bluuebunny/crossref_metadata_2025 huggingface dataset:
Bright Heralded Single-photon Source with Ideal Purity Based on Silicon Chip via Spontaneous Four Wave Mixing
Authors: Wang Haoyang , Yuan Huihong , Zeng Qiang , Zhou Lai , Ma Haiqiang , Yuan Zhiliang
Published: September 2024

We derive an explicit theoretical limit of purity for any heralded single-photon source, and subsequently demonstrate the ideal purity on an unprecedentedly bright source exceeding 1.5 MHz coincidence rate with the lowest
g
h
(2)(0) value of 0.000945.
Mid-infrared Photonic Integration and Nonlinear Optics on InP
Authors: Belkin Mikhail A.
Published: September 2024

Due to its transparency and intersubband devices compatibility, InP platform is well-suited for mid-infrared photonic integration. We characterize mid-infrared losses and nonlinearities, demonstrate supercontinuum generation, and present functional components and device integration on this platform.
Microwave resonator enhanced on-chip electro-optic frequency comb generation
Authors: Chen Zhaoxi , Zhang Yiwen , Feng Hanke , Zhang Ke , Wang Cheng
Published: September 2024

We realize a microwave resonator-enhanced electro-optical frequency comb generator with >4.6dB microwave power reduction compared with lumped capacitive electrodes. We generate up to 93 comb lines spaced at 25GHz at moderate microwave power of 26.6dBm.
Sub-micron Domain Control of Lithium Niobate Thin Film for Backward Second-harmonic Generation
Authors: Yang Fengyan , Lu Juanjuan , Shen Mohan , Yang Guangcanlan , Tang Hong X.
Published: September 2024

we demonstrate reliable electric control of periodic domains in thin film lithium niobate with poling period down to 370 nm, thus realizing first-order quasi-phase-matched backward SHG which exhibits an exceptional efficiency of 1400%/W/cm2.
Second Harmonic Generation in Bulk AgScP2S6 and CuScP2S6 Metal Thiophosphates
Authors: Siebenaller Ryan P. , Noor Mohamed Yaseen , Fisher Adam , Kuz Conrad , Susner Michael A. , Chowdhury Enam
Published: September 2024

Metal thiophosphates (MTPs) AgScP2S6 and CuScP2S6 are characterized structurally and optically using polarization dependent transmission second harmonic generation (SHG), c-stacking X-ray diffraction (XRD), and single crystal XRD. Notable SHG signal from centrosymmetric CuScP2S6 is seen.
Bandwidth Enhancement of Silicon Thermo-Optic Phase Shifter with Electronic-Photonic Co-Design
Authors: Han Keyi , Lu Liangjun , Li Xin , Liu Chuxin , Xu Weihan , Guo Yuyao , Chen Jianping , Zhou Linjie
Published: September 2024

Based on a resistance-capacitance equalizer, we demonstrated a silicon thermo-optic phase shifter with a rise time of 2.3 µs and a modulation bandwidth of 250 kHz, offering 10 times enhancement over the original standalone implementation.
Optical Convolution Processing Using an On-Chip Thin-Film Lithium Niobate Ring Modulator
Authors: Deng Zhaoang , Li Zhenhua , Gan Ranfeng , Chen Zihao , Liu Liu , Liu Jie , Yu Siyuan
Published: September 2024

A novel optical accelerator scheme capable of convolution processing is proposed, utilizing a single on-chip thin-film lithium niobate ring modulator. Experimental validation of the proposed scheme is conducted through image edge extraction demonstrations.
Photonic Extreme Learning Machine by Using Intermodulation in a Mach-Zehnder Modulator Driven by Subcarrier Signal
Authors: Tanaka Hideaki , Kan Takashi , Takahashi Hidenori
Published: September 2024

We propose a simple scheme that leverages the intermodulation signals in a modulator driven by subcarriers as a neural network to increase input dimension. We experimentally achieved an MNIST classification accuracy as high as 97.29%.
Impact of the Gain Recovery Time of a QD-SOA on Transmission System Amplification
Authors: St-Arnault Charles , Bernal Santiago , Gutiérrez-Castrejón Ramón , Berikaa Essam , Wei Zixian , Rautert Janina , Poltavtsev Sergey V. , Gubenko Alexey E. , Belykh Vasilii V. , Mikhrin Vladimir S. , Kovsh Alexey R. , Plant David V.
Published: September 2024

We experimentally evaluate the influence of the gain recovery time of a QD-SOA on IM/DD in the O-band and establish a way to estimate the gain recovery time of an SOA.
Enhancement of TMD Exciton Resonances using Plasmonic Resonators
Authors: Abudayyeh Hamza , Liu Zhida , Yao Kan , Zheng Yuebing , Li Xiaoqin
Published: September 2024

Samples of monolayer, bilayer, trilayer and 4-layer WS2 encapsulated between two layers of hBN are embedded into plasmonic patch antennas. The resulting low mode volume leads to 1000-fold enhancement of dark resonances in the material.
Anomalous Dispersion in Coupled Surface Plasmons and Excitons
Authors: Hesami Leila , Chowdhury Md G. R. , Noginov M. A.
Published: September 2024

We studied dispersion in Rhodamine laser dyes (in the Kretschmann geometry) and found multi-branch “staircase” dispersion curves, emergence of the new dispersion “fork” branch, and effect of the energy transfer on the strong coupling.
Nanoscaled Vibrational Strong Coupling with Atomically Thin Mid-Infrared Resonances
Authors: Weng Chi Ting , Liaw Jia-Wun , Yang Chun-Yu , Liu Jui-Nung
Published: September 2024

We numerically and analytically demonstrate that plasmonic graphene nanoribbons (GNRs) can serve as an atomically thick open-nanocavity for vibrational strong coupling (VSC), exhibiting an extraordinary cooperativity in the nanoscale.
Light Emission Based on Bound States in the Continuum
Authors: Farazi Soheil , Tadigadapa Srinivas
Published: September 2024

This paper presents a versatile platform for mid-infrared light emission utilizing various types of bound states in the continuum, enabling chip-scale coherent light emitters crucial for applications like optical communication and sensing.
Impact of Mechanical Strain on Auger Recombination in InGaAs/InP
Authors: Simmons Y. Lange , Dickson Killian , Ricks Amberly F. , Skipper Alec M. , Briggs Andrew F. , Muhowski Aaron J. , Bank Seth R. , Gopinath Juliet T.
Published: September 2024

We characterized the impact of mechanically-applied biaxial strain on Auger recombination in InGaAs quantum wells using time-resolved photoluminescence. Our results support that Auger recombination is reduced by mechanical distortion introduced by strained-layer epitaxy.
Low Index Metasurface Design for Active and Passive Photonic Applications
Authors: Asad Muhammad Saad , Alam M. Z.
Published: September 2024

We propose reflective metasurface designs based on metal cavity filled with low index medium. We investigate the applicability of this design for various applications including biosensing and active photonics.
Subsurface Spectroscopy Inside of Heterogeneous Materials Using Self-healing Optical Beams
Authors: Anderson Benjamin R. , Gese Natalie , Eilers Hergen
Published: September 2024

We compare the performance of Gaussian and Self-healing (Airy and Bessel) optical beams for subsurface spectroscopy inside of heterogeneous materials. We find that self-healing beams do provide improved performance over Gaussian beams.
Demultiplexing of OAM-coded signal using hybrid optical-electronic convolutional neural network
Authors: Ye Jiachi , Cai Qian , Jahannia Belal , Altaleb Salem , Kang Haoyan , Patil Chandraman , Wang Hao , Heidari Elham , Dalir Hamed
Published: September 2024

Here we propose a hybrid optical-electronic convolutional neural network based on 4f system to demultiplex OAM-coded signal under simulated atmospheric turbulence condition. Results show the classification accuracy of 70.63% under strong turbulence scenario.
Real-time monitoring of pedestrian activities with sub-meter resolution using underground telecom cable
Authors: Zhang Jialei , Sun Jianhui , Ye Zhenyu , Zhang Shibo , Wu Yingqing , Qi Yifei , Rao Yunjiang , Wang Zinan
Published: September 2024

We present the first field trial of real-time distributed sensing of pedestrian activities with sub-meter resolution using in-service telecom cable, while the appealing details captured by DAS showcases its immense potential for smart city.
Nanoscale Absolute Grating Encoder with Wide Range Directional Discrimination Based on Asymmetric Code and Hybrid Positioning
Authors: Wang Shengtong , Luo Linbin , Cao Feifan , Li Xinghui
Published: September 2024

We propose an absolute positioning grating encoder with directional discrimination ability from coarse range to precision range, and the positioning accuracy can reach 10 nm for a motion range of several tens of millimeters.
Optical Spectroscopy Unravels the Spin-Lattice Interplay in Doped NiPS3 Systems
Authors: Trinh Tai Cong , Basnet Rabindra , Chandrasekaran Vigneshwaran , Pettes Michael , Rao Rahul , Jones Andrew , Hu Jin , Htoon Han
Published: September 2024

Our PL study revealed a strong suppression of the ultrasharp excitonic emission in Ni1- xMnxPS3 with the increase of Mn impurity concentration x. Additionally, the suppression of the two-magnon scattering peak under Raman spectroscopy, further highlights the intricate interplay between impurity-induced lattice distortion and the spin order of NiPS3.
Non-contact Burst Monitoring via Dual Fiber Fabry-Perot Interferometers
Authors: Wang Ruixuan , Homa Daniel , Dejneka Zach , Theis Logan , Wang Anbo , Pickrell Gary
Published: September 2024

Introducing a dual Fabry-Perot sensor system for non-contact pipe burst monitoring. With a lab-standard dual-ferrule probe, we measure absolute distance from the pipe and differentiate bursting events from absolute drifting through relative measurements.
Optimizing the denoising method of DAS system based on point-backscattering-enhanced fiber
Authors: Li Caiyun , Zheng Hongkun , Ma Lingmei , Zhu Chen , Zhuang Yiyang , Peng Wei , Rao Yun-jiang
Published: September 2024

A stable and low noise demodulation for PBSEF based DAS system is explored by theoretical and experimental analysis. The results show that, direct-average and weighted-average, for suppressing the noise level of DAS and the optimal parameters are investigated.
Secure Satellite Time Synchronization Based on Chip Scale Atomic Clock Assisted GNSS Receiver
Authors: Gui Sibo , Wang Junchao , Li Zhaolong , Zhao Jianye
Published: September 2024

The paper introduces CSAC as a viable alternative, explores their potential in satellite time synchronization, and presents a neural network approach to classify CSAC's clock differences as unique fingerprints of GNSS receivers.
Sagnac ring for self-injection locking laser and microcomb generation
Authors: Shen Bitao , Zhang Xuguang , Wang Yimeng , Tao Zihan , Chang Huajin , Li Wencan , Zhou Yan , Ge Zhangfeng , Chen Ruixuan , Bai Bowen , Shu Haowen , Chang Lin , Wang Xingjun
Published: September 2024

We propose the Sagnac ring with wide-band, reliable reflection f or self-injection locking, achieving lasers with an intrinsic linewidth as low as 24.38 Hz and demonstrating mode-locked microcomb generation at different resonances.
Single-microresonator-based dynamic photonic molecule switch
Authors: Tao Zihan , Shen Bitao , Li Wencan , Xing Luwen , Wang Haoyu , Wu Yichen , Tao Yuansheng , Zhou Yan , He Yandong , Peng Chao , Shu Haowen , Wang Xingjun
Published: September 2024

We propose a dynamic on-chip photonic molecule switch in an ultra-compact multimode silicon microring, allowing for flexible either nonlinear control or loss reduction.

This strategy leads to a record low-loss transition (Qi ~ 10 million) under hundred-GHz FSR level.
A Simplified Setup for Characterizing the Beam Propagation Parameter of On-Wafer Vertical Cavity Surface Emitting Lasers
Authors: Mihalik Mark A. , Ingold Kirk A. , Raftery James J. , North William
Published: September 2024

Beam propagation measurement is typically done parallel to the optical table. We report on an improved setup that reduces manual manipulation and accounts for device rotation for measurements taken perpendicular to the optical table.
Room-temperature continuous-wave lasing based on a two-dimensional erbium compound
Authors: Yao Shipeng , Sun Hao , Gan Lin , Wu Jinhua , Hou Zhangyu , Ning Cun-Zheng
Published: September 2024

We successfully grow 2D layered ErOCl single crystals on silicon substrates. Combined with photonic crystal microcavity, continuous-wave lasing with an ultra-low threshold at room-temperature was achieved at 1.5 μm.
Tailor Bragg grating designs for specific laser applications via coupled-mode-theory fit and machine learning
Authors: Mahani M. R. , Rahimof Y. , Nechepurenko I. A. , Wicht A.
Published: September 2024

Here we introduce efficient machine learning models trained on a 3D FDTD simulation-based database to predict Bragg grating characteristics from the main and the side lobes of reflectance spectra fitted by coupled mode theory.
Ultra-High Efficiency Fully-Etched Grating Coupler for Transverse Magnetic Mode with Al Mirror
Authors: Laila Alif Muthali , Labbe Fabien , Yu Yonghe , Adcock Jeremy C. , Ding Yunhong
Published: September 2024

We have designed and fabricated aluminum mirror assisted fully-etched photonic crystal grating couplers for transverse magnetic light coupling on the 250 nm silicon-on-insulator platform, showing ultra-high coupling efficiency of −1.2 dB at different waveband couplers.
Spin-on Dopant Based Fabrication Methodology of Integrated Photonic Devices
Authors: Şahin Alper , Akdeniz Onur , Kocaman Serdar
Published: September 2024

Sparse schedules associated with ion implantation impede the development of active optical devices. This study presents a process based on spin-on dopants that allows in-house fabrication of active devices.
Strong Third-order Nonlinearity in Silicon-rich Amorphous Silicon Carbide Integrated Platforms
Authors: Lu Yaoqin , Shi Xiaodong , Afridi Adnan Ali , Chaussende Didier , Rottwitt Karsten , Ou Haiyan
Published: September 2024

We experimentally demonstrate efficient four-wave mixing i n silicon-rich amorphous silicon carbide waveguides, and characterize its nonlinear refractive index, which is 6.83 × 10
−
18 m2/W, one order of magnitude higher than crystalline silicon carbide.
Compact Circuit Models for Nanoantenna-Based Petahertz Electronics
Authors: Bechhofer Adina R , Nirantar Shruti , Daniel Luca , Berggren Karl K. , Keathley Phillip D.
Published: September 2024

We developed a circuit model for petahertz electronic nanoantenna networks. This approach enables fast and scalable simulations of the the attosecond to femtosecond charge dynamics within the nanoantenna networks. We use the model to explore designs for a memory cell and shift register.
Analysis of Uniform Waveguide Bragg Gratings in a Silicon Nitride Platform
Authors: Tosi Mauricio , Bustillos Marvin , Kaushal Saket , Costanzo-Caso Pablo A. , Azaña José
Published: September 2024

We study the implementation of photonic filters based on waveguide Bragg gratings using a silicon nitride platform. Excellent agreement in the measured coupling coefficient with theoretical predictions is observed.
Significant substrate leakage loss reduction with hybrid Si-SiN waveguides on a monolithic SiPh platform
Authors: Bian Yusheng , Lee Won Suk , Chandran Sujith , Aboketaf Abdelsalam , Hirokawa Takako , Dezfulian Kevin , Sorbara Massimo , Banihashemian Fahimeh , Mosleh Salman , Najafi Arman , Liu Qidi , Gong Ming , Rakowski Michal , Ritchie Chris , Sporer Ryan , Zhang Michelle , Song Shenghua , Wong Helen , Dasgupta Arpan , Chowdhury Zahidur , Gallagher Ryan , Lee Jae Gon , Tinkler Janet , Gifford George , Gupta Vikas , Yu Anthony , Giewont Ken , Letavic Ted
Published: September 2024

We present hybrid Si-SiN waveguides as a solution to mitigate substrate leakage in a monolithic SiPh platform. Experimental results show an ~80% reduction in TM-waveguide-loss (leading to ~0.3 dB/cm-attenuation) and a 9-fold decrease in TM-bend-loss.
High-Q Microdisk Resonator on Aluminum Nitride Photonics Platform
Authors: Li Nanxi , Tobing Landobasa Y M , Zhu Shiyang , Xue Jin
Published: September 2024

A high-Q microdisk resonator is demonstrated on aluminum nitride (AlN) photonics platform on an 8-inch silicon wafer. Multiple modes are observed from spectrum response. A loaded Q of 1.3 × 105 is also reported.
Reprogrammable Binary and Ternary Optoelectronic Logic Gates Using GaN p-n Nanowires as Photoelectrodes
Authors: Luo Yuanmin , Chen Wei , Wang Danhao , Kang Yang , Liu Xin , Fang Shi , Memon Muhammad Hunain , Sun Haiding
Published: September 2024

We fabricated reprogrammable optoelectronic-logic-gates (OLGs) using GaN p-n nanowires as photoelectrodes in a photoelectrochemical environment. Reprogrammable bidirectional photocurrent enabled various binary and ternary OLGs, offering a new avenue toward next-generation logic circuits for fast data-processing.
Mode-Division Multiplexing at Visible Wavelengths
Authors: Shah Priyansh , Ben Mellouk Elias , Levine Jeremy , Mohanty Aseema
Published: September 2024

We demonstrate mode-division multiplexing at visible wavelengths (473 nm) for the first time using adiabatic mode couplers. We measure less than -15 dB and -20 dB crosstalk for TE2 and TE3 higher-order mode couplers, respectively.
Exploiting Ferroionic 2D Materials for Enhanced Electro-Optic Functionality in Silicon Photonics
Authors: Dushaq Ghada , Serunjogi Solomon , Tamalampudi Srinivasa R. , Rasras Mahmoud
Published: September 2024

We demonstrate the strong electro-refractive response of CuCrP2S6 (CCPS)-integrated SiPh microring resonators in the near-infrared wavelength. Results show significant refractive index tuning of 2.8 x10-3 RIU with low optical losses and high modulation efficiency, outperforming earlier TMDs-based phase shifters.
A High-Efficiency Grating Coupler on 220-nm SOI Platform with a Minimum Feature Size of 130nm
Authors: Wang Lihang , Qiu Jifang , Chen Yuchen , Wu Lan , Guo Hongxiang , Wu Jian
Published: September 2024

An inverse-designed dual-etched grating coupler optimized by the adjoint method is numerically demonstrated on a standard 220-nm silicon-on-insulator platform with a minimum feature size of 130nm. The coupling efficiency reaches 79.7% (−0.99dB), rendering it promising for low-cost and large-scale manufacturing by deep ultraviolet lithography.
Analysis of the Penetration Depth of Integrated Bragg Reflectors for Precise Microcavity Design
Authors: Comis Farah , Lo Mu-Chieh , Shevchenko Mykyta , Ruocco Alfonso
Published: September 2024

We examine the penetration depth of integrated Bragg gratings forming on-chip Fabry-Pérot cavities. We evaluate the microcavities’ effective length by considering its impact on the free spectral range and compare the results with theoretical predictions. © 2023 The Author(s)
Increasing the Acceptance Angle of a Resonant-Cavity Enhanced Detector Using a Confocal Microresonator
Authors: HadavandMirzaee Fatemeh , Her Tsing-Hua
Published: September 2024

We propose using a confocal microresonator to increase the angular bandwidth for resonant cavity-enhanced detectors. Our modeling demonstrates more than 10× increase in the acceptance angle compared to the conventional planar Fabry-Perot structure.
On-Chip Mid-IR Spectroscopy with Slow Light Enhanced Silicon-on-Sapphire Waveguide
Authors: Jain Sourabh , Hlaing May H. , Fan Kang-Chieh , Midkiff Jason , Chen Ray T.
Published: September 2024

An engineered slow-light enhanced 2D-PCW on the silicon-on-sapphire platform is proposed as a Mid-IR on-chip spectrometer. Theoretical calculation exhibits strong-mode confinement in the air-guided holey-slotted defect-waveguide with high-group-index of 69 around the carbon-monoxide absorption wavelength.
Sixteen-channel 2.5 GHz-spaced wavelength (de)multiplexer on SOI for microwave photonic applications
Authors: Chen Chih-Hsien , Hung Yung-Jr
Published: September 2024

The signatures of high channel resolution (2.5 GHz), high channel count (16), compact size (0.187 cm2), low crosstalk (-15 dB), and simplified control (less phase shifters) make the MZI-based optical channelizer a promising solution for frequency measurement applications.
Low-Loss 3D Fiber-to-Chip Couplers for Polymer Waveguides
Authors: Chakraborty Trisha , Kudalippalliyalil Ramesh , Murphy Thomas E. , Grutter Karen E.
Published: September 2024

We designed and demonstrated 3D polymer coupler structures to adiabatically couple light into polymer waveguides. We measured a coupling loss of 2.1 dB per coupler facet around 1550 nm.
Chip-integrated interposer for extended-cavity diode lasers with fiber-Bragg gratings
Authors: Winkler Lisa V. , Neijts Govert , van Rees Albert , Schrinner Philip P. J. , Hoekman Marcel , Dekker Ronald , N. Adriano Ricardo do , van der Slot Peter J. M. , Nölleke Christian , Boller Klaus-J.
Published: September 2024

We present a novel approach to Bragg-fiber extended diode lasers by using an integrated waveguide circuit as interposer. The interposer suppresses undesired ASE by more than 20 dB compared to previous designs.
Monolithically Integrated Tunable Inductive Termination for Equalizing Traveling-Wave Mach-Zehnder Modulators
Authors: Liu Junqian , Wissing Aaron , Andrade Hector , Coldren Larry , Buckwalter James F. , Schow Clint L.
Published: September 2024

Silicon traveling-wave Mach-Zehnder modulators are monolithically integrated with tunable inductive terminations for low-power, variable equalization circuits. Equalizing subthreshold forward-biased modulators doubled EO bandwidth for 56 Gbit/s transmission below KP4-FEC thresholds while consuming 360 fJ/bit.
Time-Series Prediction Tasks with a Small-Scale Integrated Photonic Reservoir
Authors: Ding Baoqin , Pei Li , Bai Bing , Bai Bowen , Sui Juan , Wang Jianshuai
Published: September 2024

The small-scale integrated photonic reservoirs excel in binary tasks but encounter challenges in broader predictions. This article achieves superior prediction performance by refining both algorithmic and input strategy perspectives, utilizing a 32-node integrated photonic reservoir.
Ultra-Wideband Radiofrequency Self-Interference Canceller Using Silicon Photonics Switched Delay Lines
Authors: Idres Samer , Hashemi Hossein
Published: September 2024

We experimentally demonstrate radiofrequency self-interference cancellation across an instantaneously ultra-wide bandwidth using 8-bit switched low-loss optical delay-line implemented in a commercial silicon photonics foundry. Cancellation of 14 dB is achieved for 8 GHz UWB signal.
High-Fidelity WDM-Compatible Photonic Processor for Matrix-Matrix Multiplication
Authors: Ikeda Kohei , Nakajima Mitsumasa , Kita Shota , Shinya Akihiko , Notomi Masaya , Hashimoto Toshikazu
Published: September 2024

We experimentally demonstrate an 8 × 8 MZI-mesh photonic processor using silica-based waveguide technology. An accurate implementation of unitary matrices with high fidelity >0.96 over C-band was achieved, enabling matrix-matrix operation using wavelength multiplexing.
Compact Low-Loss 20x4 Switch for ROADM Applications
Authors: Zhu Xiaotian , Wang Xiang , Xiao Mingzhu , Zhao Chunfei , Wang Luyi , Davidson Roy , Chu Sai T. , Little Brent E.
Published: September 2024

We report on a compact 20x4 optical switch using HDSG platform. Fiber-to-fiber losses are below 2 dB and 3.5 dB for express and drop channels while PDL is below 0.2 dB across the C band.
Experimental Demonstration of Silicon Photonic Reservoir Computing with a Multimode Racetrack-Loop Device
Authors: Kan Takashi , Heinsalu Siim , Tanaka Hideaki , Oshima Hirotaka , Takahashi Hidenori , Tsuritani Takehiro , Utaka Katsuyuki , Suzuki Masatoshi
Published: September 2024

We demonstrate a reservoir computing operation with a silicon multimode loop waveguide device. Prediction performances for the NARMA3 and NARMA5 tasks are confirmed with normalized mean square errors of 3.85×10-3 and 1.93×10-2, respectively.
Chip Scale Bonding For Heterogeneous Integration of Lithium Niobate on Low Loss Passive Silicon Nitride
Authors: Zhou Vivian , Chaitanya Shriddha , Datta Ipshita , Lipson Michal
Published: September 2024

We demonstrate chip-scale heterogeneous integration of lithium niobate on low loss silicon nitride microrings and measure a loss of 1.07 ± 0.05 dB/mm for the hybrid mode.
A High-Speed Automatic Polarization Controller based on the Silicon Photonics Platform
Authors: Wang Weiqin , Zhou Ziwen , Zeng Yifan , Peng Wenyi , Wu Hao , Ding Yunhong , Yan Siqi , Tang Ming
Published: September 2024

We proposed an automatic polarization controller based on a novel thermal phase tuning structure on the silicon platform, with a polarization control speed of up to 20 krad/s, which is the fastest reported silicon-based device.
Power Handling in 3D Polymer Fiber-to-Chip Couplers at Visible Wavelengths
Authors: Paterson Cormac , Jha Pushkar , Turner Michael , Shah Priyansh , Mohanty Aseema
Published: September 2024

We investigate the power handling capabilities of 3D polymer couplers for fiber-to-chip packaging at blue and red wavelengths. We show time-dependent degradation of couplers for blue that is not present at red wavelengths.
3D Electronic Photonic Integrated Circuits (3D EPICs): Co-Design and Co-Integration for Optimal Performance at Scale
Authors: Ling Yi-Chun , Lee Shun-Hung , Saleque Ahmed Mortuza , Zhang Yichi , Ben Yoo S. J.
Published: September 2024

We discuss the impact of the 3D photonic integrated circuits (PICs), review enabling technologies including optical through-silicon-vias, and cover co-integration and co-design of 3D Electronic-Photonic-Integrated-Circuits (3D EPICs).
Dispersive-wave-agile optical frequency division
Authors: Ji Qing-Xin , Zhang Wei , Liu Peng , Guo Joel , Jin Warren , Peters Jonathan , Wu Lue , Feshali Avi , Paniccia Mario , Ilchenko Vladimir , Bowers John , Matsko Andrey , Vahala Kerry
Published: September 2024

Microwave signal generation with record-low phase noise is demonstrated using a microcomb. The results use 2-point optical-frequency-division with a frequency-agile dispersive wave as a spectral endpoint. The compact all-solid-state reference cavity features a record Q-factor.
Isolator-free data transmission using a feedback tolerant heterogenous III-V/Si quantum dot laser
Authors: Wu Xinru , Huang Duanni , Su Guan-Lin , Liu Songtao , Yerkes Shane , Frish Harel , Rong Haisheng
Published: September 2024

We demonstrate an isolator-free 128 Gb/s PAM4 data transmission using a silicon microring modulator and a heterogeneous III-V/Si quantum dot laser in the presence of optical feedback of up to -13dB.
Observation of Floquet Chern Insulator of light in nonlinear photonic crystal slabs
Authors: Jin Jicheng , He Li , Lu Jian , Chang Lin , Shang Chen , Bowers John , Mele Eugene J. , Zhen Bo
Published: September 2024

We observed Floquet Chern insulator of light based on periodically driven nonlinear photonic crystal slabs. Energy gaps with non-trivial topology are extracted where photonic Floquet bands cross, indicating strong Floquet couplings.
Localized Resonant Phonon Polaritons in Biaxial Particles
Authors: Beitner Daniel , Farhi Asaf , Nitharwal Ravindra Kumar , Dixit Tejendra , Beitner Tzvia , Richter Shachar , Krishnan SivaRama , Suchowski Haim
Published: September 2024

We observe for the first time localized directional phonon polaritons of biaxial nanoparticles, which were synthesized via a novel method of femtosecond-pulse-laser ab-lation. We derive a complete eigenmode theory for anisotropic particles, with outstanding agreement.
Breaking the trade-off between spatial resolution and sensing resolution in optical frequency domain reflectometry-based distributed sensing
Authors: Zhang Zhaopeng , Peng Wei , Ma Lingmei , Zhu Chen
Published: September 2024

Empowered by a data and physics-driven neural network, an OFDR-based high-performance distributed sensor is experimentally validated with sub-millimeter spatial resolution and sub-µε sensing resolution over a long sensing range of 140 m.
Quantifying Uncertainty for a Bayesian Laser Phase Noise Measurement Method
Authors: Riebesehl Jasper , Heebøll Holger R. , Razumov Aleksandr , Galili Michael , Zibar Darko
Published: September 2024

We quantify the uncertainty of a Bayesian filtering method to measure phase noise below the measurement noise floor. With 95% certainty phase noise is estimated to be ∼ 7.6 dB below the noise floor.
When does interferometric imaging achieve superresolution?
Authors: Grace Michael R
Published: September 2024

Multi-aperture imaging is often said to enable equivalent spatial resolution to a single aperture spanning the interferometric baseline. We quantitatively evaluate this statement and identify conditions when interferometry achieves functional superresolution compared to monolithic imaging.
Spatially and Spectrally Selective Excitation of Magnetic Dipole Transitions in Eu3+ Doped Yttrium Oxide
Authors: Gangrskaia Elizaveta , Bellissimo Alessandra , Shumakova Valentina , Alex Sarah Pulikottil , Bugár Ignác , Grünewald Lorenz , Mai Sebastian , Schachinger Thomas , Pysz Dariusz , Buczyński Ryszard , Baltuška Andrius , Pugžlys Audrius
Published: September 2024

Combining Stimulated Raman Scattering and spectral focusing, we generate narrowband tunable pulses for selective excitation of electric or magnetic dipole transitions in FIB-fabricated Eu3+Y2O3 nanostructures. Spatial electivity is enhanced by implementing azimuthally polarized beams.
Temperature-Dependent Terahertz Spectroscopy of Saline Water and Ice
Authors: Woodwyk Seth M. , Gyawali Sunil , Loh Harrison A. , Forcherio Gregory T. , Bristow Alan D.
Published: September 2024

The complex dispersion for saline, based on a sea-water mix, is measured at terahertz frequencies from liquid at room temperature down through the identifiable freezing point transition to the lowest report temperature on Earth.
A Time-Reversal-Symmetric Laser in the Polarization Space
Authors: Danve Marie-Céline Gauthier , Rojas Daniel , Lapointe Shawn , Bisson Jean-François
Published: September 2024

The concept of parity-time reflection symmetry can be generalized to any antiunitary operator. Using anisotropic thin films made by glancing angle deposition, we designed and characterized a time-reversal symmetric solid-state laser in the polarization space.
Effect of Configuration Statistics on the Spectral Properties of Random Arrays of Particles
Authors: Audhkhasi Romil , Zhelyeznyakov Maksym , Brunton Steven , Majumdar Arka
Published: September 2024

We investigate correlations between the spectral responses of one- and two-dimensional random arrays of particles and their configuration statistics. We exploit these correlations for spectral prediction of such complex systems in the visible wavelength range.
A Secondary Grating Metasurface based on Guided-Mode Resonance for Highly Sensitive Biochemical Sensing
Authors: Ma Lijun , Li Liye , Sun Hongshun , Cao Yunhao , Chen Yusa , Wu Wengang
Published: September 2024

We present a secondary grating metasurface based on guided-mode resonance (GMR) which significantly enhances refractive index (RI) sensitivity compared to the traditional dielectric metasurface by up to 5.8 times.
Implementing the Geometric Phase for Designing the Axially Asymmetric Metasurface Element
Authors: Sultana Hosna , Weng Binbin
Published: September 2024

Designing a metasurface with appropriate phase correlation between light's linear and circular polarization states is challenging. The focus here is obtaining the geometric phases from different geometric shapes for optimum dielectric metasurface design.
Stokes singularity lattice formation using phase ramps
Authors: Gangwar Kapil K. , Bansal Sarvesh , Senthilkumaran P.
Published: September 2024

An approach for generating Stokes singularity lattices utilizing a phase ramp structure within a polarization interferometer is presented here. Simulated results are presented to elucidate and illustrate the proposed concept.
Self-synchronized Two-color Fiber Laser System for Coherent Anti-Stokes Raman Scattering Microscopy in Cell-silent Regime
Authors: Zhou Meng , Wen Xiaoxiao , Kong Cihang , He Hongsen , Qiao Tian , Ran Qiao , Zheng Chaogu , Wong Kenneth K. Y.
Published: September 2024

We present a self-synchronized two-color fiber laser system, generating Stokes beam at 1057 nm and pump beam at 860 nm. The system can realize coherent anti-Stokes Raman scattering microscopy in cell-silent regime around 2100 cm-1.
Two-photon Polymerization Assisted Fabrication of Polymeric Zone Plates
Authors: Singh Gaurav Pratap , Jaiswal Arun , Rani Sweta , Palwe Ajinkya , Soni Himanshu , Soni Twinkle , Saxena Sumit , Shukla Shobha
Published: September 2024

We demonstrate the implementation of two-photon lithography to fabricate zone plates in a polymer matrix. This technique facilitates creation of geometries with tailored responses by controlling the dimension and refractive index of the polymerized features.
Fabrication of fluorescent biopolymeric micro/nanostructures using femtosecond laser lithography
Authors: Suryawanshi Tejas , Singhal Aman , Saxena Sumit , Majumder Abhijit , Shukla Shobha
Published: September 2024

Biopolymeric micro/nanostructures are of key importance in biomedical field. Here we demonstrate, femtosecond laser assisted fabrication of fluorescent biopolymeric micro/nanostructures on gelatin. These structures were morphologically characterized and showed features as small as 550-700nm.
Fourier Series Expansion with Correction Terms: An Innovative Algorithm for ECG Signal Analysis
Authors: Lee Hsin-Jung , Lee Cheng-Che , Yang Yi-Min , Lee Wei-Yu , Kuan Chieh-Hsiung
Published: September 2024

This study presents an advancement in signal processing for ECG signal analysis. By choosing the correct frequency and boundary conditions, the modified Fourier series expansion with correction terms can enhance the accuracy and reliability of signal reconstruction, enhancing signal accuracy for better medical diagnoses and treatment.
Detection bandwidth reduction of the dual-comb parallel FMCW LiDAR based on frequency matching
Authors: Wang Long , Shang Yaxin , Chen Xiaoen , Hu Liang , Chen Jianping , Jiao Wenhai , Wu Guiling
Published: September 2024

A frequency matching algorithm is proposed to reduce the detection bandwidth of the dual-comb parallel FMCW LiDAR system. The detection bandwidth can be reduced by one order of magnitude, significantly saving the system cost.
Two-stage deep learning pipeline for automated mineral classification in planetary Raman spectra
Authors: Ramanan B. , Bhuvaneswari S. , Upadhya Prashanth C. , Venkateswaran R. , Sriram K. V.
Published: September 2024

A novel approach is employed to improve mineral classification in planetary Raman spectra using a two-stage deep learning pipeline utilizing convolutional denoising autoencoders for pre-processing and convolution neural networks to classify minerals.
Characterization of the Pound-Drever-Hall Feedback Loop in an Ultra-Stable Laser System
Authors: Ji Wen-Chao , Wang Bo-Wei , Hu Yi , Cui Xing-Yang , Xu Ping , Jiang Xiao , Dai Han-Ning , Chen Yu-Ao
Published: September 2024

In this paper, the transfer function of the Pound-Drever-Hall feedback loop in an ultra-stable laser system is comprehensively measured and verified, and then a noise analysis is performed.
Utilizing a State of Polarization Change Detector and Machine Learning for Enhanced Security in Fiber-Optic Networks
Authors: Tomasov Adrian , Dejdar Petr , Munster Petr , Horvath Tomas
Published: September 2024

The paper presents a novel method for securing fiber-optic infrastructures using a state of polarization analyzer combined with machine learning algorithms. The proposed system detects vibrations indicative of security breaches, achieving an F1-score above 95.65 %.
Advances in Highly Sensitive D-shaped Optical Filter Using Soft Film Bragg Grating Techniques
Authors: Lee Hsin-Jung , Luo Yu-Wen , Ye Yu-Cheng , Chu Li-ling , Chuang Wei-Ching , Lee Wei-Yu
Published: September 2024

This work achieved a highly sensitive D-shaped fiber optical filter by soft film Bragg grating techniques and Polydimethylsiloxane master mold. The D-shaped fiber covered by a polymer Bragg grating plate with a refractive index of 1.512 demonstrated a reflection wavelength of 1547.6 nm and an optical power of 8.3 dB.
Multiphoton Multidimensional Entanglement Based on Graph Theory
Authors: Bao Jueming , Fu Zhaorong , Pramanik Tanumoy , Mao Jun , Chi Yulin , Cao Yingkang , Zhai Chonghao , Mao Yifei , Dai Tianxiang , Chen Xiaojiong , Jia Xinyu , Zhao Leshi , Zheng Yun , Yang Yan , Tang Bo , Li Zhihua , Luo Jun , Wang Wenwu , Peng Yingying , Liu Dajian , Dai Daoxin , He Qiongyi , Muthali Alif Laila , Oxenløwe Leif K. , Vigliar Caterina , Paesani Stefano , Hou Huili , Santagati Raffaele , Silverstone Joshua W. , Laing Anthony , Thompson Mark G. , O’Brien Jeremy L. , Ding Yunhong , Gong Qihuang , Wang Jianwei
Published: September 2024

We demonstrate the capability of graph theory scheme to realize complex multiphoton multidimensional state. We show the generation of quantum states based on graph theory was realized by the reconfigurable integrated quantum chip. The 4-photon 3-dimensional GHZ state was generated and verified and manipulated for the first time.
Quantification of pulse train instabilities in mode-locked quantum-dot laser diodes
Authors: Gomes Tiago dos Santos , Alonso Benjamín , Crespo Helder , Cataluna Maria Ana
Published: September 2024

We have quantified pulse train instabilities in mode-locked laser diodes, using a highly-sensitive dispersion-scan setup with the self-calibrating retrieval algorithm. We investigated the influence of operating bias conditions on pulse instabilities from quantum-dot lasers.
10 GHz Low Divergence Angle Mode-Locked Lasers with Ultralow Timing Jitter through Injection-Locking Techniques
Authors: Al-Rubaiee Mohanad , Ye Shengwei , Yuan Bocheng , Fan Yizhe , Marsh John H. , Hou Lianping
Published: September 2024

A 1.55 μm 10 GHz low divergence passively mode-locked laser was stabilized by injection locking, achieving a sub-hertz RF linewidth and a 63 fs timing jitter, establishing it as a highly stable optical clock source.
Coherent High-power Pulsing in a Gain-switched Array of Laser Diodes with Filtered Feedback
Authors: Maldonado-Castillo L. E. , Spitz O. , Koyu S. , Berrill M. , Braiman Y.
Published: September 2024

Optimal roundtrip cavity time in gain-switched laser diode array with filtered optical feedback is numerically investigated. Combined pulse intensity and coherence exhibit peaks located at multiples of integer and half-integer of the electrical modulation period.
Plasmon near-field coupling in a shifted-core coaxial nano-cavity pair
Authors: Ghaffari Abbas , Li Xi , Abbas Farhat , Gu Qing
Published: September 2024

We explore the near-field coupling of surface plasmons in a pair of shifted-core coaxial cavities. By shifting the cores, the electromagnetic field becomes localized in nanoscale regions, leading to significant nanofocusing and splitting of modes.
1390nm Dilute Nitride VCSELs on 150mm GaAs
Authors: Obuseli I. F. , Allford C. P. , Gillgrass S. , Clark A. , Nunna K. , Davies J. I. , Smowton P. M.
Published: September 2024

The first growth and characterization of 1 50mm GaAs based dilute nitride VCSELs emitting in the 1390nm range is reported. Threshold currents (1.78±0.24)mA and emission spectra (1392.53±2.02)nm have been measured for 5µm oxide aperture devices.
Inverse Design of All-dielectric THz Metasurface for Long Depth of Focus with Uniform Intensity
Authors: Nam Yujin , Lee Dongyoung , Kyoung Jisoo
Published: September 2024

Large depth of focus for THz beams is crucial for 6G communications. An inverse design method was employed to create all-dielectric THz metasurfaces with a DOF in the millimeter range, while maintaining uniform intensity distribution.
Injection-Seeded 60-GHz Bandwidth Tunable High-Frequency Backward Terahertz-Wave Parametric Oscillator
Authors: Muldera Joselito E. , Nawata Kouji , Takida Yuma , Yadav Deepika , Minamide Hiroaki
Published: September 2024

We report an injection-seeded high-frequency (~0.87 THz) backward terahertz-wave parametric oscillator with a slant-stripe-type periodically-poled lithium niobate. Substantial reduction in oscillation threshold and enhanced pump energy conversion efficiency were observed against the unseeded case.
Electromechanically Tunable Metasurface for Guided Spoof Surface Plasmon Polaritons
Authors: Franke Lars , Klingel Steffen , Rahm Marco
Published: September 2024

We report an electromechanically tunable metasurface for active manipulation of spoof surface plasmon polaritons (SSPPs). We designed a dynamic SSPP low pass filter that can be actively controlled by application of an electric bias field.
Probabilistic High Dynamic Range Preprocessing for Ptychography
Authors: Kodgirwar Shantanu , Loetgering Lars , Liu Chang , Licht Leona , Joseph Aleena , Penagos Daniel Santiago , Eschen Wilhelm , Rothhardt Jan , Habeck Michael
Published: September 2024

Fusing acquisitions by varying exposures, from under to overexposed, yields a high dynamic range image. To enhance resolution, this is often used as a preprocessing step in ptychography. Our proposed probabilistic approach models overexposure while taking into account readout noise, resulting in improved inverse modeling.
Quantitative Phase Imaging in Tissue with Gradient Retardance Optical Microscopy
Authors: Zhang Jinming , Sarollahi Mirsaeid , Vasdekis Andreas. E.
Published: September 2024

We report a cost-effective quantitative-phase imaging configuration that yields no losses in parallel imaging modalities, such as fluorescence. We validate our approach by imaging a variety of targets, including optically thick plant root tissue.
Seamlessly Converged Optical-Wireless Access Networks Using Free-Running Laser-enabled mmWave Signal Generation and RF Envelope Detection
Authors: Vallejo Luis , Jin Wei , Tang Jianming
Published: September 2024

Low-cost component-based converged optical-wireless networks without DSP at intermediate RRHs are proposed and experimentally demonstrated, supporting 1.67 Gbit/s/ch dynamic and continuous BBU-UE data flows over 50 km SSMF and 3 m 38 GHz wireless links.
Weight Clustering for Low-Complexity Time Domain-based Chromatic Dispersion Compensation in Optical Fiber Links
Authors: Gomes Geraldo , Freire Pedro J. , Prilepsky Jaroslaw E. , Turitsyn Sergei K.
Published: September 2024

We use weight clustering to reduce chromatic dispersion compensation complexity in a 16-QAM transmission across 1280 km of SSMF at 32Gbd. As non-linearity increases, we observe that fewer clusters are needed to equalize.
Constellations to Combat non-Gaussian PAM4 Noise for SiP Modulators
Authors: Weckenmann Erwan , Omidi Amir , Paquin Benoît , Zheng Zibo , Geravand Alireza , Zeng Ming , Shi Wei , Rusch Leslie A.
Published: September 2024

The use of amplification w ith s ilicon p hotonics m odulators i ncreases the achievable baud rate, but leads to non-Gaussian noise at detection. We use neural networks to optimize the constellations for the asymmetric histograms in detected symbols.
Nonlinear Interference Mitigation in Coupled Core Multi-Core Fiber using Subcarrier Multiplexing
Authors: Selmy Hossam , Carena Andrea
Published: September 2024

Nonlinear interference (NLI) is a performance limiting factor for long-haul transmission in coupled-core multi-core fiber ( CC-MCF). We p ropose t o u se subcarrier multiplexing (SCM) technique to reduce the amount of generated NLI increasing the maximum reachable distance.
Inverted pin beams for robust propagation through atmospheric turbulence
Authors: Droulias Sotiris , Loulakis Michalis , Papazoglou Dimitris G. , Tzortzakis Stelios , Chen Zhigang , Efremidis Nikolaos K.
Published: September 2024

We introduce a new class of beams the “inverted pin beams”. We show that in atmospheric turbulence inverted pin beams outperform (have reduced scintillations) other classes of beams in moderate to strong fluctuation regimes.
Laser Ablation by the Enhanced Longitudinal Electric Field of a Tightly Focused Radially Polarized Beam
Authors: Tsuru Yukine , Kozawa Yuichi , Uesugi Yuuki , Sato Shunichi
Published: September 2024

Single-shot laser ablation by the longitudinal electric field of a radially polarized beam is demonstrated. The longitudinal field can be significantly enhanced at the rear surface of a transparent material by total reflection.
Broadband frequency comb generation based on bulk χ(2) cw optical parametric oscillators
Authors: Ebrahim-Zadeh M. , Sanchez A. D. , Kumar S. Chaitanya
Published: September 2024

We present a novel approach for coherent broadband frequency comb generation based on bulk degenerate χ(2) OPOs with intracavity dispersion control and driven by continuous-wave lasers, with a temporal output corresponding to transform-limited femtosecond pulses.
Chirped pulse excitation scheme for the efficient generation of frequency multiplexed photons
Authors: motlagh Ali Binai , Wilbur Grant R. , Clarke Alison , Ramachandran Ajan , Hall Kimberley
Published: September 2024

State-inversion of multiple quantum dot (QD) single photon emitters is demonstrated using a spectrally-notched, chirped optical pulse. Simultaneous excitation of multiple QDs enables the generation of single photons at multiple frequencies, allowing high data rates for quantum communication.
Tracing the history of a photon: excitation times and group delays
Authors: Angulo Daniela , Thompson Kyle , Nixon Vida-Michelle , Jiao Andy , Steinberg Aephraim M.
Published: September 2024

Do photons decelerate in a medium due to spending time as atomic excitations? We measured the atomic excitation time for transmitted photons and found it to be the group delay, even when negative.
Higher-dimensional HOM effect and quantum state routing with directionally-unbiased linear-optical devices
Authors: Schwarze Christopher R. , Simon David S. , Osawa Shuto , Sergienko Alexander V.
Published: September 2024

A four-port beam-splitter only maps between two input and output modes. We introduce a more general four-port scatterer that supports a broader class of state transformations, enabling a higher-dimensional HOM effect and quantum state routing.
Enhanced Parallel Optoelectronic Reservoir Computation with Multi-Time-Delay Feedbacks for Chaotic Time-Series Prediction and Optical Performance Monitoring
Authors: Yuan Xin , Jiang Lin , Yan Lianshan , Li Songsui , Zhang Liyue , Yi Anlin , Pan Wei , Luo Bin
Published: September 2024

We successfully verified a multi-time-delay parallel optoelectronic reservoir for chaotic time-series prediction and optical performance monitoring. Results showed that both prediction accuracy and monitoring performance could be enhanced even in two time-delay feedbacks.
Toward High-Fidelity Ultrafast Excitation of Atoms to Rydberg States
Authors: Mahesh Tirumalasetty Panduranga , Chew Yuki Torii , Sugawa Seiji , Tomita Takafumi , Matsubara Takuya , de Léséleuc Sylvain , Ohmori Kenji
Published: September 2024

We are developing frequency conversion system using non-linear optics to generate 480 nm picosecond pulsed laser for ultrafast Rydberg excitation. This new system outperforms a previously-used commercial device in terms of pulse-to-pulse fluctuation and energy.
Stabilized Fabry-Perot Filters for Enhancing Nonclassical Correlations of Light Scattered by an Ensemble of Cold Two-Level Atoms
Authors: de Almeida A. A. C. , Marinho L. S. , Martins W. , Borges G. C. , Felinto D.
Published: September 2024

We present a design of an actively stabilized Fabry-Perot cavity to filter the biphotons generated via spontaneous four-wave mixing in cold two-level atoms. Preliminary results show that quantum correlations are enhanced within the filtered signal.
Quantum repeater scheme based on single-photon interference with mild stabilization
Authors: Yoshida Daisuke , Horikiri Tomoyuki
Published: September 2024

We propose a quantum repeater scheme based on single-photon interference, which utilizes multimode quantum memories and two-photon sources. Our proposed scheme significantly reduces stability requirements by several orders of magnitude compared to the conventional scheme.
Orbital Angular Momentum Wave-Particle Duality in a Few-Mode Optical Fiber Platform
Authors: Gómez Santiago , Spegel-Lexne Daniel , Argillander Joakim , Karlsson Hilma , Pawłowski Marcin , Dieguez Pedro R. , Alarcón Alvaro , Xavier Guilherme B.
Published: September 2024

We demonstrate wave-particle duality of orbital angular momentum (OAM) photonic quantum states in a few-mode optical fiber interferometer with a dynamic tunable beam-splitter, opening new possibilities for fundamental and practical applications using OAM photonic states.