bluuebunny/crossref_metadata_2025 huggingface dataset:
Deep Learning Assisted Pre-Carrier Phase Recovery EVM Estimation for Coherent Transmission Systems
Authors: Fan Yuchuan , Udalcovs Aleksejs , Pang Xiaodan , Natalino Carlos , Schatz Richard , Furdek Marija , Popov Sergei , Ozolins Oskars
Published: August 2021

We exploit deep supervised learning and amplitude histograms of coherent optical signals captured before carrier phase recovery (CPR) to perform time-sensitive and accurate error vector magnitude (EVM) estimation for 32 Gbaud mQAM signal monitoring purposes.
Performance-enhanced Amplified O-band WDM Transmission using Machine Learning based Equalization
Authors: Hong Yang , Deligiannidis Stavros , Taengnoi Natsupa , Bottrill Kyle R. H. , Thipparapu Naresh K. , Wang Yu , Sahu Jayanta K. , Richardson David J. , Mesaritakis Charis , Bogris Adonis , Petropoulos Periklis
Published: August 2021

We investigate the performance of a machine learning-based equalization in an amplified 4×50-Gb/s O-band WDM system. The results show that the scheme offers significant receiver sensitivity improvements over decision-feedback equalization, especially at more dispersive wavelengths.
Vortex microlaser with ultrafast tunability
Authors: Zhang Zhifeng , Qiao Xingdu , Midya Bikashkali , Liu Kevin , Zhao Haoqi , Sun Jingbo , Wu Tianwei , Pires Danilo Gomes , Liu Wenjing , Gao Zihe , Agarwal Ritesh , Jornet Josep Miquel , Longhi Stefano , Litchinitser Natalia M. , Feng Liang
Published: August 2021

Based on the concepts of spin-orbit interaction, angular momentum conservation and transient optical gain controlled non-Hermitian symmetry breaking, we demonstrate an ultrafast-tunable vortex microlaser, providing emissions with controlled integer (fractional) OAM charge.
Room temperature hot-pressed Fe:ZnSe ceramic laser
Authors: Karki Krishna , Yu Shengquan , Fedorov Vladimir , Wu Yiquan , Mirov Sergey
Published: August 2021

We report the first room-temperature gain-switched Fe:ZnSe hot-pressed ceramics laser pumped by 2.94 μm radiation of mechanically Q-switched Er:YAG laser. The maximum output energy was 41 mJ with 25% slope efficiency at 3Hz repetition rate.
Millimeter-Scale Chip-Based Supercontinuum Generation for Optical Coherence Tomography
Authors: Ji Xingchen , Mojahed Diana , Okawachi Yoshitomo , Gaeta Alexander L. , Hendon Christine P. , Lipson Michal
Published: August 2021

We demonstrate a supercontinuum light source for OCT imaging in a compact 1 mm2 Si3N4 chip. We achieve 105 dB sensitivity and a 6-dB sensitivity roll-off at 1.81 mm with only 300 µW incident power.
28 Channel PAM8 WDM PON Transmission based on a Single Time-lens Source
Authors: Xu X. , Kong D. , Girouard P. D. , Lillieholm M. , Oxenløwe L. K. , Guan P.
Published: August 2021

We demonstrate a PAM8 WDM-PON transmission using a transmitter with TDM-WDM conversion based on optical time-lens. 28×375 Mb/s WDM channels are generated and transmitted over 20 km with BER below 3.8×10–3.
40GBaud Quasicoherent Receiver
Authors: Thomas Varghese A. , Varughese Siddharth , Ralph Stephen E.
Published: August 2021

Quasicoherent receivers strike a complexity-performance tradeoff between fully digital coherent receivers and traditional direct detect receivers. We achieve PAM-2 40 GBaud signaling using a quasicoherent receiver by relying on full wave detection-based envelope detection.
Active Demultiplexer-enabled 300G 16-QAM SSB-DMT Transmission using Optical Frequency Combs
Authors: Ahmad Syed Tajammul , Lakshmijayasimha Prajwal Doddaballapura , Kaszubowska-Anandarajah Aleksandra , Anandarajah Prince M.
Published: August 2021

We present an OFC and an active demultiplexer based transmitter, achieving a BER below HD-FEC limit, for 40 km fiber transmission of 25 Gb/s/λ SSB-DMT, for all tones within 20 dB from the spectral peak.
Future Long-Reach Optical Access Network with Digital Coherent Technologies
Authors: Kanai Takuya , Koma Ryo , Kani Jun-ichi , Yoshida Tomoaki
Published: August 2021

The use of digital coherent technologies offers many advantages to future optical access systems. This paper introduces approaches based on DSP technologies to realize long-reach TDM-PON systems.
Mid-infrared Octave-spanning Supercontinuum Generation in an All-normal Dispersion SiGe Waveguide
Authors: Sinobad Milan , Torre Alberto Della , Armand Remi , Luther-Davies Barry , Ma Pan , Madden Stephen , Mitchell Arnan , Moss David J. , Hartmann Jean-Michel , Fedeli Jean-Marc , Monat Christelle , Grillet Christian
Published: August 2021

We report supercontinuum generation from an all-normal dispersion SiGe-on-Si waveguide pumped with 205 fs pulses at 4 μm. The supercontinua are spanning over an octave for both orthogonal polarizations of the fundamental mode.
Alignment-Free Mid-IR Source Tunable From 5 to 20 µm by Mixing Two Independently Tunable OPOs
Authors: Mörz Florian , Steinle Tobias , Linnenbank Heiko , Steinmann Andy , Giessen Harald
Published: August 2021

Difference frequency generation setups suffer from beam pointing offsets during wavelength tuning due to angular phase-matching. We present a stable scheme that circumvents crystal rotation and achieves a 10 times efficiency improvement for λ>11 µm.
Synthetic Pockels Modulators in Silicon
Authors: Bottenfield Christian G. , DeSalvo Richard , Ralph Stephen E.
Published: August 2021

We report the performance of a synthetic Pockels modulator based on a dominant DC Kerr effect on a commercial silicon platform, present expressions for quantifying fundamental performance, and compare performance to state-of-the-art modulators.
Fully Reconfigurable Coupled-Resonator Optical Waveguides (CROWs) with 10 nW Static Power MEMS
Authors: Park Young J. , Kim Dong U. , Kim Do Y. , Hong Myung S. , Takabayashi Alain Y. , Jeong Youngjae , Park Jongwoo , Han Seungjun , Quack Niels , Yu Kyoungsik , Han Sangyoon
Published: August 2021

We report on fully reconfigurable CROWs with MEMS-tunable waveguides. Resonator-to-resonator and resonator-to-waveguide coupling are fully tunable. Resonance of a resonator is also widely tunable to cover its full FSR. The static power consumption per tunable coupler is below 10nW.
Optimization of Raman Amplification Schemes for Single-Span High Data Rate Coherent Transmission Systems
Authors: Tan Mingming , Iqbal Md A. , Krzczanowicz Lukasz , Phillips Ian. D. , Harper Paul , Forysiak Wladek
Published: August 2021

We compared the transmission performances of 600Gbit/s PM-64QAM WDM signals over 75.6km of SMF using EDFA, discrete Raman, hybrid Raman/EDFA, first-order, and second-order distributed Raman amplifiers. The first-order Raman scheme delivered the best BER.
Broadband Sum-Frequency Generation in a Novel Angularly Dispersed Noncollinear Geometry
Authors: Dorrer C. , Spilatro M. , Borger T. , Herman S. , Hill E. M.
Published: August 2021

Broadband frequency conversion of nanosecond spectrally incoherent pulses from 1053 nm to 351 nm is demonstrated in a novel sum-frequency-generation noncollinear angularly dispersed scheme, yielding spectrally incoherent pulses with bandwidth greater than 10 THz.
Reaching the Millijoule-Regime via Ultrafast Optical Parametric Amplification – An Alternative to First Stage Regenerative Amplification Stages?
Authors: Zobus Y. , Brabetz C. , Zou Ji-Ping , Bagnoud V.
Published: August 2021

A new ultra-high contrast uOPA module is being developed for the PHELIX- and PENELOPE frontend-chains. This module will enhance the ASE-contrast and prevent the formation of pre-pulses through a bypass of high-gain amplifiers.
High repetition rate extreme ultraviolet source and Terahertz driver laser
Authors: Golz Torsten , Indorf Gregor , Petev Mihail , Buss Jan-Heye , Deinert Jan-C. , Grguras Ivanka , Schulz Michael , Riedel Robert
Published: August 2021

A high repetition rate, optical-parametric chirped-pulse amplifier system and high-harmonic-generation source is presented for photoelectron spectroscopy experiments spanning an ultra-wide frequency range from Terahertz to the extreme-ultraviolet range between 21.7 and 50 eV.
SUPPOSe Deconvolution + AI Denoising: Super-resolving Sparse Signals Blurred and Buried in Noise
Authors: Lacapmesure Axel M. , Toscani Micaela , Vazquez Guillermo Brinatti , Martínez Sandra R. , Martínez Oscar E.
Published: August 2021

The deconvolution of sparse objects images is analyzed after using the SUPPOSe algorithm and its combination with artificial intelligence denoising, showing resolutions under 100nm under high noise levels.
Feedlot-produced ammonia emissions quantified using dual-comb spectroscopy
Authors: Herman Daniel I. , Hutcherson Lindsay C. , Weerasekara Chinthaka , Giorgetta Fabrizio R. , Cossel Kevin C. , Colacion Gabriel M. , Newbury Nathan R. , Welch Stephen M. , DePaola Brett D. , Coddington Ian , Santos Eduardo A. , Washburn Brian R.
Published: August 2021

Ammonia flux from a cattle feedlot is characterized using two integrated-path dual-comb spectroscopy (DCS) measurements. Precision agricultural DCS measurements over several months reveal temperature and wind dependence of the feedlot ammonia emission rates.
Nanowires: a New Horizon for Polarization-resolved Terahertz Time-domain Spectroscopy
Authors: Peng Kun , Jevtics Dimitars , Zhang Fanlu , Sterzl Sabrina , Damry Djamshid A. , Rothmann Mathias U. , Guilhabert Benoit , Strain Michael J. , Tan Hoe , Herz Laura M. , Fu Lan , Dawson Martin D. , Hurtado Antonio , Jagadish Chennupati , Johnston Michael B.
Published: August 2021

In this study, a novel type of broadband polarization-sensitive photoconductive terahertz detectors based on crossed nanowire networks is demonstrated, enabling fast and precise polarization terahertz time-domain spectroscopy measurements.
Efficient Leaky-Wave Antenna for Terahertz Wireless Communications
Authors: Guerboukha Hichem , Shrestha Rabi , Neronha Joshua , Ryan Olivia , Hornbuckle Malachi , Fang Zhaoji , Mittleman Daniel M.
Published: August 2021

We study the radiation properties of leaky-wave antenna at terahertz frequencies for wireless communications. We introduce a novel aperture design that increase the efficiency and directionality of the generated beams.
Quantum seeded Sub-20 fs pulse train generation using transient SRS in H2-filled inhibited coupling HC-PCF
Authors: Ignacchiti J. , Kergoustin D. , Amrani F. , Debord B. , Gérôme F. , Benabid F.
Published: August 2021

We report on the generation of pulse trains from a hydrogen-filled hollow-core fiber pumped by 10 ps pulses for wave synthesis. Experimental results show ultrashort pulse trains separated by 57 fs with 20 fs duration.
Aluminum Nitride Photonics Platforms on Silicon Substrate
Authors: Li Nanxi , Ho Chong Pei , Cao Yanmei , Zhu Shiyang , Chen George F. R. , Fu Yuan Hsing , Zhu Yao , Tan Dawn T. H. , Lee Lennon Y. T.
Published: August 2021

The CMOS-compatible AlN photonics platforms developed within Institute of Microelectronics (IME) are presented, and nonlinear index of the AlN is reported. The photonics devices demonstrated are reviewed, and the future prospective is provided.
Probing the Material Loss and Optical Nonlinearity of Integrated Photonic Materials
Authors: Gao Maodong , Yang Qi-Fan , Ji Qing-Xin , Wu Lue , Liu Junqiu , Huang Guanhao , Chang Lin , Xie Weiqiang , Shen Boqiang , Wang Heming , Yuan Zhiquan , Yu Su-Peng , Papp Scott , Kippenberg Tobias , Bowers John , Vahala Kerry
Published: August 2021

Optical absorption and nonlinear index are important performance drivers in devices like microcombs and parametric oscillators. Here we use resonance-enhanced nonlinear spectroscopy to characterize absorption limits and nonlinear index for some integrated photonic materials.
GW peak power, sub-30-fs pulses from efficient single-stage pulse compressor at 400-kHz
Authors: Omar Alan , Ahmed Shahwar , Hoffmann Martin , Saraceno Clara J.
Published: August 2021

We demonstrate pulse compression of 310-fs, 150-MW peak power pulses at 400-kHz repetition rate down to 27 fs, 1.05 GW of peak power using a single, dispersion-optimized Herriott-type multipass cell compressor with 92 % overall efficiency.
Photonic-Chip-Based Nonlinear Compression of Picosecond Pulses
Authors: Oliver Richard , Okawachi Yoshitomo , Ji Xingchen , Johnson Adrea R. , Klenner Alexander , Lipson Michal , Gaeta Alexander L.
Published: August 2021

We demonstrate soliton-effect compression of picosecond pulses using ultralow loss dispersion-engineered 40-cm-long silicon-nitride nanowaveguides. We show compression by factors of 21× of 1 ps pulses using pulse energies as low as 18 pJ.
Fully-Stabilized Mid-Infrared Optical Frequency Comb with Dynamic Offset Frequency Tuning
Authors: Roiz Mikhail , Kumar Krishna , Karhu Juho , Vainio Markku
Published: August 2021

We demonstrate an approach for mid-infrared frequency comb generation based on femtosecond Optical Parametric Generation seeded by a continuous-wave laser. The offset frequency can be stabilized, continuously tuned and modulated without its direct detection.
45 dB Single-Stage Single-Frequency Cr:ZnSe Amplifier for 2.2-2.6 μm Spectral Range
Authors: Smolski V. , Moskalev I. , Vasilyev S. , Peppers J. , Mirov M. , Barnakov Y. , Fedorov V. , Martyshkin D. , Mirov S. , Gapontsev V.
Published: August 2021

We report 45 dB single stage Cr:ZnSe amplifier operating over 2.2-2.6 μm spectral range seeded by CW Cr:ZnSe single frequency laser. The maximum output energy of 1.6 mJ was demonstrated in 25 ns pulses at 1000 Hz repetition rate.
Characterization of a THz Electric Field using Precision Spectroscopy of Molecular Ions
Authors: Constantin Florin Lucian
Published: August 2021

SI-traceable calibration of the amplitudes and phases of the Cartesian components of a THz electric field may be performed by comparing measurements of the lighshifts of HD+ two-photon rovibrational transitions with molecular ion theory predictions.
Electro Optical Waveguide Based on Embedded Double-Monolayer Graphene Capacitor
Authors: Ramirez Jhonattan C. , Dagli Nadir
Published: August 2021

We report design, fabrication, and characterization of an electro-optical waveguide with embedded double-layer graphene capacitor. Optical absorption change of 15 dB/(cm-V) over 1546-1556 nm wavelength range was demonstrated based on the electrical Fermi level control.
Very High-Q photonic microdisk resonator in an air-clad, thin-film SiN at near-visible wavelengths
Authors: Dorche Ali Eshaghian , Raman Chandra , Adibi Ali
Published: August 2021

Very high-Q photonic microdisk resonators in an air-clad thin-film SiN platform at near-visible wavelengths is demonstrated. The high Qs enabled by fabrication optimization result in the increased coherence time of the intracavity photon and provides better coherent interaction with atoms.
Probing the Limits of Optical Loss in Ion-Sliced Thin-film Lithium Niobate
Authors: Shams-Ansari Amirhassan , Huang Guanhao , He Lingyan , Churaev Mikhail , Kharel Prashanta , Tan Zelin , Holzgrafe Jeffrey , Cheng Rebecca , Zhu Di , Liu Junqiu , Desiatov Boris , Zhang Mian , Kippenberg Tobias J. , Lončar Marko
Published: August 2021

We measured the absorption-limited loss at telecommunication wavelengths for thin-film lithium niobate micro-ring resonators using Kerr-calibrated linear response technique. We find the average absorption loss-rate κabs/2π to be 3.65 ± 0.70 MHz, corresponding to a Q-factor of 55 Million.
MTW-OPAL—A Technology Development Platform for Ultra-Intense All-OPCPA Systems
Authors: Bromage J. , Bahk S.-W. , Begishev I. A. , Bucht S. , Dorrer C. , Feng C. , Hoffman B. N. , Jeon C. , Mileham C. , Oliver J. B. , Roides R. G. , Shoup M. J. , Spilatro M. , Webb B. , Zuegel J. D.
Published: August 2021

Activation results will be presented for MTW-OPAL, a new all-OPCPA laser using technologies suitable for kilojoule-femtosecond systems, highlighting 140-nm-wide amplification in DKDP to >10 J with 30% efficiency and subsequent recompression to 20 fs.
Robust Self-Referenced Generator of Programmable Multi-Millijoule THz-Rate Bursts
Authors: Stummer Vinzenz , Flöry Tobias , Kaksis Edgar , Pugžlys Audrius , Baltuška Andrius
Published: August 2021

We demonstrate a technique for the programmable generation and multi-millijoule amplification of ultrashort pulse bursts, which can be applied to any master-oscillator regenerative-amplifier system with very low implementation complexity and high stability in burst performance.
All-Silicon, Optics-Free Microspectromer Chip Based on Vertical Waveguide Array Pixels
Authors: Cadusch Jasper J. , Meng Jiajun , Wen Dandan , Crozier Kenneth B.
Published: August 2021

We experimentally demonstrate a nanostructured silicon microspectrometer chip that consists of 144 pixels, each comprising an array of vertical waveguides of subwavelength period. We show that both broad- and narrow-band visible spectra can be reconstructed.
Development of Supercontinuum Laser Source for 2 μm OCT with Tm-Ho co-doped Ultrashort Pulse Fiber Laser Using Single Wall Carbon Nanotube
Authors: Yamamoto J. , Yamanaka M. , Zhou Y. , Saitoh T. , Sakakibara Y. , Nishizawa N.
Published: August 2021

Highly efficient Tm-Ho co-doped ultrashort pulse fiber laser operating at 1.9 μm was developed using single wall carbon nanotube. Wideband supercontinuum at 2.0 μm was generated and high-resolution OCT imaging of human tooth was demonstrated.
Sub-picosecond Fiber Laser at 3.5 µm
Authors: Bawden Nathaniel , Henderson-Sapir Ori , Jackson Stuart D. , Ottaway David J.
Published: August 2021

We report the first sub-picosecond pulses from a fiber laser with a directly generated emission beyond 3.0 µm. The 3.5 µm dual-wavelength pumped system is mode-locked via nonlinear polarisation rotation, producing 1.3 nJ pulses lasting 830 fs.
High-performance Silicon/Graphene Photodetector Employing Double Slot Structure
Authors: Yan Siqi , Zuo Yan , Xiao Sanshui , Oxenløwe Leif Katsuo , Ding Yunhong
Published: August 2021

We demonstrate an integrated graphene-Si photodetector, consisting of plasmonic slot and Si dielectric slot waveguides, with the responsivity higher than 600 mA/W and the bandwidth larger than 40 GHz.
Broadband photodetection of MoS2/p-Ge/n-Ge bipolar heterojunction phototransistor
Authors: Park Youngseo , Hwang Au Jin , Lee Chanho , Yoo Geonwook , Heo Junseok
Published: August 2021

MoS2/p-Ge/n-Ge bipolar heterojunction phototransistor is fabricated, which can detect from VIS to NIR. The responsivities are 35.21 and 133.56 A/W at 466 and 1550 nm, respectively. Photocurrent amplification of BHP, 6 times larger than photocurrent of p-Ge/n-Ge and p-Ge/MoS2 photodiodes.
Photonic chip-based optical nanoscopy
Authors: Helle Øystein , Dullo Firehun Tsige , Lahrberg Marcel , Tinguely Jean-Claude , Hellesø Olav Gaute , Ahluwalia Balpreet Singh
Published: August 2021

A photonic chip-based approach is shown as alternative to conventional super-resolution fluorescence microscopy. By making use of photonic circuits, more compact, cost-effective and higher resolving setups can allow for a wider implementation of these techniques.
Distributed Temperature Sensing Based on φ-OTDR Using Back-reflection-enhanced Fiber
Authors: Galal Malak , Sebastian Suneetha , Zhang Li , Thévenaz Luc
Published: August 2021

Distributed temperature sensing with 10 dB back-reflection-enhanced fiber is performed based on φ-OTDR. While the temperature sensitivity of such fibers is similar to that of standard single-mode fibers, a 3-times higher temperature resolution is observed.
Integrated Near-Infrared Spectral Sensor based on Near-Infrared Detector Arrays
Authors: Hakkel Kaylee D. , Petruzzella Maurangelo , Ou Fang , van Klinken Anne , Pagliano Francesco , Liu Tianran , van Veldhoven Rene P.J. , Fiore Andrea
Published: August 2021

We present a spectral sensor based on an integrated array of resonant-cavity-enhanced photodetectors operating in the near-infrared. Prediction models are built directly using the 15 photodetector responses, without the need for spectral reconstruction.
Monolayer Photonic Micro-ring of Polystyrene Nanoparticles Fabricated by Optical Vortex Laser Induced Forward Transfer
Authors: Umesato Kei , Kawaguchi Haruki , Takahashi Kanta , Miyamoto Katsuhiko , Kohri Michinari , Omatsu Takashige
Published: August 2021

We demonstrate, for the first time, the fabrication of a monolayer photonic micro-ring formed of polydopamine coated monodisperse polystyrene particles by employing optical vortex induced forward mass transfer technique. Such interesting micro-ring formation will provide a new insight for interaction between the orbital angular momentum of light and matters.
All-dielectric Halide Perovskite Metasurfaces with Giant Chirality
Authors: Long Guankui , Adamo Giorgio , Tian Jingyi , Feltri Elena , Krishnamoorthy Harish N. S. , Klein Maciej , Soci Cesare
Published: August 2021

We realized all-dielectric halide perovskite metasurfaces with giant chirality. With circular dichroism as high as 16% and excellent luminescence properties, high refractive index halide perovskite metasurfaces rival conventional dielectric platforms for low cost, active metadevices.
Experimental Demonstration of Dynamic Spatiotemporal Structured Beams that Exhibit Two Orbital-Angular-Momenta Simultaneously Using a Kerr Frequency Comb
Authors: Pang Kai , Zou Kaiheng , Zhao Zhe , Song Hao , Zhou Yiyu , Karpov Maxim , Yessenov Murat , Shiri Abbas , Song Haoqian , Zhang Runzhou , Zhou Huibin , Su Xinzhou , Hu Nanzhe , Minoofar Amir , Kippenberg Tobias J. , Boyd Robert W. , Abouraddy Ayman F. , Tur Moshe , Willner Alan E.
Published: August 2021

We experimentally demonstrate the generation of dynamic spatiotemporal structured beams that exhibit two orbital-angular-momenta simultaneously using a Kerr frequency comb. The mode purity of the revolving and rotating LG30 beam is obtained to be ~89%.
Polarization twisting dual-pulse generation
Authors: Wei Hao-Keng , Ito Hironori , Misawa Kazuhiko , Luo Chih-Wei
Published: August 2021

The polarization twisting frequency, helicity, and time delay between two pulses, can be manipulated individually via a modified Michelson interferometer with inserting a pellicle beam splitter into each arm.
A stabilized doubly resonant optical parametric oscillator for strong-field applications
Authors: Rao Han , Dietrich Christian Markus , de Andrade José Ricardo Cardoso , Demircan Ayhan , Babushkin Ihar , Morgner Uwe
Published: August 2021

We show that higher order dispersion allows to significantly increase the self-locking region of doubly resonant parametric oscillators and demonstrate a possibility of its stabilization using sum-frequency generation of signal and pump waves.
Demonstration of Turbulence Mitigation in a 200-Gbit/s Orbital- Angular-Momentum Multiplexed Free-Space Optical Link using Simple Power Measurements on a Probe Wavelength
Authors: Hu Nanzhe , Song Haoqian , Zhang Runzhou , Zhou Huibin , Liu Cong , Su Xinzhou , Song Hao , Pang Kai , Zou Kaiheng , Lynn Brittany , Tur Moshe , Willner Alan E.
Published: August 2021

We experimentally demonstrate turbulence mitigation in a 200-Gbit/s OAM-multiplexed free-space optical link with data channels on 1552 nm using simple power measurements on a probe wavelength of 1550 nm without interrupting the data transmission. We observe a crosstalk reduction of up to 25 dB.
On demand control of bus-cavity coupling
Authors: Hinney Jakob , Molina Andres Gil , Dave Utsav D. , Ji Xingchen , Lin Tong , Gaeta Alexander L. , Lipson Michal
Published: August 2021

We show tuning of the cavity-bus coupling rate by more than 160% by imparting a nonlinear differential parametric gain between the clockwise and counterclockwise propagating modes.
Coupled-mode theory of the polarization dynamics inside a microring resonator with a uniaxial core
Authors: Cortes-Herrera Luis , He Xiaotong , Cardenas Jaime , Agrawal Govind P.
Published: August 2021

We develop a coupled-mode theory for polarization coupling inside a LiNbO3 microring resonator. We use analytical techniques from quantum mechanics to characterize the polarization dynamics in such a resonator.
Optical Generative Adversarial Network based on Programmable Phase-change Photonics
Authors: Wu Changming , Yang Xiaoxuan , Yu Heshan , Takeuchi Ichiro , Chen Yiran , Li Mo
Published: August 2021

We demonstrate photonic generative adversarial networks (GANs) based on a phase-change metasurface mode converter (PMMC) array and perform the handwritten-like number generation task.
Self-Starting Harmonic Combs in THz Quantum Cascade Lasers
Authors: Forrer Andres , Beck Mattias , Faist Jerome , Scalari Giacomo , Wang Yongrui , Belyanin Alexey
Published: August 2021

We report on high temperature, self-starting THz Quantum Cascade Laser harmonic frequency combs. Their coherence is assessed by electrical beatnote measurements and a self-mixing technique and their beatnote can be injection-locked to a RF source.
Chaos Bandwidth in Mid-infrared Quantum Cascade Photonic Devices with Interband and Intersubband Transitions
Authors: Spitz O. , Wu J. , Didier P. , Díaz-Thomas D. A. , Cerutti L. , Baranov A. N. , Maisons G. , Carras M. , Wong C.-W. , Grillot F.
Published: August 2021

We experimentally display temporal chaotic waveforms in the mid-infrared domain with two different types of semiconductor lasers. The generated high-dimensional non-linear dynamics are of prime interest for private communications and physical random number generation.
Infrared light power transmission limitation of optical fibers
Authors: Ferraro M. , Mangini F. , Zitelli M. , Niang A. , Tonello A. , Couderc V. , Wabnitz S.
Published: August 2021

Luminescence from silica defects is associated with a multiphoton absorption mechanism, responsible for strong nonlinear losses in graded-index multimode optical fibers. Our experiments reveal the existence of a fundamental limitation to the power transmission capabilities of optical fibers.
Fabrication and Characterization of a Double-Ring Negative-Curvature Hollow-Core Fiber
Authors: Wang Yuxi , Hassan Muhammad Rosdi Abu , Chang Wonkeun
Published: August 2021

We fabricate a novel negative-curvature fiber that consists of two rings of non-touching antiresonant tubes surrounding the central hollow core. The transmission loss of the fiber is lower than that achievable with its single-ring counterpart.
Limits of Coupling Efficiency into Hollow-Core Antiresonant Fibers
Authors: Fokoua Eric Numkam , Slavik Radan , Richardson David J. , Poletti Francesco
Published: August 2021

We show theoretically that the coupling efficiency between a gaussian beam and the fundamental mode of nested antiresonant hollow-core optical fibers exceeds 97% and depends on the order of the antiresonance window.
Angled interconnection between standard single-mode fiber and nested nodeless antiresonant fibers
Authors: Suslov Dmytro , Dousek Daniel , Zvanovec Stanislav , Numkam Fokoua Eric R. , Poletti Francesco , Richardson David J. , Komanec Matej , Slavik Radan
Published: August 2021

We present angled interconnection between standard single-mode fiber and nested nodeless antiresonant fibers achieving an insertion loss of 0.45 dB and return loss below -60 dB over a wide (1450-1650nm) spectral range.
Hollow core fiber temperature sensitivity reduction via winding on a thermally-insensitive coil
Authors: Ding Meng , Numkam Fokoua Eric. R. , Bradley Thomas D. , Poletti Francesco , Richardson David J. , Slavík R.
Published: August 2021

We demonstrate over 3× lower thermal sensitivity by winding a hollow core fiber on an ultralow thermal expansion material bobbin. A record-low fiber phase thermal sensitivity of 0.9 rad/m/K is demonstrated at room temperature.
Application of Refractive-index-sensing Optical Frequency Comb for Biosensing of Antigen-antibody Reaction
Authors: Nakahara Takuya , Oe Ryo , Kajisa Taira , Taue Shuji , Minamikawa Takeo , Yasui Takeshi
Published: August 2021

We combined a refractive-index-sensing optical comb with biotin surface modification for biosensing of avidin. A repetition frequency signal of optical comb is read out as s sensor signal of antigen-antibody reaction.
Nanometric precision metrology based on hybrid spectrally resolved and homodyne interferometry via a single soliton microcomb
Authors: Liu Hao , Jang Yoon-Soo , Yang Jinghui , Yu Mingbin , Kwong Dim-Lee , Wong Chee Wei
Published: August 2021

We present ultra-precision distance measurement based on spectral interferometer via single soliton microcomb generated in Si3N4 microresonator. We demonstrate 3-nm repeatability over a 23-mm non-ambiguity range via homodyne interferometry, over 1000s long-term stability.
Limits of Resolution for Sensors based on Correlated Frequency Combs
Authors: Horstman Luke , Hsu Ning , Hendrie James P. , Diels Jean-Claude
Published: August 2021

Sensors based on dual combs of identical repetition rate exhibit quantum limited sensitivity because they are correlated when generated in the same cavity. Dispersion enhancement is demonstrated without a significant noise increase (Petermann factor).
Subcarrier Intensity Modulation for Turbulent Underwater Optical Wireless Communications
Authors: Guler Egecan , Geldard Callum , Hamilton Alexander , Popoola Wasiu
Published: August 2021

This paper experimentally demonstrates the resilience of subcarrier intensity modulated underwater optical wireless communications to turbulence compared to amplitude modulation schemes. 1.2 Gbps transmission rate is demonstrated within FEC limit in underwater turbulence.
Real-time Experimental Demonstration of Timestamped Digitised Radio over Switched Optical Ethernet Fronthaul
Authors: Li Tongyun , Bai Lu , Zhang Jingyun , Moore Andrew W. , White Ian H. , Penty Richard V.
Published: August 2021

This paper experimentally demonstrates a novel digitised RF service transmission with data compression over switched 10Gbps optical Ethernet fronthaul showing low latency (<2.4µs), high transmission efficiency (~1/3 that of CPRI) and wide dynamic range (40dB).
Polarization-Splitter-Rotator-Free Dual-Polarization Coherent Receiver with a Single Optical Hybrid
Authors: Soma Go , Ishimura Shota , Tanomura Ryota , Fukui Taichiro , Ito Maiko , Nakano Yoshiaki , Tanemura Takuo
Published: August 2021

We propose and demonstrate a dual-polarization (DP) homodyne coherent receiver with a single optical hybrid without any polarization splitter-rotator. Using a proof-of-concept device fabricated on InP, DP quadrature phase-shift keying signal is retrieved successfully.
Electrically-operated buried-heterostructure nanocavity laser with sub-20 μA threshold current
Authors: Sakanas Aurimas , Marchevsky Andrey , Dimopoulos Evangelos , Xiong Meng , Yu Yi , Mathiesen Kristoffer S. , Semenova Elizaveta , Mørk Jesper , Yvind Kresten
Published: August 2021

We demonstrate a lateral-current injection photonic crystal laser bonded to a Si-platform and comprising buried heterostructure InGaAsP/InGaAlAs quantum wells. The laser operates CW at room-temperature near 1550 nm with a threshold current of 19 μA.
Single-mode Topological Valley-Hall Lasing Controlled by the Degree of Asymmetry at Telecommunication Wavelength
Authors: Noh Wanwoo , Nasari Hadiseh , Kim Hwi-Min , Le-Van Quynh , Jia Zhetao , Huang Chi-Hsin , Kanté Boubacar
Published: August 2021

We report single-mode lasing of valley-Hall ring cavities. The degree of asymmetry in a honeycomb photonic crystal governs light confinement regimes in the valley-Hall cavity and enables efficient single-mode operation despite multiple modes.
Fiber-Integrated Supercontinuum with a 20 GHz Resonant Electro-Optic Frequency Comb
Authors: Sekhar Pooja , Fredrick Connor , Leifer Stephanie , Diddams Scott A.
Published: August 2021

We employ an efficient 1550 nm resonant waveguide-type electro-optic comb generator with PM nonlinear fiber optics to generate 50 fs pulses and 500 nm broad super- continuum at 20 GHz.
Gigahertz supercontinuum comb generation by two-pulse bound state
Authors: Chen Shijie , Zhou Renlai , Liu Xuanyi , Fu H. Y. , Li Qian
Published: August 2021

We theoretically and experimentally demonstrate the gigahertz supercontinuum combs generated by a two-pulse bound state. The repetition rate is about 18.75 GHz and the combs extend over 270 nm.
Simultaneous Imaging and Localization in a Heavily Scattering Random Medium With Speckle Data From a Moving Object
Authors: Hastings Ryan L. , Bentz Brian Z. , Lin Dergan , Webb Kevin J.
Published: August 2021

Recorded speckle from a moving object hidden in a heavily scattering random medium is used to determine positions and coherently image at high resolution and through an amount of scatter limited only by detector noise.
Compressive Spectroscopic Long-Wave Infrared Imaging
Authors: Charsley Jake M. , Rutkauskas Marius , Altmann Yoann , Smith Margaret , Young Christina , Reid Derryck T.
Published: August 2021

We report compressive spectroscopic imaging from 7–12 µm with a 4 cm-1 optical resolution, sampled at 25% of the Nyquist rate. Compressed measurements of plastics are presented with 640×512 pixels observed and reconstructed simultaneously.
Experimental Demonstration of Turbulence-Resilient Object Reconstruction by Optoelectronic Mixing of Sequentially Transmitted Pairs of Laguerre-Gaussian Modes
Authors: Hu Nanzhe , Zhang Runzhou , Song Haoqian , Du Jing , Su Xinzhou , Zhou Huibin , Song Hao , Pang Kai , Zou Kaiheng , Minoofar Amir , Tur Moshe , Willner Alan E.
Published: August 2021

We experimentally demonstrate turbulence-resilient object reconstruction by optoelectronic mixing of sequentially transmitted pairs of Laguerre-Gaussian (LG) modes to measure the object’s LG modal signature. The reconstructed object exhibits resilience to turbulence with D/r0 up to 4.5.
Quantitative Phase Contrast Imaging using Guided-mode Resonator Devices
Authors: Ji Anqi , Song Jung-Hwan , Li Qitong , Kik Pieter G. , Miller David A.B. , Brongersma Mark L.
Published: August 2021

We showcase the application of resonant flat optical elements as insertable angular filters that facilitate phase contrast imaging. With high accuracy direct angular filtering, quantitative phase contrast imaging is achieved akin to Fourier optics approaches.
Piezo-optomechanical Actuation of Nanobeam Resonators for Microwave-to-Optical Transduction
Authors: Guha Biswarup , Wu Marcelo , Song Jin Dong , Balram Krishna C. , Srinivasan Kartik
Published: August 2021

We demonstrate three methods for microwave actuation of GaAs nanobeam piezo-optomechanical resonators, based on interdigitated transducers, piezoelectric resonators, and micro-antenna structures. Potential applications of these devices range from bi-directional microwave-to-optical conversion to optomechanical thermometry.
Integrated Discrete-Time Surface Acoustic Wave Photonic Radio-Frequency Filters with Arbitrary Tap Weights
Authors: Katzman Moshe , Munk Dvir , Priel Maayan , Grunwald Etai , Hen Mirit , Zadok Avi
Published: August 2021

Integrated, discrete time microwave filters are realized in surface acoustic wave photonics over standard silicon on insulator. The magnitude and phase of each tap are adjusted independently. Twelve-tap filters with 5 MHz bandwidth are demonstrated.
Brillouin Detection of a Complete GHz Mechanical Band Gap
Authors: Florez O. , Arregui G. , Gomis-Bresco J. , Albrechtsen M. , Stobbe S. , Sotomayor Torres C. M. , Garcia P. D.
Published: August 2021

We measure a full mechanic gap in the GHz regime for a 2D phononic crystal over the entire Brillouin zone using the noninvasive Brillouin light scattering technique.
Silicon photonic MEMS phase shifter with μs time constant built on a foundry platform
Authors: Edinger Pierre , Kristinsson Kristofer , Errando-Herranz Carlos , Takabayashi Alain Yuji , Sattari Hamed , Quack Niels , Verheyen Peter , Bogaerts Wim , Gylfason Kristinn B.
Published: August 2021

MEMS enable low power tuners in silicon photonics, but existing phase shifters lack in range, speed, and loss. We implement a 2π phase shifter with a 1.54 μs time constant and 0.5 dB insertion loss in IMEC’s iSiPP50G platform.
High-yield, wafer-scale fabrication of ultralow-loss, dispersion-engineered silicon nitride photonic circuits
Authors: Liu Junqiu , Huang Guanhao , Wang Rui Ning , He Jijun , Raja Arslan S. , Liu Tianyi , Engelsen Nils J. , Kippenberg Tobias J.
Published: August 2021

For widespread applications of nonlinear photonic integrated circuits, ultralow optical losses and high fabrication throughput are required. Here, we present a CMOS fabrication technique for photonic microresonators with mean quality factors exceeding 30 millions and wafer-level yield.
High-Brightness Backward Terahertz-wave Parametric Oscillators for 3D Nondestructive Applications
Authors: Minamide Hiroaki , Nawata Kouji , Takida Yuma , Notake Takashi
Published: August 2021

We demonstrated novel phase-matching conditions of a tunable backward optical parametric down-conversion generating Terahertz-wave in a periodically poled lithium niobate. The cascading generation and threshold reduction by injection seeding provides high-brightness THz- wave emission.
Spectral broadening in chirped-pulse optical parametric oscillators based on KTiOAsO4
Authors: Heng Jiaxing , Liu Pei , Zhang Zhaowei
Published: August 2021

We report a chirped-pulse optical parametric oscillator based on a KTiOAsO4 crystal, generating light pulses with a bandwidth of 45.3 THz, twelve times as much as the parametric gain-bandwidth of the nonlinear crystal.
Spatially-chirped optical phased array design and its 10-m LiDAR operation
Authors: Shin Changgyun , Shin Dongjae , Byun Hyunil , Kim Jinmyoung , Lee Jisan , Lee Changbum , Son Kyung Hyun , Hwang Inoh , Shim Dongshik , Jang Bongyong , Lee Eun kyung , Choo Hyuck , Ha Kyoungho
Published: August 2021

Novel optical phased array design based on spatially-chirped spacing is presented for solid-state beam steering. Its 128-channel implementation achieved 2.1-dB higher side- mode suppression ratio compared to previous results. 10-m 3D depth imaging was also demonstrated.
22mJ Coherent Beam Combining from Three 85μm Core CCC Fiber Amplifiers
Authors: Rainville Alexander , Chen Mingshu , Whittlesey Mathew , Du Qiang , Galvanauskas Almantas
Published: August 2021

We demonstrate coherent beam combining of pulses from 3 chirally-coupled core optical fibers into a single 22mJ pulse, achieving >7mJ per channel combining and allowing for future temporal combination and compression at high energy.
High Peak-Power Pulse Amplification in Very-Large Mode-Area Er-doped Amplifiers
Authors: Nicholson J. W. , DeSantolo A. , Jin C. , Yan M. , Wisk P. , Monberg E. , Lukonin V. , Sun Y. , Niu M. , Goldberg Z.
Published: August 2021

We present nanosecond-pulse amplification in very-large mode-area amplifiers with varying Er absorptions and effective areas. Diffraction limited, 0.54 mJ pulses with 851 kW peak power in a 10 kHz pulse train at 1560 nm are achieved.
Demonstration of on-chip gigahertz acousto-optic modulation at near-visible wavelengths
Authors: Yu Yue , Wang Lai , Sun Xiankai
Published: August 2021

We demonstrated on-chip acousto-optic modulation at near-visible wavelengths on an etchless lithium niobate integrated platform. We obtained an intrinsic optical Q of 40,000 and measured acousto-optic modulation with the modulation frequency up to 2.44 GHz.
Two-photon Fiber STED Microscope Using Polarization Maintaining Fiber
Authors: Heffernan Brendan M. , Riley Peter , Supekar Omkar D. , Meyer Stephanie A. , George Nicholas M. , Restrepo Diego , Siemens Mark E. , Gibson Emily A. , Gopinath Juliet T.
Published: August 2021

We demonstrate a two photon (2P) fiber STED microscope in which the excitation and STED light are delivered to the sample in polarization maintaining (PM) fiber.
Light-driven graphene-based multifunctional actuator
Authors: Tiwari Anjani Kumar , Singh Vivek Kumar , Ramakrishna S. Anantha
Published: August 2021

We present a graphene-based actuator that is capable of performing multiple motions under uniform laser illumination. By varying the concentration of graphene nanoplatelets in the PDMS polymer, we control the actuator’s movement direction.
Be-doping assessment in Self-Catalyzed MBE Grown GaAs Nanowires
Authors: Ramaswamy Priyanka , Pokharel Rabin , Parakh Mehul , Jones Keith , Li Jia , Iyer Shanthi
Published: August 2021

We report on the Be-dopant assessment in Ga-assisted molecular beam epitaxially grown nanowires using conductive-atomic force microscopy, X-ray photoelectron spectroscopy, and ultraviolet photoelectron spectroscopy.
Forty-fold Speedup of NV− Center Magnetometry with Sequential Bayesian Experiment Design
Authors: Dushenko Sergey , Blakley Sean M. , Ambal Kapildeb , McMichael Robert D.
Published: August 2021

In magnetometry using quantum defects in diamond (NV− centers), we demonstrate forty-fold speedup with sequential Bayesian experiment design as compared with conventional NV- magnetometry using frequency-swept measurements.
Free-Running Dual-Comb Thin-Disk Laser Oscillator for Comb-Line-Resolved Spectroscopy
Authors: Modsching Norbert , Drs Jakub , Brochard Pierre , Fischer Julian , Schilt Stéphane , Wittwer Valentin J. , Südmeyer Thomas
Published: August 2021

We demonstrate the suitability of dual-comb thin-disk lasers for comb-line-resolved spectroscopy by measuring the absorption spectrum of acetylene. Operating with 240-fs, 6-8 W and 97-MHz, such sources are highly attractive for frequency-conversion into the mid-infrared.
Nonlinear pulse compression in double-pass multiple plate compression
Authors: Su Jia-Xuan , Chen Bo-Han , Guo Jhan-Yu , Chen Kai , Yang Shang-Da , Lu Chih-Hsuan
Published: August 2021

A new double-pass multiple plate compression (DPMPC) scheme is first demonstrated, compressing the pulse from 190 fs to 17.8 fs with 57 % throughput and good beam quality.
Narrowband microwave-photonic notch filtering using Brillouin interactions in silicon
Authors: Gertler Shai , Otterstrom Nils T. , Gehl Michael , Starbuck Andrew L. , Dallo Christina M. , Pomerene Andrew T. , Trotter Douglas C. , Lentine Anthony L. , Rakich Peter T.
Published: August 2021

We present narrowband RF-photonic filters in an integrated silicon platform. Using Brillouin interactions, the filters yield narrowband (∼MHZ) filter bandwidths with high signal rejection, and demonstrate tunability over a wide (∼GHz) frequency range.
High repetition rate detection with dual-comb Vernier frequency division in Microresonators
Authors: Yang Zijiao , Wang Beichen , Zhang Xiaobao , Yi Xu
Published: August 2021

A Vernier frequency division method is reported in this work to detect sub-THz microresonator soliton rep-rate. Our method vastly reduces the electrical bandwidth for rep-rate detection, and we stabilized 200 GHz rep-rate to a 1 GHz reference.
Towards an Integrated Exceptional Point Enhanced Ring Laser Gyroscope
Authors: Liu Yuzhou G. N. , Winoto Ardy , Hoefler Gloria E. , Christodoulides Demetrios N. , Khajavikhan Mercedeh
Published: August 2021

Utilizing the properties of exceptional points, we propose and demonstrate a new type of ring laser gyroscope on an active photonic integrated platform.
Photonic arbitrary linear transformations in the frequency synthetic dimension
Authors: Buddhiraju Siddharth , Dutt Avik , Minkov Momchil , Williamson Ian AD , Fan Shanhui
Published: August 2021

Arbitrary linear transformations are central to photonic quantum information processing and machine learning. We present a photonic architecture of time-modulated micro-ring resonators with tunable couplings between frequency modes to achieve arbitrary frequency-dimension linear transformations.
Quantum Information Hardware Based on Color Center Nanophotonics
Authors: Radulaski Marina , Norman Victoria A. , Majety Sridhar , Saha Pranta , Patton Jesse , Li Liang , Bell Miranda , Scalettar Richard
Published: August 2021

Color centers integrated into nanophotonic devices offer functionalities applied in quantum communication, simulation and computation. We explore various regimes of single-emitter and multi-emitter cavity quantum electrodynamics for applications in quantum information hardware.
Entangled Two-Photon Absorption in Commercial Fluorophores
Authors: Gäbler Tobias B. , Jain Nitish , León Torres Josue R. , Hendra Patrick , Gräfe Markus
Published: August 2021

Our study addresses the applicability of simple and common fluorophores for entangled two-photon fluorescence microscopy. Using CW-pumped SPDC waveguides, we can measure linear absorption rates of entangled photons in standard fluorophores in life science.
Two-Dimensional GeP-Based NIR Phototransistor
Authors: Dushaq Ghada , Rasras Mahmoud
Published: August 2021

we demonstrate a gate-tunable photodetector based on multilayerd 2D GeP. Results show high responsivity and relatively low dark current with stable, reproducible, and remarkable broadband spectral response from UV to optical communication wavelengths.
A Neuromorphic Graphene UV Phototransistor
Authors: Frydendahl Christian , Indukuri S.R.K. Chaitanya , Grajower Meir , Mazurski Noa , Shappir Joseph , Levy Uriel
Published: August 2021

We demonstrate an artificial neuron by integrating graphene with flash memory. The structure exhibits neural plasticity by doping graphene via trapped charges in a nitride layer, with potential applications in memory, tunable plasmonics, sensing, etc.
Ultrafast Ablation and the Role of Avalanche Ionization in Transition Metal Dichalcogenides
Authors: Solomon Joel M. , Yao Hsin-Yu , Lu Li-Syuan , Chang Wen-Hao , Her Tsing-Hua , Luo Chih-Wei
Published: August 2021

Avalanche ionization is shown to be the dominant carrier generation mechanism in the ultrafast ablation of transition metal dichalcogenides. Carrier densities reaching 22% of the total valence band population are needed for ablation to occur.
5D optical data storage with 100% readout accuracy in silica glass
Authors: Wang Huijun , Lei Yuhao , Wang Lei , Sakakura Masaaki , Yu Yanhao , Chang Xin , Shayeganrad Gholamreza , Kazansky Peter G.
Published: August 2021

5D optical data storage is realized in fused silica based on ultralow-loss birefringent nanopores (type X modification) by femtosecond laser writing. A book was recorded in 4-bit voxels with nearly 100% readout accuracy.
Control Interlayer Excitons in 2D Heterostructures with Acoustic Waves
Authors: Peng Ruoming , Zhu Jiayi , Xu Xiaodong , Li Mo
Published: August 2021

Propagating acoustic wave on the piezoelectric substrate carries strong piezoelectric field which can interact with the exciton in the MoSe2/WSe2 heterostructures. We observe GHz acoustic wave modulates the intensity of interlayer exciton’s photoluminescence and induces a blue shift of exciton emission energy.
Orbital-angular-momentum-based Detection of Internal Phase Motions in Optical Soliton Molecules
Authors: Zhao Yuwei , Fan Jintao , Song Youjian , Hu Minglie
Published: August 2021

We demonstrate an orbital angular momentum (OAM)-resolved diagnostics that maps the temporal phase difference to spatial interference pattern to extract the long-term relative phase evolution behaviors in femtosecond doublet and triplet soliton molecules.
Demonstration of Spectrally Recycled Space-Time Wave Packets
Authors: Hall Layton A. , Abouraddy Ayman F.
Published: August 2021

By spectrally recycling the spatial spectrum of a space-time wave packet, we circumvent the intrinsic correlation between the spatial and temporal bandwidths, thereby enabling ultra-low group velocities in free space at low numerical aperture.
THz Generation Using the Tilted Pulse Front Method in the Limit of Small Beam Sizes
Authors: Wulf F. , Vogel T. , Mansourzadeh S. , Hoffmann M. , Saraceno C. J.
Published: August 2021

We investigate THz generation using tilted pulse fronts with high power, high repetition rate driving lasers. It is shown that small beam sizes limit the maximum conversion efficiency due to spatial walk-off.
Intra-Cavity Broadband THz Generation Inside a Diode-Pumped Solid-State Laser Oscillator
Authors: Hamrouni Marin , Drs Jakub , Fischer Julian , Komagata Kenichi , Modsching Norbert , Wittwer Valentin J. , Labaye François , Südmeyer Thomas
Published: August 2021

We drive optical rectification in GaP directly inside a sub-100-fs Yb-oscillator at 22-W intracavity power and 7-W of pump power, leading to >10-fold increase of efficiency with respect to pump power compared to similar technologies.