplexed optical data storage is demonstrated.
Mach-Zehnder FOPA for Dual Polarization Wavelength-Division-Multiplexed 100G Signal Amplification
Authors: Bessin Florent , Gordienko Vladimir , Ferreira Filipe M. , Doran Nick
Published: August 2022

We demonstrate amplification of 17x100 GHz-spaced channel in C-band by a PI-FOPA based on Mach-Zehnder architecture with net gain >10 dB and confirmed its robustness over time. A commercial 100G-PDM-QPSK transponder was used to measure/compare the bit-error-rate versus received power with a commercial EDFA.
Transmission of 100 GBaud 64QAM Using an All-Silicon IQ modulator
Authors: Berikaa Essam , Alam Md Samiul , Samani Alireza , Bernal Santiago , Lessard Stéphane , Plant David V.
Published: August 2022

We demonstrate the transmission of 100 GBaud 64QAM achieving a BER below the 25% OH SD-FEC threshold using a single segment all-silicon IQ modulator; featuring a throughput of 600 (net 480) Gb/s.
250C Process for < 2dB/m Ultra-Low Loss Silicon Nitride Integrated Photonic Waveguides
Authors: Bose Debapam , Wang Jiawei , Blumenthal Daniel J.
Published: August 2022

We report fabrication of CMOS-compatible Si3N4 waveguides, including resonators, with 2.0dB/m loss as well as 11.18million loaded Q at 1550nm, using a maximum temperature of 250C during and after Si3N4 deposition, enabling system-on-chip integration.
Nonlinear Loss and Damage Threshold in Silicon Photonic Waveguides: Modelling and Experimental Verification
Authors: Singer Stefan , Trocha Philipp , Zwickel Heiner , Kieninger Clemens , Kemal Juned , Kaschel Mathias , Menzel Christoph , Randel Sebastian , Freude Wolfgang , Koos Christian
Published: August 2022

Nonlinear losses of integrated waveguides are crucial for many applications. We develop and experimentally verify a quantitative model for two-photon absorption (TPA), subsequent free-carrier absorption (FCA), and damage thresholds of silicon photonic waveguides under pulsed and continuous-wave (CW) operation.
Cosmic radiation reduced photo-thermal dispersion in silicon micro-ring resonators
Authors: Chang Lorry , Mao Dun , Lee Hwaseob , Yu Anthony W. , Krainak Michael A. , Gu Tingyi
Published: August 2022

The accumulative radiation increases the defects density in silicon and reduces the free-carrier lifetime, which results in reduced photo-thermal dispersion in silicon micro-ring resonators.
ZPAN: A New Organic Nonlinear Optical Crystal for THz Generation
Authors: Lutz Matthew J. , Zaccardi Zachary B. , Ho (Enoch) Sin-Hang , Michaelis David J. , Johnson Jeremy A.
Published: August 2022

We discover and characterize the new organic nonlinear optical crystal ZPAN for THz generation.
Programmable Microlaser Array Enabled by Living Biomaterials
Authors: Gong Xuerui , Qiao Zhen , Chen Yu-Cheng
Published: August 2022

A biologically programmable microlsaer was developed, where lasing wavelength can be controlled by enzyme reaction in hydrogel microdroplets confined in microcavities. This study represents the first development of a biological controlled laser for optical information applications.
Towards a Space-qualified Kerr-Lens-Modelocked Laser
Authors: Ostapenko Hanna , Feng Ye , Lamour Tobias , McCracken Richard , Mandel Oliver , Weise Dennis , Reid Derryck T.
Published: August 2022

We report 1.51-GHz and 2.185-GHz Kerr-lens-modelocked Yb:Y2O3 ring lasers constructed by directly bonding the cavity components onto an aluminum baseplate using an approach already proven in space-borne instrumentation.
Efficient high-peak-power 50-fs-class Yb:YAG thin-disk laser oscillator
Authors: Fischer Julian , Drs Jakub , Müller Michael , Modsching Norbert , Labaye François , Wittwer Valentin J. , Südmeyer Thomas
Published: August 2022

We demonstrate efficient short-pulse generation from Yb:YAG in the regime of strong intracavity self-phase-modulation. We reach 102-MW, 52-fs pulses at 103-W average-power with 26% optical-to-optical efficiency, presenting the highest peak-power of any ultrafast laser oscillator.
Pulse energy scaling of multi-pass cells for nonlinear spectral broadening applications
Authors: Heyl Christoph M. , Seidel Marcus , Escoto Esmerando , Schönberg Arthur , Carlström Stefanos , Arisholm Gunnar , Lang Tino , Hartl Ingmar
Published: August 2022

We discuss basic pulse energy scaling principles for multi-pass cells (MPCs) and introduce a novel multi-pass cell type which we employ to numerically predictpost-compression of 125 mJ pulses using a 2 m setup.
Ultra-broadband, tunable mid-IR source based on enhanced-efficiency intrapulse difference-frequency generation
Authors: Bournet Q. , Guichard F. , Natile M. , Zaouter Y. , Joffre M. , Bonvalet A. , Pupeza I. , Hofer C. , Druon F. , Hanna M. , Georges P.
Published: August 2022

We report on an ultra-broadband mid-infrared source based on intrapulse difference-frequency-generation delivering 135 nJ, 50 fs-long pulses at 250 kHz repetition-rate. A bichromatic waveplate is used, enhancing the number of photons for the mid-infrared generation.
Opportunities and challenges for deep physical neural networks based on nonlinear optical pulse propagation
Authors: Wright Logan G. , Onodera Tatsuhiro , Stein Martin M. , Wang Tianyu , Schachter Darren T. , Hu Zoey , McMahon Peter L.
Published: August 2022

We have shown that nonlinear pulse propagation can be designed to directly, all-optically implement machine learning calculations. Building from proof-of-concept experiments, we analyze opportunities for ultrafast, ultra-efficient nonlinear optical neuromorphic systems and smart sensors.
All-Photonic Artificial Neural Network Processor Via Nonlinear Optics
Authors: Basani Jasvith Raj , Krastanov Stefan , Heuck Mikkel , Englund Dirk R.
Published: August 2022

We propose an all-photonic architecture to accelerate linear matrix processing by encoding information in the amplitudes of frequency states. Our design is unique in providing a unitary, reversible mode of computation at high speeds.
Demonstration of Non-Symmetric Thin-Film Lithium Niobate Modulator with a 3-dB Bandwidth Beyond 100 GHz
Authors: Juneghani Farzaneh Arab , Zhao Jie , Vazimali Milad Gholipour , Chen Xi , Le Son Thai , Chen Haoshuo , Ordouie Ehsan , Fontaine Nicolas K , Fathpour Sasan
Published: August 2022

Thin-film lithium niobate electro-optic modulators with bandwidths >100 GHz are demonstrated. The trade-off between bandwidth and voltage is alleviated by non-symmetric positioning of waveguides with respect to electrodes and by incorporating a dielectric buffer layer.
Piezoelectric High-Speed Spatial Light Modulator Based on Guided-Mode Resonances
Authors: Hermans Artur , Christen Ian R. , Panuski Christopher , Zimmermann Matthew , Leenheer Andrew J. , Dong Mark , Gilbert Gerald , Eichenfield Matt , Englund Dirk
Published: August 2022

We demonstrate a high-speed spatial light modulator technology based on a silicon nitride platform fabricated in a CMOS process. Using piezoelectrically modulated guided-mode resonances, we can reach bandwidths over 10 MHz for a single pixel.
Demonstration of a Heterogeneous III-V/Si DWDM Transmitter based on (De-) Interleaved Frequency Comb
Authors: Cheung Stanley , Yuan Yuan , Peng Yiwei , Kurczveil Geza , Hu Yingtao , Liang Di , Beausoleil Raymond G.
Published: August 2022

For the first time, a simultaneous wavelength and space division multiplexed transmitter is demonstrated on a heterogeneous III-V-on-silicon platform. The proof-of-concept experiment shows (de-)interleaved 2×8 comb lines each modulated at 25 Gb/s.
Polarization-insensitive thin-film lithium niobate electro-optic modulator
Authors: Pan Ying , He Mingbo , Xu Mengyue , Lin Zhongjin , Ke Wei , Lin Yanmei , Yu Siyuan , Cai Xinlun
Published: August 2022

Based on the thin-film lithium niobate platform, we experimentally demonstrate a polarization-insensitive electro-optic modulator which features a polarization-dependent loss of 0.35 dB and an on-chip loss of less than 2 dB.
Optical Damage and Defect Generation in Transition Metal Dichalcogenides Under Ultrafast Excitation
Authors: Ahmad Sabeeh Irfan , Solomon Joel M. , Dave Arpit , Lu Li-Syuan , Wu Yu-Chen , Chang Wen-Hao , Luo Chih-Wei , Her Tsing-Hua
Published: August 2022

Multi-shot ablation studies of monolayer MoS2 and WS2 reveal the record optical robustness of these materials where optical damage results in laser-induced vacancies that greatly affect their optical properties.
Integrated Optical Frequency Combs for Low-Phase Noise mm-waves Generation
Authors: Lima Eduardo Saia , Andriolli Nicola , Conforti Evandro , Contestabile Giampiero , Junior Arismar Cerqueira Sodré
Published: August 2022

We experimentally implement a low-phase noise mm-waves generator based on integrated optical frequency comb, which provides -80 dBc/Hz for 1 kHz offset at 28 GHz and spectral purity equivalent to commercially available RF generator.
Physical-Layer Secure Optical Communication Based on Randomized Phase Space in Pseudo-3-Party Infrastructure
Authors: Shahriar Kh Arif , Khalil Mostafa , Chan Adrian , Chen Lawrence R. , Kuang Randy , Plant David V.
Published: August 2022

We experimentally demonstrate a novel optical communication scheme that implements physical layer security through phase randomization in a round-trip mechanism involving pseudo-3-party transmitter/receiver infrastructure, achieving 200 Gbits/s transmission over 80 km SMF with QPSK modulation.
FPGA Implementation of Post-Processing for Classical Secure Key Distribution in Fiber Networks
Authors: Cao Ying , Chen Shuhang , Zhang Liuming , Huang Xinran , Yang Xuelin
Published: August 2022

Real-time post-processing for physical-layer secure key distribution in fiber networks is implemented on FPGA, with quantization, information reconciliation and privacy amplification modules, where a key generation rate of 11.7 Mbps is achieved.
Fast-Tuning Adiabatic Microrings for CROW Filters and Athermal WDM Receivers in a 45 nm SOI CMOS Process
Authors: Kramnik Danielius , Fargas Cabanillas Josep M. , Gluhović Ðorđe , Buchbinder Sidney , Popović Miloš A. , Stojanović Vladimir
Published: August 2022

Adiabatic microrings with opposing p/n contacts achieve full carrier sweepout in reverse bias and energy-efficient carrier injection in forward bias, exhibiting 200GHz/V peak shift in C-band for athermal tuning over a 220 GHz range.
Slotted Silicon Microring Resonator Gated by Transparent Conducting Oxide Capacitor
Authors: Hsu Wei-Che , Kupp Benjamin , Trotter Cade , Nujhat Nabila , Conley John F. , Wang Alan X.
Published: August 2022

We demonstrated a slotted silicon microring resonator with the waveguide gap filled by high mobility titanium-doped indium oxide (ITiO) MOS capacitor. It experimentally achieved an extremely large electro-optic wavelength tunability of 540 pm/V.
Add-drop silicon ring resonator with low-power MEMS tuning of phase and coupling
Authors: Edinger Pierre , Van Nguyen Chris Phong , Takabayashi Alain Yuji , Antony Cleitus , Talli Giuseppe , Verheyen Peter , Khan Umar , Bogaerts Wim , Quack Niels , Gylfason Kristinn B.
Published: August 2022

Applications of silicon photonics range from sensing to microwave processing. However, low-power active filters with long FSRs are lacking. We demonstrate an add-drop ring filter with 4 nm FSR and nW-level MEMS tuning of phase and coupling.
Low-concentration detection of CO2 using suspended silicon waveguides in the mid-IR
Authors: Lin Pen-Sheng , Quellmalz Arne , Huang Po-Han , Parhizkar Shayan , Negm Nour , Suckow Stephan , Ottonello-Briano Floria , Lemme Max C. , Niklaus Frank , Gylfason Kristinn B.
Published: August 2022

We show detection of CO2 concentrations as low as 500 ppm using a suspended silicon photonic mid-IR waveguide. The performance is enabled by the low propagation loss (2.35 ± 0.25) dB/cm permitting sensing with waveguides up to 7 cm in length.
Cavity ring-down spectroscopy of methane in hypersonic Laval expansions
Authors: Dudás Eszter , Kassi Samir , Perot Solène , Charles Christine , Rutkowski Lucile , Georges Robert
Published: August 2022

We report the study of the hot bands of methane in a vibrationally hot and rotationally cool environment. The near infrared transitions were measured usingcavity ring down spectroscopy in a molecular hypersonic expansion.
1 GHz mid-infrared dual-comb spectrometer spanning more than 30 THz
Authors: Chang Peter , Hoghooghi Nazanin , Egbert Scott , Xing Sida , Lesko Daniel , Lind Alexander , Rieker Gregory , Diddams Scott
Published: August 2022

We demonstrate a broadband 1 GHz mid-infrared dual comb spectrometer based on intra-pulse difference frequency generation, addressing the 3 – 5 µm wavelength region for the characterization of dynamic molecular systems.
Ultra-high Frequency Vibration Measurement using Fading Suppressed Coherent φ-OTDR with Randomized Sampling
Authors: Lin Zhonghong , Zhao Zhiyong , Liu Deming , Tang Ming
Published: August 2022

By applying randomized sampling to interference fading suppressed coherent phase-sensitive optic time domain reflectometry (φ-OTDR) system, quantitative vibration signal measurement with much higher frequency than the Nyquist sampling theorem determined upper limit was demonstrated.
DCT-Cam for Single-shot Action Recognition
Authors: Liang Yu , Huang Honghao , Li Jingwei , Dong Xiaowen , Chen Minghua , Yang Sigang , Chen Hongwei
Published: August 2022

We propose a DCT-Cam to capture the video spectrum directly from the scene in a single shot, which can reduce 75% data requirement and achieve the same accuracy for the action recognition.
Defect-engineered localized exciton in monolayer WSe2
Authors: Maiti Rishi , Chen Cecilia , Rajendran Anjaly , Yao Kaiyuan , Bhatt Gaurang , Hone James , Lipson Michal , Gaeta Alex L.
Published: August 2022

Here, we demonstrate controlled defect engineering in monolayer WSe2 via UV-ozone treatment. The creation of Tungsten oxyselenide (TOS) shows broad red-shifted PL emission centered at ~770 nm at room temperature.
Self-Trapped Exciton in One-Dimensional CsCu2I3 Nanowires
Authors: Xing Xinxin , Tong Tian , Mohebinia Mohammadjavad , Wang Zhiming , Bao Jiming
Published: August 2022

Low-dimensional CsCu2I3 perovskite has recently attracted extensive attention for its unique structure and photoelectric properties. We demonstrate a detailed spectroscopy study of its self-trapped exciton emission and present a fundamental understanding of the electron-phonon interaction.
Spectrally Efficient Nonlinear Subcarriers for Nonlinear Frequency Division Multiplexing
Authors: Balogun Muyiwa , Derevyanko Stanislav
Published: August 2022

We propose the use of spectrally efficient H ermite-Gaussian c arriers, for NFT-based optical communication systems and demonstrate a record high SE for NFDM schemes in excess of 4.4 bits/s/Hz.
Demonstrations of 160×28 GBaud C-band Same-Wavelength Bidirectional Fiber Transmission Experiments
Authors: Wang You , Li Wei , Wu Chengcheng , Chen Yaobin , Mei Muyang , Feng Zhongshuai , Cao Shiyi , Gan Lin , Guo Qiang , Xiao Xinhua
Published: August 2022

We demonstrate C-band same-wavelength bidirectional transmission experiments of 66.7 Tb/s DP-16QAM and 33.3 Tb/s DP-QPSK over 90 km and 130 km, with Rayleigh back-scattering suppressed by Raman amplification and reflection interferences eliminated through LFMTS-assisted DSP.
First Demonstration of 113 Gb/s Full-spectrum Modulated Nonlinear Frequency Division Multiplexing Transmission System
Authors: Zhang Ruofan , Xi Lixia , Zhang Xulun , Wei Jiacheng , Deng Jiayun , Du Shucheng , Zhang Wenbo , Zhang Xiaoguang , Xiao Xiaosheng
Published: August 2022

We demonstrate, for the first time, a record 113 Gb/s (spectral efficiency of 2.8 bits/s/Hz) full-spectrum modulated nonlinear frequency division transmission system with 256 nonlinear subcarriers for continuous spectrum and 11 eigenvalues for discrete spectrum.
Record Capacity-Reach of C band IM/DD Optical Systems over Dispersion-Uncompensated Links
Authors: Wang Haide , Zhou Ji , Wei Jinlong , Mo Wenxuan , Feng Yuanhua , Liu Weiping , Yu Changyuan , Li Zhaohui
Published: August 2022

We experimentally demonstrate a C band 100Gbit/s intensity modulation and direct detection entropy-loaded multi-rate Nyquist-subcarrier modulation signal over 100km dispersion-uncompensated link. A record capacity-reach of 10Tbit/s×km is achieved.
Method for Building kW-class Lasers with kHz-class Linewidths
Authors: Benedick Andrew
Published: August 2022

Binary phase shift key phase-modulated waveforms with GHz bandwidths, suitable for use in kW-class fiber amplifiers, can be narrowed back to the source laser’s linewidth via second harmonic generation.
Spectrally Tunable High-Power Low-Noise Yb:fiber-based Chirped Pulse Amplifier
Authors: Shumakova Valentina , Fellinger Jakob , Pecile Vito F. , Leskowschek Michael , Collin Aldia P. E. , Mayer Aline S. , Salman Sarper , Fan Mingqi , Balla Prannay , Schilt Stéphane , Heyl Christoph M. , Hartl Ingmar , Porat Gil , Heckl Oliver H.
Published: August 2022

We report on 100-W 132 MHz Yb:fiber amplifier seeded by a low noise oscillator. We tune the laser spectrum to match it to different applications while keeping noise properties and power performance of the system.
Inverse Design of Multi-Layer Foundry-Fabricated Optical Vortex Beam Emitters
Authors: White Alexander D. , Su Logan , Yang Ki Youl , Shahar Daniel I. , Ramachandran Siddharth , Vučković Jelena
Published: August 2022

We experimentally demonstrate inverse-designed foundry-fabricated vortex beam emitters that take advantage of multi-layer heterogeneous integration to achieve wide bandwidths and high efficiencies.
Demonstration of On-Chip Optical Skyrmionic Beam Generators
Authors: Lin Wenbo , Ota Yasutomo , Arakawa Yasuhiko , Iwamoto Satoshi
Published: August 2022

We experimentally demonstrate on-chip optical skyrmionic beam generators. Skyrmionic beams with tailored skyrmion numbers were generated from single silicon mi-crorings diffracting two beams whose spin and orbital angular momenta were controlled via optical spin-orbit coupling.
Wavelength tunable mid-infrared generation in non-critically cut CdSiP2 crystals by cascaded optical parametric generation with a nanosecond 1.064 µm Nd:YAG laser
Authors: Murray R. T. , Anderson J. , Wei J. , Zawilski K. T. , Schunemann P. G. , Guha S.
Published: August 2022

We demonstrate a method to generate wavelength tunable mid-infrared radiation from 3.7–4.3 µm using a nanosecond 1.064 µm Nd:YAG pump at 10 Hz, employing cascaded optical parametric generation in non-critically cut CdSiP2 crystals.
Tailored Tuning of Temperature-Controlled Supercontinuum Generation in Liquid-Core Fibers
Authors: Scheibinger Ramona , Hofmann Johannes , Chemnitz Mario , Schmidt Markus A.
Published: August 2022

We demonstrate real-time tailoring of supercontinuum generation in liquid-core fibers through altering the fiber’s dispersion profile via longitudinal temperature distributions. Experiments using a Peltier element array show extraordinary modification of the spectrum of higher-order modes.
225 GHz Mode-Hop-Free Tuning with a Narrow Linewidth Integrated InP/Si Laser
Authors: Pintus Paolo , Guo Joel , Jin Warren , Tran Minh A. , Peters Jonathan , Xiang Chao , Liang Joe , Ohanian Osgar John , Bowers John E.
Published: August 2022

We demonstrated mode-hop-free tuning over 225 GHz (1.8 nm) in an integrated external-cavity diode laser operating around 1550 nm and with an intrinsic linewidth of 4.7 kHz.
Universally printable single-mode laser on low-index platforms
Authors: Lufungula Isaac Luntadila , Shams-Ansari Amirhassan , Renaud Dylan , de Beeck Camiel Op , Cuyvers Stijn , Poelman Stijn , Roelkens Gunther , Loncar Marko , Kuyken Bart
Published: August 2022

Heterogeneous laser integration usually entails a platform-dependent process flow and design. We experimentally show a single-mode laser that can be printed on all platforms with n
plat

f

orm
= 1.7 − 2.3 without changing the design or process flow.
High-performance III-V/Si3N4 O-band External Cavity Tunable Laser
Authors: Guo Yuyao , Li Xinhang , Jin Minhui , Liu Chuxin , Xu Weihan , Lu Liangjun , Xie Jingya , Chen Jianping , Zhou Linjie
Published: August 2022

We present a III-V/Si3N4 O-band hybrid laser, which shows a high output power of 42 mW, wide tuning range of 62 nm with side-mode suppression ratio >50 dB, and narrow intrinsic linewidth of ~600 Hz.
Electrically-Driven Light Emitter in Tailor-Made Photonic Crystal Cavity
Authors: Ovvyan Anna P. , Pyatkov Felix , Li Min-Ken , Gehring Helge , Beutel Fabian , Kumar Sandeep , Krupke Ralph , Pernice Wolfram H. P.
Published: August 2022

We for the first-time developed telecom hybrid graphene photonic crystal cavity device with an integrated carbon nanotube ensuring high enhancement of its electroluminescent signal and demonstrating the supervision of its intensity.
Photonic Metacrystal: Design and Experimental Results
Authors: Hu S. , Khater M. , Kratschmer E. , Engelmann S. , Arnold K. P. , Green W. M. J. , Weiss S. M.
Published: August 2022

Going beyond the limited design freedoms of traditional photonic crystals, we experimentally show how photonic metacrystals exploit the inclusion of subwavelength dielectric scatterers in the unit cell to deterministically modify k-space and real space profiles.
Impact of Link Limitations in 50 Gbps PAM-2 VCSEL MMF Links: Alignment, Equalization and Fiber Type
Authors: Khurana Arjun , Thomas Varghese A. , Gallo John T. , Ralph Stephen E.
Published: August 2022

The impact of connector offset countered with limited equalization is quantified for 50GBaud high-speed VCSEL MMF links comprised of 850nm and 1060nm VCSELs and OM4 and OM5 fiber.
67.5 Gbit/s PAM-8 Signal Transmissions Over 25-km SMF With a 1550-nm 10G-Class DML Using Machine Learning
Authors: Reza Ahmed Galib , Costas Marcos Troncoso , Browning Colm , Otero Francisco Diaz , Barry Liam
Published: August 2022

We report 67.5 Gbit/s PAM-8 signal transmissions over a 25-km SMF using a 1550-nm 12-GHz bandwidth DML. Performance below the HD-FEC level is achieved using a machine learning equalizer operating with baud-rate sampling.
C-band single-lane 290.4-Gb/s net rate PS-PAM-16 transmission over 1-km SSMF using low-complexity nonlinear equalization and single DAC
Authors: Wu Xiong , Zhang Junwei , Yan Qifeng , Lau Alan Pak Tao , Lu Chao
Published: August 2022

We experimentally demonstrate C-band single-lane transmission of IM/DD 100-GBaud PS-PAM-16 signal at a record of 290.4-Gb/s net rate over 1-km SSMF using low-complexity nonlinear equalization and single DAC.
Polarization independence in superconducting microwire single-photon detectors
Authors: Reddy Dileep V. , Otrooshi Negar , Nam Sae Woo , Mirin Richard P. , Verma Varun B.
Published: August 2022

Micrometer-scale superconducting wires can detect single photons at near-infrared wavelengths. We employ a novel meander geometry to fabricate high-fill factor microwire devices with low polarization sensitivity (1.02 ± 0.008) and high efficiency 93%) across a 40 nm bandwidth centered at 1550 nm.
Multi-wavelength reconstruction in a compact (< mm) high-resolution (< 0.1 nm) random photonic crystal spectrometer
Authors: Kodama Takumasa , Sugano Ryo , Hofs Jocelyn , Ohtsuka Minoru , Seki Miyoshi , Yokoyama Nobuyuki , Okano Makoto , Tanabe Takasumi
Published: August 2022

We experimentally demonstrate the reconstruction of multiple wavelength light with an ultra-compact spectrometer. The spectrometer is based on a random photonic crystal and operates with a spectral resolution beyond the fabrication error.
Label-free three photon micro-endoscope
Authors: Septier D. , Mytskaniuk V. , Habert R. , Labat D. , Baudelle K. , Cassez A. , Brévalle G. , Conforti M. , Bouwmans G. , Rigneault H. , Kudlinski A.
Published: August 2022

We report the first three photon micro-endoscope enabling imaging of unlabeled biological tissues. It is based on a double clad antiresonant hollow-core fiber which is designed to make the endoscope highly multimodal (2PEF, 3PEF, SHG, THG, CARS).
High-Resolution Millimeter-Depth Optical Coherence Tomography with 1-um 100-GHz Chip-Scale Laser Frequency Microcombs
Authors: Melton T. , McMillan J. , Wang W. , Lai Y. , Gerber M. , Rodriguez M. , Nouri-Mahdavi K. , Hubschman J.P. , Wong C. W.
Published: August 2022

We demonstrate an optical coherence tomography system utilizing a 1-um Kerr frequency comb. We take images with comparable image quality to that of an SLD with a resolution of 10um.
On-chip Multi variant COVID 19 detector From silicon nitride double-ring resonators
Authors: Grosman Arieh , Duanis-Assaf Tal , Mazurski Noa , Stern Liron , Reches Meital , Levy Uriel
Published: August 2022

We report a label free, rapid and reliable bio-sensor for SARS-CoV-2(COVID-19), consisting of Silicon-Nitride Double-micro-ring-resonator (DMRR) with surface functionalization. Minimum detected concentration of ~ 10 cp/µL and sensitivity of 743 nm/RIU were achieved.
Native Waveguide Light Emitting Diodes in Silicon Electronic-Photonic Platforms
Authors: de Cea Marc , Ram Rajeev J.
Published: August 2022

We demonstrate electrically driven, native silicon waveguide LEDs in silicon photonic fabrication processes. The emission wavelength is centered at 1130 nm and the optical power is >100 pW, allowing for on-chip detection of the generated light.
Large Scale Frequency-Encoded RF-Photonic Neural Networks
Authors: Davis Ronald , Chen Zaijun , Hamerly Ryan , Englund Dirk
Published: August 2022

Photoelectric multiplication between RF-encoded optical frequency combs allows single-shot matrix-vector multiplication and nonlinear activation, leading to high throughput and ultra-low latency. This architecture allows for an arbitrary number of layers to be cascaded in analog.
40 GHz and 1.1-V Vπ InP-Based n-i-n EO Modulator
Authors: Xing Jianghao , Sun Changzheng , Xiong Bing , Wang Jian , Hao Zhibiao , Wang Lai , Han Yanjun , Li Hongtao , Luo Yi
Published: August 2022

An InP-based electro-optic modulator with an n-i-n heterostructure is demonstrated. An ultra-low half-wave voltage-length product of 0.22 V·cm is recorded, together with 40 GHz bandwidth for a 2-mm modulation length.
Integrated electronic-photonic barrel shifter for high-performance optical computing
Authors: Feng Chenghao , Gu Jiaqi , Zhu Hanqing , Pan David Z. , Chen Ray T.
Published: August 2022

We propose a 2-bit electronic-photonic shifter based on microdisk add-drop switches with experimental demonstrations. The proposed shifter can be deployed in future high speed and energy efficient electronic-photonic arithmetic logic units.
Tunable narrowband MIR ns-pulses at 5 kHz repetition from a 70% efficient backward wave OPO pumped at 1030 nm
Authors: Mølster Kjell Martin , Guionie Marie , Mutter Patrick , Dherbecourt Jean-Baptiste , Melkonian Jean-Michel , Délen Xavier , Zukauskas Andrius , Canalias Carlota , Laurell Fredrik , Georges Patrick , Raybaut Myriam , Godard Antoine , Pasiskevicius Valdas
Published: August 2022

Precision-tuned nanosecond pulses at 1981.1 nm and 2145.6 nm are generated from a PPKTP BWOPO with 70% efficiency, pumped by an amplified single-frequency fiber laser at 1030 nm. It is free from mechanically-adjustable optical cavities.
Light-Induced Structuration of Azopolymer Films for Reconfigurable Diffractive Optical Elements
Authors: Oscurato Stefano L. , Reda Francesco , Salvatore Marcella , Borbone Fabio , Maddalena Pasqualino , Ambrosio Antonio
Published: August 2022

Reconfigurable diffractive optical elements, having on-demand practical uses, are realized in single-step all-optical structuration processes of a photosensitive re-shapable polymer film.
Evanescently Coupled Multimode Silicon Nitride Waveguides for on Chip Spectroscopy
Authors: Irvine David A. , Kilic Velat , Petrillo Keith G. , Foster Mark A. , Foster Amy C.
Published: August 2022

Integrated and evanescently coupled multimode silicon nitride waveguides hold promise for on chip sensing of optical spectra. Bidirectional evanescent coupling yields low correlation between measurements which is needed for robust reconstruction of spectra.
A Dual-Stage Photonic Integrated Circuit Spectrometer
Authors: Evans Christopher C. , Dorsey Kyle J. , Subotic Sasha , Cwik Michal , Young Brandon D. , Eftekhar Ali A. , Hosseinnia Amir H. , Adibi Ali , Hensley Joel M.
Published: August 2022

We present a photonic integrated circuit spectrometer that cascades an arrayed-waveguide grating with a series of coupled-resonator optical waveguide filters to achieve a spectral resolution of 0.5 nm over a bandwidth from 805–930 nm.
Photonic integrated erbium-doped silicon nitride amplifiers with intense net gain
Authors: Liu Yang , Qiu Zheru , Ji Xinru , He Jijun , Riemensberger Johann , Raja Arslan S. , Wang Rui Ning , Liu Junqiu , Kippenberg Tobias J.
Published: August 2022

We demonstrate photonic integrated erbium-implanted Si3N4 amplifiers that enable record-high 26 dB on-chip net gain and saturation output power exceeding 25 mW, providing an active Si3N4 nanophotonic platform for integrated lasers, LiDARs and mi-crowave photonics.
Wideband Transmission in Single and Multi-core Fibers
Authors: Puttnam Ben , Luis Ruben , Rademacher Georg , Awaji Yoshinari , Furukawa Hideaki
Published: August 2022

Utilizing the additional transmission bandwidth of the S-band can add hundreds of WDM channels and lead to record fiber throughputs, but adoption lower wavelength bands may also allow MCFs with lower crosstalk and increased spatial density.