bluuebunny/crossref_metadata_2025 huggingface dataset:
Out-Of-Equilibrium Electron Energy Loss Spectroscopy
Authors: Ruimy Ron , Lamprecht Itay , Karnieli Aviv , Sloan Jamison , Kaminer Ido
Published: July 2023

We develop the general formalism that describes the inelastic scattering of free electrons by out-of-equilibrium materials. Utilizing modulated electrons further reveals previously inaccessible information and enables direct imaging of quantum wavefunctions.
Experimental Phase Retrieval of Matter Waves
Authors: Ziv Ron , Tamura Hikaru , Sagi Yoav , Hung Chen-Lung , Segev Mordechai
Published: July 2023

We present algorithmic reconstruction of the phase imprinted on the wavefunction of 2D Bose gas from experimental in-situ and time-of-flight measurements of atom density, without interferometry.
Atomic quantum memory as a time-frequency processor
Authors: Mazelanik Mateusz , Leszczyński Adam , Lipka Michał , Parniak Michał , Wasilewski Wojciech
Published: July 2023

We introduce an atomic quantum memory with built-in spectro-temporal processing capabilities. We demonstrate temporal far-field imaging setup operating in a previously unexplored narrowband regime and show quantum-optimal measurement of frequency separation between two spectral lines.
Electron Dynamics Under an Effective Photon-Statistics Force
Authors: Tzur Matan Even , Birk Michael , Gorlach Alexey , Krüger Michael , Kaminer Ido , Cohen Oren
Published: July 2023

We predict and demonstrate a novel effective force exerted on matter when illuminated by light with non-classical photon-statistics. For squeezed-vacuum irradiation, the photon-statistics force stretches and squeezes matter wavefunctions, leading to emission of squeezed-vacuum harmonics.
Quantum interference with interlayer excitons in moiré MoSe2 homobilayers
Authors: Petrić Marko M. , Villafañe Viviana , Qian Chenjiang , Kremser Malte , Finley Jonathan J. , Müller Kai
Published: July 2023

Quantum interference is observed between direct interlayer excitons and high-lying conduction band excitons in MoSe2 homobilayers. Good agreement is found with quantum optical simulations suggesting state dressing of these excitonic species.
Physics-inspired End-to-End Deep Learning for High-Performance Optical Fiber Transmission Links
Authors: Roumpos I. , De Marinis L. , Mourgias-Alexandris G. , Kirtas M. , Passalis N. , Tefas A. , Contestabile G. , Vyrsokinos K. , Pleros N. , Moralis-Pegios M.
Published: July 2023

We experimentally demonstrate the performance improvements obtained through End-to-End Deep Learning in noise and chromatic dispersion compensation of optical fiber transmission links when incorporating a physics-inspired activation function compared to state-of-the-art ReLU configurations.
Actively mode-locked laser in nanophotonic lithium niobate
Authors: Guo Qiushi , Sekine Ryoto , Williams James A. , Gutierrez Benjamin , Gray Robert M. , Ledezma Luis , Costa Luis , Zhou Selina , Marandi Alireza
Published: July 2023

We report an electrically pumped hybrid lithium niobate/III-V actively mode-locked laser. The laser emits 4.8 ps pulses at 10.17 GHz around 1065 nm with high peak power of ∼ 1 W.
Squeezed light generation and analysis using a sub-threshold optical parametric oscillator on integrated thin-film lithium niobate photonic circuit
Authors: Park Taewon , Stokowski Hubert S. , McKenna Timothy P. , Hwang Alexander Y. , Dean Devin , Qi Luke , Celik Oguz Tolga , Ansari Vahid , Fejer Martin M. , Safavi-Naeini Amir H.
Published: July 2023

We present our recent effort towards building an integrated photonic circuitry on thin-film lithium niobate platform for squeezed state of light generation from an optical parametric oscillator.
What is New in Multimode Fibers for Space Division Multiplexing?
Authors: Sillard P. , Bigot M. , Achten F. , Rademacher G. , Luís R. S. , Puttnam B. J. , Mecozzi A. , Antonelli C.
Published: July 2023

The most recent advances on multimode fibers for space-division-multiplexed transmissions are presented. Results demonstrate the potential and maturity of this technology for future optical communications networks.
Compact Echelle Grating Filter for Monolithic Silicon Photonics
Authors: Abumazwed Ahmed , Chandran Sujith , Bian Yusheng , Lee Won Suk , Zhang Jessica , Deptuck Dan , Rakowski Michal , Stricker Andy , Lee Jae Gon , Letavic Ted
Published: July 2023

We present a miniaturized Echelle grating multiplexer in the O-band. The device was fabricated using GlobalFoundries-45CLO-process. Statistical analysis verifies the device manufacturability with a stable channel-center (standard deviation< 0.72nm), and crosstalk (<-20dB over 3dB-bandwidth).
Ultra-low power 256 channels optical phased-array based on low-doped carrier-depletion modulators
Authors: Bataille Louise-Eugénie , Barrera Cyrille , Guerber Sylvain , Monfray Stéphane , Grosse Philippe , Fowler Daivid , Brision Stéphane , Charlet Ismael , Vivien Laurent , Dagens Beatrice , Boeuf Frédéric
Published: July 2023

We report a 256 channels 1D optical phased-array (OPA) based on plasma-dispersion effect. This system exhibits ultra-low power consumption (~1mW) revealing the potential of carrier-depletion scheme at low doping dose for solid-state LiDARs applications.
Fully-Passive Optical Packaging of Arrays of Surface-Normal Electroabsorption Modulators to Fiber Arrays
Authors: Basavanhally Nagesh , Papazian Rick , Hu Ting-Chen , Bolle Cristian , Cappuzzo Mark , Tate Alaric , Earnshaw Mark , Kopf Rose , Pardo Flavio , Neilson David , Grillanda Stefano
Published: July 2023

We demonstrate, for the first time, fully-passive, optical packaging of an 8-channel array of surface-normal electroabsorption modulators to arrays of standard single-mode fibers. We validate our packaging approach through 25 Gbit/s NRZ-OOK modulation.
Silicon nitride electro-optic modulators enabled by heterogeneous integration of barium titanate films
Authors: Ahn Geun Ho , White Alexander D. , Crust Kevin , Andersson Chris , Grzesik Jakob , Van Gasse Kasper , Scuri Giovanni , Hwang Harold Y. , Vučković Jelena
Published: July 2023

We demonstrate electro-optic modulators on a low-loss silicon nitride platform by heterogeneously integrating crystalline barium titanate membranes.
Carrier Non-pinning at Stripe Edges and Widened Far field in Broad-Area Lasers due to Longitudinal Temperature Variation
Authors: Khamari S. K. , Arslan S. , Zink C. , Sweeney S. J. , Crump P.
Published: July 2023

2D-in-plane spontaneous emission studies reveal lateral carrier-non-pinning linked to longitudinal temperature variation in 9xx-nm broad-area-lasers. Front-side non-pinning at the stripe edges broadens far-field, eliminated with short pulses (no heat) or high front-facet reflectivity (flat optical profile).
Vector-vortex beams with spatio-temporal couplings
Authors: Jolly Spencer W.
Published: July 2023

Vector-vortex beams with space-time couplings will be discussed along with their interesting and useful properties for light-matter interaction.
Observation of Kilometer Propagation of Space-time Wavepackets
Authors: Hall Layton A. , Romer Miguel A. , Turo Bryan L. , Hayward Tina M. , Menon Rajesh , Abouraddy Ayman F.
Published: July 2023

We observe for the first t ime, a p ropagation i nvariant s pace-time wave packet propagating a kilometer in turbulent conditions. Ultimately, we produce a 2 mm STWP which is propagation invariant and outperforms the equivalent Gaussian beam by 100x.
Propagation of azimuthally non-symmetric vortices in non-Kolmogorov turbulence
Authors: Acevedo Cristian Hernando , Eshagdi Mahdi , Free Justin , Johnson Eric , Dogariu Aristide
Published: July 2023

Propagation through turbulent media leads to a symmetric broadening of orbital angular momenta spectra of vortex beams. We demonstrate that this is not the case for a class of initially asymmetric perfect vortex beams.
UV photonic integrated circuits for robust quantitative phase imaging
Authors: Lin Chupao , Baets Roel , Le Thomas Nicolas
Published: July 2023

Photonic integrated circuits have been demonstrated to benefit super-resolved fluorescence microscopy. Here, we propose a UV PIC-based quantitative phase imaging based on Kramers-Kronig relationships, achieving robust and high-resolution phase image retrieval in a low-cost and compact way.
Photonic Microwave Oscillator based on Fiber Delay Stabilization using a Waveguide Balanced Cross-Correlator
Authors: Vargas Erwin Cano , Şafak Kemal , Dai Anan , Edelmann Marvin , Emaury Florian , Rudin Benjamin , Battle Philip , Roberts Tony D. , Hawthorne Todd , Kärtner Franz X.
Published: July 2023

A compact, all-optical, repetition rate stabilized femtosecond laser and photonic microwave generator with phase-noise -100, -140 and < -160 dBc/Hz at 100 Hz, 10 kHz and > 100 kHz, respectively, and integrated timing-jitter < 3-fs.
Future Optical Access-Metro Platforms for Advanced Services in the 6G Era
Authors: Kani Jun-ichi , Kaneko Shin , Shibata Naotaka , Kim Sang-Yuep , Suzuki Takahiro , Hara Kazutaka , Yoshida Tomoaki
Published: July 2023

We discuss how the access and metro networks can evolve to support more advanced services in the 6G era with a focus on access-metro platforms based on distributed computing and optical networking.
Fast-Controlled and Time-Slotted Photonically Interconnected Edge Computing and Time-Sensitive Networks
Authors: Santana Henrique , Mefleh Ali , Calabretta Nicola
Published: July 2023

Exploiting a supervisory channel we demonstrate fast FPGA-based control and switching for transparently photonically connected edge data centers. Results show microsecond-time control, time-slotted operation and deterministic latency with nanosecond jitter supporting time sensitive applications.
A dual-mode 2 × 2 semiconductor optical amplifier on an InP membrane
Authors: Wang Yi , Wei Yihui , Dolores-Calzadilla Victor , Dai Daoxin , Smit Meint , Williams Kevin , Jiao Yuqing
Published: July 2023

A 2 × 2 mode-division multiplexed semiconductor optical amplifier (SOA) is realized, first time to the authors’ knowledge. The TE0 and TE1 modes exhibit 6 dB and 4 dB gain, respectively, at 4.1 kA cm-2.
High-Gain Parametric Amplification On-Chip at Low Pump Powers
Authors: Zhao Yun , Jang Jae K. , Ji Xingchen , Okawachi Yoshitomo , Lipson Michal , Gaeta Alexander L.
Published: July 2023

We demonstrate a novel amplification scheme that yields high (30-dB), continuous-wave parametric amplification of weak signals using small-footprint microresonators at pump power levels (< 10 mW) compatible with typical chip-scale lasers.
Synchronized Limit Cycle Oscillation in Coupled Si Photonic Crystal Cavities
Authors: Takiguchi M. , Takemura N. , Takata K. , Sumikura H. , Taniyama H. , Kuramochi E. , Shinya A. , Notomi M.
Published: July 2023

We demonstrate synchronized limit cycle oscillation in coupled Si photonic crystal (PhC) cavities by regarding the self-pulsing from a single PhC cavity as a limit cycle oscillator.
Cavity-enhanced second- and third-harmonic generation from a diamond microdisk
Authors: Flågan Sigurd , Itoi Joe , Shandilya Prasoon K. , Barclay Paul E.
Published: July 2023

We demonstrate cavity-enhanced second- and third-harmonic generation from a diamond microdisk containing nitrogen-vacancy centers. The photon emission follows a clear dependency with detuning of both the pump and emission modes, indicating a doubly-resonant configuration.
Frequency agile photonic integrated external cavity laser
Authors: Bancora Andrea , Lihachev Grigory , Snigirev Viacheslav , Tian Hao , Riemensberger Johann , Shadymov Vladimir , Siddharth Anat , Attanasio Alaina , Wang Rui Ning , Visani Diego , Voloshin Andrey , Bhave Sunil A. , Kippenberg Tobias J.
Published: July 2023

We demonstrate a Vernier ring laser with linear frequency tuning of 1.5 GHz at 100 kHz chirp rate and wavelength switching with 7 ns rise time and 75 nW power consumption using Si3N4 photonic chip with integrated PZT actuators.
Record-High Fiber Output of External Cavity Laser Modules Using GaInAsP/InP Electric-Field-Controlled Lasers for S-band-Raman Amplifier
Authors: Yoshida J. , Itoh H. , Sakaguchi K. , Tanaka M. , Hojo N. , Seki M. , Tatamida Y. , Kokawa T.
Published: July 2023

We demonstrate record-high power external cavity laser (ECL) consisting of a GaInAsP/InP electric-field-controlled laser and fiber Bragg-grating for S-band Raman amplifiers. An ECL has 1W-fiber output and power fluctuation below 2% at over 40mW output.
Integrated Photonic Sigmoid Activation Function at 10 Gbaud/s for Photonic Neural Networks
Authors: Chrysostomidis T. , Roumpos I. , Moralis-Pegios M. , Lambrecht J. , Caillaud C. , Yin X. , Pleros N. , Vyrsokinos K.
Published: July 2023

We experimentally demonstrate an optoelectronic assembly of a monolithic SOA/UTC-PD chip interconnected to a TIA and realizing a 10 Gbaud/s photonic sigmoid activation function with adjustable steepness slope.
Extending Dual-Comb Spectroscopy Path Length to 14.5 km by Separating Receiver from Transmitter
Authors: Giorgetta F. R. , Baumann E. , Washburn B. R. , Malarich N. , Deschênes J.-D. , Coddington I. , Newbury N. R. , Cossel K. C.
Published: July 2023

We present dual-comb spectroscopy across a 14.5-km path using remote receiver and data acquisition. This configuration results in lower link losses compared to open-path configurations with co-located transmitter and receiver.
Ultraviolet Dual-comb Spectroscopy Utilizing Intra-cavity High Harmonic Generation
Authors: Zhang Yu , McCauley John J. , Jones R. Jason
Published: July 2023

We demonstrate ultraviolet dual-comb spectroscopy utilizing intra-cavity high-harmonic generation from femtosecond enhancement cavities. The approach paves the way for vacuum ultraviolet to extreme ultraviolet dual-comb spectroscopy.
Waveguide-Integrated Thin-Film Lithium Niobate-Two-Dimensional Material Photodetectors
Authors: Zhu Sha , Zhang Yiwen , Ren Yi , Wang Yongji , Zhai Kunpeng , Feng Hanke , Zhu Ning Hua , Pun Edwin Yue-Bun , Wang Cheng
Published: July 2023

We report a waveguide-integrated lithium niobite on insulator (LNOI) two-dimensional material platform, demonstrating large bandwidth above 40 GHz LNOI-graphene PDs and ultrahigh responsivity of 7 A/W LNOI-Te PDs, to fill the photodetection gap on LNOI.
A Chip-based Orbital Angular Momentum Transceiver for Underwater Optical Communications
Authors: Ropp Chad , Woolf David , Simmons Evan , Hensley Joel , Johnson Eric , Evans Christopher
Published: July 2023

We demonstrate an on-chip orbital angular momentum transceiver operating at visible wavelengths for high-bandwidth low-loss underwater optical communications. Our device achieves an average crosstalk of better than 8 dB from testing in air.
On Target Optimisation of the ELI-NP High Power Laser System
Authors: Dancus Ioan , Chalus Olivier , Derycke Christophe , Ricaud Sandrine , Banici Romeo , Baleanu Andrei , Alincutei Alexandru , Gradinariu Andrei , Cernaianu Mihail , Ghenuche Petru , Diaconescu Bogdan , Nastasa Viorel , Gugiu Marius , Cojocaru Gabriel , Toma Antonia , Nistor Dmitrii , Vasescu Lidia , Naziru Andrei , Iancu Vicentiu , Talposi Maria , Dumitru Alice , Popa Stefan , Matei Dan G. , Ursescu Daniel , Tesileanu Ovidiu , Doria Domenico , Gales Sydney , Ur Calin Alexandru
Published: July 2023

We report on the method used to tune the 10 PW High Power Laser System parameters for optimized laser-target interaction at the ELI-NP showing the possibility to reach the 1023 W/cm2 irradiance level.
Existence of nested oscillators in soliton molecules revealed by Mode Decomposition
Authors: Sheveleva Anastasiia , Hamdi Said , Coillet Aurélien , Finot Christophe , Colman Pierre
Published: July 2023

Mode decomposition techniques concomitantly reduce noise in data and classify dynamics in term of modes families. Applied to soliton molecules, it reveals that weak oscillators can nest into a principal one, and interact with it.
Temperature-driven, Symmetry-broken Nonlinear Polarization Evolution Method for Environmentally-stable, Sub-100-fs Mode-locked Fiber Oscillators
Authors: Kanai Tsuneto , Okada George , Tokita Shigeki
Published: July 2023

We demonstrate a 96-fs, all-polarization-maintaining ytterbium fiber oscillator mode-locked with a temperature-driven, symmetry-broken nonlinear polarization evolution method. The central wavelength and output pulse energy were 1030 nm and 33.7 mW at 18.31 MHz, respectively.
Supersymmetric Compactification and Higher-Dimensional Rearrangement of Photonic Lattices
Authors: Wolterink Tom A. W. , Heinrich Matthias , Szameit Alexander
Published: July 2023

Self-imaging photonic lattices enable perfect transfer of quantum and classical states, yet are challenging to implement at scale. We harness supersymmetry to engineer compacted two-dimensional systems exhibiting equivalent characteristics and experimentally investigate their dynamics.
Comparison of Coherent and Incoherent Donut Beams for Deep Tissue STED Microscopy
Authors: Shanavas Thariq , McLeod Robert R. , Siemens Mark E. , Gopinath Juliet T.
Published: July 2023

We numerically compare the null quality for STED microscopy generated by Laguerre-Gaussian beams with orbital angular momentum and donut beams generated by incoherent addition of orthogonal Hermite Gaussian beams when imaging deep biological tissue.
Quantum Ghost Imaging without an Optical Delay Line for Non-Destructive Imaging of Water Content in Plants
Authors: Meier Kristina A. , Ryan Duncan P. , Thompson David C. , Newell Raymond T. , Sandoval Rebecca Holmes , Werner James H.
Published: July 2023

By using correlations between spatially entangled photons, Quantum Ghost Imaging allows for imaging plant water content without influencing light-dependent plant processes. A proprietary spatially and temporally resolved camera negates the need for optical delay lines.
Dynamic Single-Cavity Dual-Comb Fiber Laser for Rapid Nonlinear Metrology
Authors: Prakash Neeraj , Li Bowen , Huang Shu-Wei
Published: July 2023

We demonstrate a dynamic single-cavity dual-comb fiber laser for rapid time-domain metrology. By dynamically modulating repetition rate difference using pump power, measurement speed has been enhanced by hundreds of times without sacrificing the measurement accuracy.
Single-shot ultrafast imaging with terahertz radiation
Authors: Dong Junliang , You Pei , Tomasino Alessandro , Yurtsever Aycan , Morandotti Roberto
Published: July 2023

We demonstrate a single-shot ultrafast terahertz imaging system, by multiplexing an optical probe beam in both the time and spatial-frequency domains, which can capture multiple frames of an optically-opaque transient scene with sub-picosecond temporal resolutions.
Silicon Photonics-Based All-Optical Image Compression
Authors: Sarma Raktim , Redding Brandon , Wang Xiao , Hu Minghao , Karl Nicholas , Long Christopher , Burckel David Bruce , Pang Sean , Brady David
Published: July 2023

We demonstrate an all-optical image compression technique using on-chip nanophotonic disordered media to perform local random transformations. Our compression technique is fast, scalable, and may consume about 50 times less energy than electronic compression.
Impact of Longitudinal Phase Mismatch in Three-Wave Nonlinear Mixing
Authors: Dorrer Christophe
Published: July 2023

Three-wave nonlinear mixing is simulated in the presence of longitudinal variations in phase-matching conditions, demonstrating their impact on the energy transfer between waves, with potential application to broadband optical parametric amplification in large crystals.
Electrically-controlled Varifocal and Bifocal-Bicolor Metalenses Embedded in a Liquid Crystal
Authors: Bosch Melissa , Shcherbakov Maxim R. , Won Kanghee , Lee Hong-Seok , Shvets Gennady
Published: July 2023

We demonstrate highly-compact multifunctional zoom components based on low-loss all-dielectric metasurfaces integrated with liquid crystals (LCs). These devices could find use in next-generation imaging systems including mobile cameras and wearable mixed-reality displays.
Propagation Losses of Sputtered Oxide Waveguides in the Visible Range
Authors: Irvine David A. , MacFarlane Neil , Schreyer-Miller Aaron , Houck William D. , Foster Mark A. , Foster Amy C.
Published: July 2023

Sputtered oxide films show an exciting future with photonic integrated circuits due to their wide transparency range. We show propagation losses in niobium-tantalum oxide (NbTaOx) and tantalum pentoxide (Ta2O5) with visible wavelengths in fabricated waveguides.
Heterogeneously Integrated InGaAs DFB Laser on Tantalum Pentoxide
Authors: Dorche Ali Eshaghian , Nader Nima , Stanton Eric J. , Nam Sae Woo , Mirin Richard P.
Published: July 2023

We present a heterogeneously integrated distributed feedback (DFB) diode laser with tantalum pentoxide waveguide on a silicon substrate, with a maximum output power of 5 mW per facet at 1020 nm wavelength and a side mode suppression ratio of 22 dB.
Low-noise meta-mirrors in optical cavities - current status and prospects
Authors: Dickmann Johannes , Gaedtke Mika O. , Kempkes Mona , Nicolodi Daniele , Neto Liam Shelling , Sauer Steffen , Siefke Thomas , Sterr Uwe , Kroker Stefanie
Published: July 2023

The precision of many applications in high-precision metrology involving optical cavities is limited by the Brownian thermal noise of mirror coatings. Meta-mirrors are promising to overcome current noise limitations. In this contribution, we demonstrate a meta-etalon combining a meta-mirror with a conventional multilayer mirror to enhance the maximum reflectivity of the meta-mirror while maintaining low thermal noise. By this, we achieve a cavity finesse of 11.500, more than a factor of 10 larger than the maximum achieved with standalone meta-mirrors.
Impact ionization and intervalley scattering induced by intense few-cycle THz pulses in undoped InSb thin films
Authors: Garcia-Rosas C. M. , Ropagnol X. , Guiramand L. , Blanchard F. , Ozaki T.
Published: July 2023

We study the interaction of intense THz pulses with undoped (100) InSb thin film at room temperature using terahertz time-domain spectroscopy. We explain the changes in THz transmission as a balance between absorption bleaching and impact ionization.
Deflection of Ultrashort Pulse Laser (USPL) Supercontinuum Generation by USPL-Generated Surface Craters on Fused Silica
Authors: Talisa Noah , Epstein Zachary , Willitsford Adam , Youngs Eddie , Montalbano Tim
Published: July 2023

Laser-induced damage practically limits supercontinuum generation in transparent solids with ultrashort pulse lasers (USPL). We investigate how supercontinuum light from fused silica changes as the incident intensity increases through the ablation threshold.
Terabit Ultra-high-speed NFDM Transmission over G.654E Fiber with 103Gbaud Probabilistic Shaped 64QAM Signals
Authors: Chen Xinyu , Fang Xiansong , Cai Xiang , Zhou Lingjun , Li Chao , He Zhixue , Zhang Fan
Published: July 2023

We experimentally demonstrate a record ultra-high-speed 1.004 Tb/s dual-polarization NFDM transmission system over 300 km G.654E fiber with probabilistic shaped 64QAM signals, achieving a spectral efficiency at 7.65 b/s/Hz by employing continuous nonlinear spectrum.
Data-efficient Modeling of Optical Matrix Multipliers Using Transfer Learning
Authors: Cem A. , Jovanovic O. , Yan S. , Ding Y. , Zibar D. , Ros F. Da
Published: July 2023

We demonstrate transfer learning-assisted neural network models for optical matrix multipliers with scarce measurement data. Our approach uses < 10% of experimental data needed for best performance and outperforms analytical models for a Mach-Zehnder interferometer mesh.
Mitigating TMI using Multimode Excitation in Fiber Amplifiers with Gain Saturation
Authors: Wisal Kabish , Chen Chun-Wei , Cao Hui , Stone A. Douglas
Published: July 2023

We present a theory of TMI threshold for highly multimode excitations in fiber amplifiers with gain saturation. We show TMI threshold increases 6-fold when all 30-modes are excited equally in a 2D waveguide, compared to fundamental mode-only excitation.
Coherent OAM Modulation Technique using Versatile Phase Controllability of Multi-optical-combs towards Sensitive and Rapid Spatiotemporal Spectroscopy
Authors: Asahara Akifumi , Zhu Ruichen , Minoshima Kaoru
Published: July 2023

A new orbital angular momentum (OAM) modulation method is demonstrated based on the high phase controllability of multi-optical-combs. The developed method will lead to sensitive and rapid spatiotemporal spectroscopy using optical frequency combs.
An Etchless Integration Platform for Superconducting Nanowire Single Photon Detectors
Authors: Martinelli Filippo , Koh Darren M. Z. , Dong Shuyu , Vetlugin Anton N. , Krishnamoorthy Harish N.S. , Kurtsiefer Christian , Soci Cesare
Published: July 2023

We introduce a new etchless integration platform for superconducting nanowire single photon detectors based on bound states in the continuum polymer strip waveguides, which enables dense fabrication of high-efficiency detectors in planar photonics circuits.
Energy-Efficient Design of a Fast All-Optical Single-Photon Switch with Pre-Emphasis Pump Scheme
Authors: Ruf Fabian , Nielsen Lars , Volet Nicolas , Heck Martijn J. R.
Published: July 2023

Fast and ultralow-loss switching is crucial for optical quantum communication and computation. All-optical switches with gigahertz bandwidths that can be fabricated in a scalable foundry-based photonic integration platform are optimized for energy-efficient operation.
Massively-Parallel Broadband Diffractive Processor for All-Optical Computation of a Large Set of Linear Transformations
Authors: Li Jingxi , Bai Bijie , Luo Yi , Ozcan Aydogan
Published: July 2023

We design a massively-parallel broadband diffractive processor for all-optical computation of a large number ( > 180) of arbitrarily-selected, complex-valued linear transformations by encoding the input/output of each transformation using a unique wavelength.
All-optical, reconfigurable mode switcher integrated in multicore fibers with a counter-propagating configuration
Authors: Ji Kunhao , Davidson Ian , Sahu Jayanta , Jung Yongmin , Richardson David. J. , Guasoni Massimiliano
Published: July 2023

We present an all-optical mode switcher in multicore fibers driven by an intense backward control beam and demonstrate the reconfigurable mode conversion in an in-house fabricated dual core fiber.
Controlling Thermal and Nonlinear Optical Instabilities in Fiber Amplifiers
Authors: Cao Hui
Published: July 2023

We suppress transverse mode instability and stimulated Brillouin scattering in a multimode fiber by exciting many modes. High beam quality is maintained, and the output beam profile can be controlled by shaping the input wavefront.
Time-Stretch Coherent Raman Scattering Spectroscopy Running at 50,000,000 Spectra/s
Authors: Nakamura Takuma , Hashimoto Kazuki , Ideguchi Takuro
Published: July 2023

We demonstrate broadband coherent Raman scattering (CRS) spectroscopy of liquid organic compounds at the record highest spectral acquisition rate of 50 MHz, which is 100-1000 times higher than the other high-speed CRS spectroscopy techniques.
Gate-Tuning Silicon Microring Resonator Filters for On- chip Wavelength Division Multiplexing
Authors: Hsu Wei-Che , Nujhat Nabila , Kupp Benjamin , Conley John F. , Wang Alan X.
Published: July 2023

We demonstrated efficient gate-tuning on-chip wavelength division multiplexing filters using a silicon microring resonator array driven by high-mobility titanium-doped indium oxide gates. It shows extensive wavelength coverage for entire channel spacing over 5 nm.
Scalable Optical Control for Atomic System using Integrated Acousto-Optic Beam Steering
Authors: Lin Qixuan , Li Bingzhao , Li Mo
Published: July 2023

We demonstrate a scalable integrated acousto-optic beam steering (AOBS) technique on the lithium niobate on insulator (LNOI) platform, realizing visible-light continuous beam steering with a single microwave drive.
Real-time Si photonics nonmechanical FMCW LiDAR with SLG beam scanner and enhanced k-clock sampling
Authors: Yamazaki Shumpei , Tamanuki Takemasa , Kubota Riku , Baba Toshihiko
Published: July 2023

FMCW ranging with enhanced k-clock sampling was implemented in a Si photonics nonmechanical SLG LiDAR device to compensate for the nonlinearity of a swept laser source. Successful real-time operation was obtained with 2720 image pixels.
Nonlinear optics in a high-index sputtered oxide
Authors: MacFarlane Neil , Schreyer-Miller Aaron , Foster Mark A. , Houck William D. , Foster Amy C.
Published: July 2023

We present niobium tantalum oxide as a material for nonlinear integrated photonics. Propagation losses of 0.47 dB/cm are extracted from high-Q resonators. The nonlinear performance is demonstrated through optical parametric oscillation and super-continuum generation.
Analysis of geometrical deformation effects in hollow-core Tube-Lattice Fibers
Authors: Soli Elena , Melli Federico , Rosa Lorenzo , Vasko Kostiantyn , Benabid Fetah , Vincetti Luca
Published: July 2023

We have developed a numerical FEM approach for hollow-core Tube-Lattice Fibers to calculate losses due to geometrical deformation along the fiber axis and hereby provide scaling laws to gain insight and assist in design.
Nanostructurization to optimize weakly-coupled few-mode fiber for mode-division-multiplexed systems
Authors: Kasztelanic R. , Anuszkiewicz A. , Buczynski R.
Published: July 2023

We present the optimization of four modes optical fiber structure for mode-division multiplexing systems using nanostructurization. The nanostructurization allows to fabrication of fibers with arbitrarily designed refractive index distribution based on two glasses.
Plasmonic Photochemical Process for Preparation of Metallic Nanopore Arrays
Authors: Lanzavecchia German , Kuttruff Joel , Doricchi Andrea , Rodríguez Alba Viejo , Maccaferri Nicolò , Krahne Roman , Garoli Denis
Published: July 2023

We report a process for fabricating sub-10 nm nanopores via photocatalysis caused by electromagnetic field enhancement in plasmonic structures, which immersed in metallic salt solutions triggers hotspots for metallic deposition causing pore diameter shrinkage.
Bandgap-detuned excitation regimes of microcombs in photonic-crystal resonators
Authors: Jin Yan , Briles Travis C. , Zang Jizhao , Carlson David R. , Papp Scott B.
Published: July 2023

We explore the formation of parametric oscillators and dark solitons by detuned excitation of a gapped microresonator. Un-pumped photonic crystals enable optimization of forward propagation and conversion efficiency without sacrificing spontaneous pattern and state generation.
Novel Technique for High-Frequency Carrier Envelope Offset Frequency Detection using Vernier Microcombs
Authors: Wu Kaiyi , O'Malley Nathan P. , Fatema Saleha , Wang Cong , Girardi Marcello , Alshaykh Mohammed S. , Ye Zhichao , Schneider Ryan J. , Leaird Daniel E. , Qi Minghao , Torres-Company Victor , Weiner Andrew M.
Published: July 2023

We demonstrate a novel Vernier dual-comb based method for the detection and division of a microcomb's carrier envelope offset frequency that is beyond the bandwidth of typical commercial detection electronics.
Curved Airy-Like Beams for Terahertz Wireless Communications
Authors: Guerboukha Hichem , Zhao Bin , Knightly Edward , Mittleman Daniel M.
Published: July 2023

We study curved Airy-like beams for terahertz wireless communications. We show how to generate arbitrary convex trajectories using caustics. We verify with simulations and experiments that bending beams can be generated.
Simple and High-Speed Fiber-Terahertz-Fiber Bridge System in 355-GHz Band using Photonics-Enabled Receiver
Authors: Dat Pham Tien , Morohashi Isao , Inagaki Keizo , Sekine Norihiko , Kanno Atsuhi , Yamamoto Naoktatsu , Akahane Kouichi
Published: July 2023

We demonstrate a simple fiber-terahertz-fiber system in the 355-GHz band using a stable optical frequency comb generation and photonics-enabled receiver. We successfully transmitted a 16-QAM OFDM signal with a line rate of 60 Gb/s over the system.
Platform independent integration of telluride thin films for high speed on-chip photodetection
Authors: Ahn Geun Ho , White Alexander D. , Kim Hyungjin , Higashitarumizu Naoki , Mayor Felix M. , Herrmann Jason F. , Safavi-Naeini Amir H. , Javey Ali , Vučković Jelena
Published: July 2023

We demonstrate platform-independent and scalable integration of tellurium thin film with photonic structures in silicon, silicon nitride and lithium niobate for ultra-broadband photodetection with a bandwidth of more than 40 GHz.
Long Live O-PCMs: Understanding Reliability Challenges of Optical Phase Change Materials
Authors: Popescu Cosmin-Constantin , Mills Brian , Monier Louis Martin , Ranno Luigi , Zhang Yifei , Du Qingyang , Ríos Carlos , Vitale Steven , Roberts Christopher , Miller Paul , Liberman Vladimir , Kim Hyun Jung , Aryana Kiumars , Kang Myungkoo , Richardson Kathleen , Callahan Dennis , Geiger Sarah , Gu Tian , Hu Juejun
Published: July 2023

The endurance of optical phase change material-based devices for integrated and free-space applications is explored and improvements are proposed based on limiting PCM dewetting, protective layer delamination, and elemental migration towards stable phases.
Ultra-Efficient Plasmonic Phase-Change Devices on SOI Platform
Authors: He Yuhan , Farmakidis Nikolaos , Aggarwal Samarth , Lee June Sang , Wang Mengyun , Zhou Wen , Bhaskaran Harish
Published: July 2023

Small footprints and low energy consumption are the long-seeking metrics for photonic computing. Here, we combine grating structures with plasmonic nanogap devices and demonstrate less than 4pJ optical switching energy with stable multilevel performance.
High-Speed Lithium Niobate Modulator on Silicon Nitride using Micro-Transfer Printing
Authors: Vanackere Tom , Vandekerckhove Tom , Bogaert Laurens , Billet Maximilien , Poelman Stijn , Cuyvers Stijn , Van Kerrebrouck Joris , Moerman Arno , Caytan Olivier , Lemey Sam , Torfs Guy , Roelkens Gunther , Clemmen Stéphane , Kuyken Bart
Published: July 2023

A high-speed modulator on silicon nitride is demonstrated using 2 mm-long micro-transfer printed lithium niobate coupons. This device has a 3-dB bandwidth >50GHz, and an insertion loss of 3.3 dB that allowed us to transmit 70 Gb/s.
Next Generation UV-Visible Single-Mode Fibers
Authors: Davidson Ian A. , Jackson Greg , Kelly Thomas W. , Varghese Thejus , Jasion Gregory T. , Wheeler Natalie V. , Richardson David J. , Poletti Francesco
Published: July 2023

We report the results of a new optical fiber fabrication approach we have developed to produce broadband, UV-Visible guiding, single-mode, hollow-core fibers with performance levels that meet or exceed current commercial single-mode fibers.
A heterogeneously integrated lithium niobate-on-silicon nitride photonic platform
Authors: Churaev Mikhail , Wang Rui Ning , Snigirev Viacheslav , Riedhauser Annina , Blésin Terence , Möhl Charles , Anderson Miles H. , Siddharth Anat , Popoff Youri , Drechsler Ute , Caimi Daniele , Hönl Simon , Riemensberger Johann , Liu Junqiu , Seidler Paul , Kippenberg Tobias J.
Published: July 2023

We present a LiNbO3 integrated photonic platform with wafer-scale bonding to a Si3N4 photonic circuit. The platform exhibits <0.1 dB/cm propagation loss and <2.5 dB/facet fiber-chip coupling loss. We demonstrate phase shifters, frequency-agile lasers, optical splitters, and other devices.
Misalignment-free, Kerr-lens-modelocked Yb:Y2O3 2.2-GHz Oscillator, Amplified by a Semiconductor Optical Amplifier
Authors: Ostapenko Hanna , Feng Ye , Lamour Tobias , McCracken Richard , Mandel Oliver , Weise Dennis , Reid Derryck T.
Published: July 2023

We present a fully bonded misalignment-free single-diode-pumped Yb:ceramic laser producing 190-fs pulses at 2.2 GHz. Chirped-pulse amplification in a semiconductor optical amplifier yielded an average power of 69 mW and pulse energies of 32 pJ.
Robust GHz Repetition Rate Optical Frequency Combs
Authors: Droste Stefan , Attar Andrew , Timmers Henry , Newman Zach , Hickstein Daniel , Carlson David , Rudin Benjamin , Emaury Florian , Vogel Kurt , Knabe Kevin
Published: July 2023

We phase stabilize a 1 GHz optical frequency comb with a residual phase noise of <270 mrad [1kHz to 1MHz] on both the carrier-envelope offset frequency and the repetition rate, respectively. The SNR of the offset beat signal is 56 dB (100 kHz RBW).
United time and frequency spectroscopy with engineered dual comb spectrometer
Authors: Ghosh Sutapa , Eisenstein Gadi
Published: July 2023

We report a dual-comb spectrometer having engineered pulse trains used to study two-level system dynamics with high frequency and temporal resolutions. The exci-tation evolution of rubidium isotopes was measured with a resolution of 4ns.
Multi-wavelength injection locking by single section QD comb lasers
Authors: Chen Jiajian , Wei Wenqi , Qin Jiale , Yang Bo , Huang Jingzhi , Wang Zihao , Wang Ting , Yu Changyuan , Zhang Jianjun
Published: July 2023

We demonstrate the multi-wavelength feedback injection-locking effect for the first time. Feedback injection-locked single-section QD laser combs exhibit FSR tunability, narrowed linewidth~20 kHz and uniform energy distribution among sidebands.
Asynchronous upconversion sampling of frequency modulated combs
Authors: Täschler Philipp , Forrer Andres , Bertrand Mathieu , Kapsalidis Filippos , Beck Mattias , Faist Jérôme
Published: July 2023

We demonstrate an asynchronous optical sampling technique for the temporal characterization of frequency modulated combs. On the basis of a mid-infrared quantum cascade laser frequency comb, we measure both its instantaneous intensity and optical frequency.
Computational Spectroscopy via Large Aperture Meta-Optics
Authors: Fröch Johannes E. , Colburn Shane , Zhan Alan , Han Zheyi , Fang Zhuoran , Saxena Abhi , Huang Luocheng , Böhringer Karl F. , Majumdar Arka
Published: July 2023

We demonstrate the concept of a meta-optic based computational spectrometer, combining a meta-optic, which encodes the spectrum of transmitted light into a spatial intensity pattern, that is retrievable through a computational backend.
Ultra-miniaturized Optical Spectrometers with a Highly Tunable van der Waals Junction
Authors: Yoon Hoon Hahn , Ahmed Faisal , Fernandez Henry A. , Nigmatulin Fedor , Cui Xiaoqi , Uddin Md. Gius , Liapis Andreas C. , Cai Weiwei , Yang Zongyin , Hakonen Pertti , Lipsanen Harri , Hassan Tawfique , Sun Zhipei
Published: July 2023

We report ultra-miniaturized (~10×20 µm2) spectrometers with electrically modulated van der Waals junctions in conjunction with a reconstruction algorithm, achieving spectral reconstruction with a spectral resolution of ~3-nm over a broad operation bandwidth for spectral imaging.
Small Spectrometer with Extremely High-resolution (0.07 nm) Realized with an Improved Reconstruction Algorithm
Authors: Kokubu Junnosuke , Sugano Ryo , Ohtsuka Minoru , Yokoyama Nobuyuki , Okano Makoto , Tanabe Takasumi
Published: July 2023

Spectra are reconstructed by capturing wavelength-specific patterns of localized light in a photonic-crystal-waveguide. We show that real-time reconstruction at a wavelength resolution of 0.07 nm is possible by using low-rank approximation with singular-value-decomposition and regularized-least-squares.
Two-Photon Dual-Comb LiDAR for Multi-Target Ranging
Authors: Wright Hollie , Nelmes Alexander J. M. , Weston Nick J. , Reid Derryck T.
Published: July 2023

We demonstrate two-photon dual-comb LiDAR achieving simultaneous dynamic ranging to three moving targets driven by sinusoidal, triangular and square waveforms at 12-Hz frequency. For stationary targets, we show averaging to sub-µm precisions in 500 ms.
Dynamic Distance Measurement with nm-Level Precision and MHz Acquisition Rate Using a Frequency Comb-Based Combined Method
Authors: Ahn Changmin , Na Yongjin , Kim Jungwon
Published: July 2023

We demonstrate a dynamic distance measurement method that combines electro-optic sampling-based timing detection and microwave phase detection. At 1-MHz (4.55-Hz) acquisition rate, a 300-mm non-ambiguity range and 49-nm (0.99-nm) precision are attained.
Wavelength-to-Angle Conversion of Optical Frequency Comb for Dual-Comb Spectroscopy of Angular-Interrogation Surface Plasmon Resonance
Authors: Kodama Yuya , Koresawa Hidenori , Hase Eiji , Tokizane Yu , Minamikawa Takeo , Yasui Takeshi
Published: July 2023

Surface plasmon resonance (SPR) is used for refractive-index sensing and biosensing due to high sensitivity. We proposed the wavelength-to-angle conversion optical comb to enhance the sensing performance of angular-interrogation SPR by combing with dual-comb spectroscopy.
Coherent coupling of a metamaterial resonator with acceptor impurities in Si
Authors: Meng Fanqi , Han Feifan , Kentsch Ulrich , Pashkin Alexej , Fowley Ciaran , Rebohle Lars , Thomson Mark D. , Suzuki Safumi , Asada Masahiro , Roskos Hartmut G.
Published: July 2023

We investigate the coherent coupling of metamaterial resonators with hydrogen-like boron acceptors in doped Si at cryogenic temperature. When the resonance frequency of the metamaterial superimposes a transition frequency of the acceptors, Rabi splitting is observed. The splitting shows a square-root dependence on the density of the acceptors.
Self-injection Locked Second-Harmonic Generation in Optically Poled Silicon Nitride Microresonators
Authors: Clementi M. , Nitiss E. , Durán-Valdeiglesias E. , Liu J. , Kippenberg T.J. , Debrégeas H. , Brès C.S.
Published: July 2023

We present a narrow-linewidth second-harmonic source based on a laser diode injection locked to an optically poled silicon nitride microresonator. The device is a compact, highly-coherent dual-wavelength source, with high conversion efficiency up to 280%/W.
Zero crosstalk in anisotropic TM leaky mode with subwavelength grating metamaterials
Authors: Kabir Md Faiyaz , Mia Md Borhan , Ahmed Ishtiaque , Jaidye Nafiz , Ahmed Syed Z. , Kim Sangsik
Published: July 2023

We show that a TM leaky mode realized by subwavelength gratings (SWGs) can eliminate crosstalk between proximate waveguides. Oscillating fields i n t he SWGs allow coupling coefficient components to counteract each other, resulting in zero crosstalk.
Towards an Alignment-Free, Impedance-Matched Cavity Quantum Memory in a Thulium-Doped Crystal
Authors: Das Antariksha , Davidson Jacob H. , Chakraborty Tanmoy , Tchebotareva Anna L. , Tittel Wolfgang
Published: July 2023

Here, we discuss our experimental efforts toward building an alignment-free, long-lived, and efficient cavity-enhanced quantum memory in a thulium-doped crystal. A significant step forward for creating efficient quantum memories with long optical storage times.
Ultrawideband Microwave Photonic Beamforming Based on Frequency Doubling and Dispersive Delay
Authors: Wang Mian , Xue Xiaoxiao , Li Shangyuan , Zheng Xiaoping
Published: July 2023

We propose a photonic true-time-delay beamforming scheme that can achieve ultrawideband waveform generation and distortion-free delay simultaneously. The generation and beamforming performance of an 8-GHz wide linear-frequency-modulated waveform in the Ku band is evaluated.
In situ Thermal Refractive Index Trimming of Silicon Nitride Waveguides with Suspended Heaters
Authors: Xue Tianyuan , Poon Joyce K. S. , Sacher Wesley D.
Published: July 2023

We demonstrate low-power thermal refractive index trimming of silicon nitride waveguides using suspended heaters. An average effective index change of -2.6×10-3 was achieved at a wavelength of 1550 nm with a power dissipation of 40mW after 1.5 hours.
Monolithic integration of polarization and mode division (de)multiplexing in silicon carbide integrated platforms
Authors: Shi Xiaodong , Lu Yaoqin , Ou Haiyan
Published: July 2023

We monolithically integrate polarization and mode division (de)multiplexers in SiC integrated platforms, which can manipulate six TE and TM multimodes, simultane-ously. We numerically and experimentally demonstrate the device with good performances.
Doubly Phase Matched Wavelength Conversion in Thin-film Lithium Niobate Nanowaveguides
Authors: Tang Chao , Zhu Shen-yu , Ma Zhao-hui , Li Zhan , Sua Yong Meng , Huang Yu-Ping
Published: July 2023

We demonstrate double-peak quasi-phasing matching for second-harmonic generation with high efficiency by engineering periodic poling. The results show the poten-tial of multi-channel nonlinear optical processing on chip.
Quantum-relevant optical nonlinearity in aluminum nitride
Authors: Liu Jiangnan , Singh Anshuman , Wang Ping , Wang Ding , Shin Walter , Kira Mackillo , Soltani Moe , Mi Zetian
Published: July 2023

Record-high electro-optic coefficient in thin-film AIN is demonstrated by introducing Al0.75Ga0.25N multiple quantum-wells. Ferroelectricity is reached with novel ScAlN quantum structures, developed to enhance (2) nonlinearity toward quantum relevance.
Image Sensors Based on Nonlinear Optical Neural Networks
Authors: Sohoni Mandar M. , Wang Tianyu , Wright Logan G. , Stein Martin M. , Ma Shi-Yuan , Onodera Tatsuhiro , Anderson Maxwell G. , McMahon Peter L.
Published: July 2023

We use a multilayer, nonlinear optical neural network as a pre-processor for machine vision. On tasks including identification o f r eal o bjects i lluminated by broad-band incoherent light, we show that nonlinear optical pre-processing outperforms linear pre-processing.
Integrated tunable twisted single photon source
Authors: Zhao Haoqi , Ma Yichen , Gao Zihe , Liu Na , Wu Tianwei , Wu Shuang , Feng Xilin , Hone James , Strauf Stefan , Feng Liang
Published: July 2023

Twisted single photons, carrying orbital angular momentum (OAM) as an unbounded dimension, could address the growing demand for high-dimensional quantum information encoding and transmission. By hybrid integration of two-dimensional semiconductor WSe2 with a spin-orbit-coupled microring resonator, we demonstrate an integrated tunable twisted single photon source with the ability to precisely define and switch between highly pure spin-OAM states.
Soliton Microcomb Generation in a Gallium Phosphide Photonic Crystal Cavity
Authors: Nardi Alberto , Davydova Alisa , Kuznetsov Nikolai , Möhl Charles , Anderson Miles , Riemensberger Johann , Seidler Paul , Kippenberg Tobias J.
Published: July 2023

We report broadband bright soliton microcomb generation in the emerging platform gallium phosphide on insulator. We demonstrate a broadband dispersion-engineered photonic-crystal Fabry-Perot resonator with record-high quality factors.
Observations of dual-dispersive soliton microcombs with deterministic azimuthal angle control
Authors: Melton T. , Liu H. , Wang W. , Yu M. , Kwong D.L. , Wong C. W.
Published: July 2023

We demonstrate a novel method of dual-soliton generation with fixed azimuthal angle in a dual-pumped microresonator. A relationship between the pump detuning from an avoided mode crossing on the azimuthal angle is studied.
Biological and Environmental Sensors Based on Lensfree Microscopes
Authors: McLeod Euan , Potter Colin J. , Baker Maryam
Published: July 2023

Lensfree microscopes offer an ultra-large field of view together with high res-olution and cost-effective, compact hardware. This makes them well suited for the COVID-19 and airborne nanoparticulate matter sensing applications we present here.
Inner-Wall Grating Double Slot Microring Resonator for High Sensitivity and Large Measurement Range Label-Free Biochemical Sensing
Authors: Cheng Weiqing , Sun Xiao , Ye Shengwei , Yuan Bocheng , Liu Xuefeng , Marsh John H. , Hou Lianping
Published: July 2023

Based on the SOI platform, a double slot micro ring resonator with inner wall angular gratings is achieved with the highest sensitivity of 562.564 nm/RIU and a large measurement range of 72.62 nm.
Writable and Erasable Second Harmonic Generation from Crystal-Derived All-Glass Optical Fibers
Authors: Pietros Alexander R. , Rebeszko Kacper , Hawkins Thomas , Cavillon Maxime , Ballato John , Dragic Peter D.
Published: July 2023

All glass optical fibers drawn from crystalline precursors via the molten core method demonstrate instantaneous and greatly enhanced second harmonic generation. Results when pumping in the NIR at relatively low powers (< 1W) are presented.