bluuebunny/crossref_metadata_2025 huggingface dataset:
Sub-standard quantum limit estimation precision for a wide resources range
Authors: Cimini Valeria , Belliardo Federico , Polino Emanuele , Hoch Francesco , Piccirillo Bruno , Spagnolo Nicolò , Giovannetti Vittorio , Sciarrino Fabio
Published: July 2023

Quantum metrology protocols need to face several issues when implemented in realistic scenarios. Here, we experimentally demonstrate quantum-enhanced estiamtion precisions in both a single and multiparameter framework maintained for an exceptionally large range of resources.
Reentrant delocalization transition in one-dimensional photonic quasicrystals
Authors: Linn Kyle , Vaidya Sachin , Jörg Christina , Goh Megan , Rechtsman Mikael C.
Published: July 2023

We theoretically predict and experimentally observe that the localization of light in one-dimensional photonic quasicrystals is followed by a second delocalization transition on increasing quasiperiodic modulation strength - an example of a reentrant transition.
Multicenter and multiple elastic rescattering in CO2 molecules studied by carrier-envelope phase mapping
Authors: Mizuno T. , Yang T. , Kurihara T. , Kanai T. , Tolstikhin O. I. , Morishita T. , Itatani J.
Published: July 2023

We measure carrier-envelope phase (CEP)-dependent photoelectron momentum distributions (PEMDs) of CO2 with linearly-polarized sub-two-cycle near-infrared laser pulses, to discuss multicenter and multiple rescattering in a molecule.
Inverse Design of Plexcitonic Metasurfaces for Broadband Nonlinear Frequency Conversion
Authors: Almeida Euclides , Feinstein Matthew , Andronikides Alexander , Blechman Yael , Bartal Guy
Published: July 2023

Using inverse design, we demonstrate a plexcitonic metasurface of monolayer WS2 strongly coupled to gold nanoantennas. Broadband third-harmonic generation is attained over the entire plexcitonic frequencies. We discuss optimization strategies and implications for nonlinear photonics.
Massively degenerate coherent perfect absorption in flatband meta-optics
Authors: Choi Minho , Munley Christopher , Fröch Johannes , Majumdar Arka
Published: July 2023

The flatband dispersion of particular guided-mode resonance on silicon meta-optics can provide consistent coherent perfect absorption in the degenerate momentum space. This optics can provide perfect absorption regardless of the input spatial mode.
Cavity Optomechanics with WSe2 Single Photon Emitters
Authors: Patel Sahil D. , Parto Kamyar , Choquer Michael , Umezawa Sammy , Hellman Landon , Polishchuk Daniella , Moody Galan
Published: July 2023

We demonstrate surface acoustic wave cavity optomechanics with WSe2 single-photon emitters with modulated resonance linewidths indicative of deformation potential coupling. We observe dynamic fine-structure mixing that may enable entangled-photon pair generation from 2D materials.
Hyperbolic trend in optimization of high-order harmonic generation in gases
Authors: Weissenbilder Robin , Appi Elisa , Peschel Jasper , Nagyillés Balázs , Carlström Stefanos , Divéki Zsolt , Farkas Balázs , Plach Marius , Varjú Katalin , Kahaly Subhendu , Arnold Cord L. , Eng-Johnsson Per , L’Huillier Anne
Published: July 2023

We demonstrate, using analytic models, simulations and experiments, that efficient generation of high-order harmonics is possible across a large range of parameters, if the density and medium length follow a hyperbolic equation.
Attoclocked Many-Body Correlations in Quantum Materials
Authors: Borsch Markus , Freudenstein Josef , Meierhofer Manuel , Huber Rupert , Kira Mackillo
Published: July 2023

Theory–experiment advancements are demonstrated to resolve many-body correlations of quantum materials at attosecond time scales. Our theoretical analysis provides an exact view into the microscopic many-body dynamics presented intuitively via a Wigner-function analysis.
Disentanglement of Electronic and Structure Orders in Photoinduced Phase Transition of VO2
Authors: Sun Xiaoyi , Sun Shuaishuai , Gonzalezafanador Ian , Torres Gerardo Morales , Sepulveda Nelson Alancastro , Ruan Chong-Yu
Published: July 2023

Using a dual-probe setting to simultaneously obtain the structural and electronic responses upon photo-excitations we reveal a new many-body physics mechanism responsible for the insulator-metal phase transitions of VO2.
Reflectionless Scattering in Disordered Media
Authors: Davy Matthieu , Ferise Clément , Horodynski Michael , Kühmayer Matthias , Rotter Stefan , Félix Simon , Pagneux Vincent
Published: July 2023

Reflectionless (RL) states enable reflectionless coupling of light to a scattering sample. Here, we first observe exceptional points of RL states obtained by tuning the scattering strength in symmetric scattering samples. We then show that we can design anti-reflection structures to get perfect transmission even for disordered samples.
Coherent EUV - Soft X-ray Light with Continuous Red and Blue Wavelength Tunability
Authors: Popmintchev Dimitar , Imani Aref , Carpeggiani Paolo , Roman Joris , Wang Siyang , Yan Jieyu , Song Sirius , Shumakova Valentina , Kaksis Edgar , Flöry Tobias , Pugžlys Audrius , Baltuška Andrius , Popmintchev Tenio
Published: July 2023

We demonstrate bright, narrow-bandwidth, well-spaced (5 eV), high-order harmonics, continuously tunable towards higher and lower EUV – X-ray photon energies (>120 eV), ideal for resonant, ultrafast, coherent diffractive imaging at the absorption edges of ferromagnetic materials.
Experimental Validation of Deep Learning-based Models for Optical Time Domain Analysis
Authors: Devigili M. , Sequeira D. , Santos C. , Ruiz M. , Shariati B. , Costa N. , Napoli A. , Fischer J. K. , Pedro J. , Velasco L.
Published: July 2023

Optical constellations generated by Deep Learning models trained with datasets generated through simulation are compared to experimentally collected ones. The obtained high accuracy enables its application for optical time domain analysis in complex network scenarios.
Design and fabrication of a novel phase mask to inscribe fiber Bragg gratings for astronomical applications
Authors: Rahman Aashia , Siefke Thomas , Madhav Kalaga , Goebel Thorsten A. , Ghazagh Abdolnaser , Zeitner Uwe D. , Luo Xijie , Richter Daniel , Nolte Stefan , Roth Martin M.
Published: July 2023

A novel phase mask (PM) consisting of overlapped regions of more than one uniform pitch is fabricated using e-beam lithography. Design, fabrication of PMs, and filter characteristics are presented.
3 kW single-end forward-pumped fiber laser via pump recycler and oscillator length optimization
Authors: Lin Weixuan , Bussières-Hersir Marie-Hélène , Auger Mathieu , Vincelette André , Rochette Martin
Published: July 2023

We report a single end forward-pumped fiber laser with 3.03 kW record power. A pump recycler enhances pump absorption at 915 nm, and oscillator length is optimized to mitigate transverse mode instability.
Record High Throughput using Electronic 2×2 MIMO with OAM Multiplexing
Authors: Banawan Mai , Adibifard Ghazaleh , Mishra Satyendra K. , Bacon Nathalie , Guan Xun , Wang Lixian , LaRochelle Sophie , Rusch Leslie A.
Published: July 2023

We recover twelve channels (three OAM orders) at 1.3 km with electronic 2×2 MIMO. Per trials on three 50 GHz slots swept across the C-band, using 96 slots would achieve 65.5 Tb/s net rate.
Synthesizing ultrashort wave packets with broadband topological-spectral correlations
Authors: Piccardo Marco , de Oliveira Michael , Policht Veronica R. , Russo Mattia , Ardini Benedetto , Corti Matteo , Vieira Jorge , Manzoni Cristian , Cerullo Giulio , Ambrosio Antonio
Published: July 2023

We introduce shaping and characterization methods for femtosecond space-time beams with broadband correlations between their topological charges (up to ℓ = 80) and spectral frequencies (covering nearly 50% of the visible spectrum).
Ultralow-noise 22-GHz microwave generation from a fiber delayline-stabilized silica micro-comb
Authors: Kwon Dohyeon , Jeong Dongin , Jeon Igju , Lee Hansuek , Kim Jungwon
Published: July 2023

We demonstrate a compact fiber delayline-locked 22-GHz silica microcomb. The generated 22-GHz microwave signal has phase noise of –110 dBc/Hz at 1 kHz offset frequency and 10-13-level frequency instability within 1-s.
16 dBm bismuth-doped fiber laser at 1725 nm
Authors: Botzung Corentin , Monga Kaboko Jean-Jacques , LaRochelle Sophie
Published: July 2023

We demonstrate a continuous-wave ring-cavity bismuth-doped fiber laser emitting at 1725 nm. By optimizing the output coupling ratio to maximize the laser power, we obtain 16.1 dBm at a pump power of 511 mW.
Attosecond timing jitter from an all-PM Er:fiber laser on “optical cubes”
Authors: Zhao Minghe , Yang Ruoao , Jin Xingang , Chen Ziyang , Wang Aimin , Li Qian , Zhang Zhigang
Published: July 2023

We demonstrate a mode-locked 100 MHz Er:fiber laser on “optical cubes”, with which the repetition rate of the laser drifts within 300 Hz over 20 hrs. The measured timing jitter with BOC was 98.4 as.
Doubly-resonant metal-free aluminum nitride electro-optic modulator
Authors: Lipkowitz Steven T. , Grutter Karen E. , Murphy Thomas E.
Published: July 2023

Here we use the near field of a dielectric resonant antenna to modulate an on-chip aluminum nitride ring resonator. Using this device we demonstrate entirely metal-free electro-optic modulation at 15.1 GHz.
Low-loss heterogeneously integrated barium-titanate-on-silicon-nitride photonics
Authors: Riedhauser Annina , Snigirev Viacheslav , Lihachev Grigory , Wang Rui Ning , Churaev Mikhail , Caimi Daniele , Möhl Charles , Convertino Clarissa , Eltes Felix , Kippenberg Tobias J. , Seidler Paul
Published: July 2023

We present a hybrid barium titanate photonics platform exhibiting exceptionally low losses of 0.7 dB/cm and realize ring resonators with intrinsic quality factors exceeding 6×105. Measurement of V
π
L = 0.56 V·cm in electro-optic modulation experiments demonstrates the platform’s potential.
Silicon Ring Modulator Based Optical Phase Shifter
Authors: Alam Ahmed S. , Mikkelsen Jared C. , Poon Joyce K. S. , Aitchison J. Stewart
Published: July 2023

We demonstrate a silicon ring modulator-based phase shifter that combines the through and drop ports to achieve ~2π phase shift with a transmission variation of <0.97 dB in the wavelength range 1482-1500 nm.
Spectroscopy and Mode-locked Laser Operation of a Disordered Yb:Gd2SrAl2O7 Crystal
Authors: Zeng Huang-Jun , Loiko Pavel , Lin Zhang-Lang , Xue Wen-Ze , Zhang Ge , Yuan Feifei , Lin Zhoubin , Lexhoux Pauline , Camy Patrice , Petrov Valentin , Mateos Xavier , Lin Haifeng , Wang Li , Chen Weidong
Published: July 2023

We report on spectroscopy and mode-locked laser operation of a disordered aluminate crystal, Yb:Gd2SrAl2O7. 34-fs soliton pulses are generated at 1084.6 nm via soft-aperture Kerr-lens mode-locking with an average output power of 115 mW.
Ab initio Theory for Exceptional-Point Lasers and Periodic-Inversion Lasers
Authors: Gao Xingwei , He Hao , Sobolewski Scott , Hsu Chia Wei
Published: July 2023

We show that lasers near exceptional points have an oscillating population inversion that generates a frequency comb. We develop an ab-initio theory describing all steady-state properties of such lasers and validate it with FDTD.
Modeling of the Optical and Electrical Degradation of 845 nm VCSILs
Authors: Buffolo M. , Zenari M. , Fornasier M. , De Santi C. , Goyvaerts J. , Grabowski A. , Gustavsson J. , Kumari S. , Stassen A. , Morthier Geert , Baets R. , Larsson A. , Roelkens G. , Meneghesso G. , Zanoni E. , Meneghini M.
Published: July 2023

Optical and electrical degradation of novel micro-transfer-printed VCSILs is investigated. Modeling of experimental data suggests that the main degradation mechanism is represented by the relocation of impurities, originating from the p-side, toward the active region.
Surface-plasmon-enhanced strain-wave detection on segmented gratings
Authors: van den Hooven Thomas J. , Planken Paul C.M.
Published: July 2023

We report on surface-plasmon-polariton-enhanced measurements of strain-wave-induced time-dependent diffraction changes of a Au-covered, segmented grating. Surface Acoustic Waves and Longitudinal Waves are identified and enhanced by a factor of 15 and 4.6, respectively.
Intra-Pulse Intensity Noise Shaping by Saturable Absorbers
Authors: Edelmann Marvin , Pergament Mikhail , Kärtner Franz X.
Published: July 2023

We demonstrate ultrafast intra-pulse intensity noise shaping performed by saturable absorbers using chirped pulses. The resulting intra-pulse noise distributions are characterized experimentally and utilized for 12.5 dB noise suppression down to the shot-noise limit.
Hybrid Electro-Optic Crossbar Array for Matrix-Vector Multiplications
Authors: Brückerhoff-Plückelmann Frank , Bente Ivonne , Wendland Daniel , Feldmann Johannes , Wright C. David , Bhaskaran Harish , Pernice Wolfram
Published: July 2023

Photonic processors exploiting in-memory computing and wavelength multiplexing excel in calculating matrix-vector multiplications but are limited to small vector dimensions. We present a hybrid electro-optic crossbar array design which virtually increases the processable vector size.
Advanced Circular Dichroism Measurement Method with Circular Polarization Switching Dual-comb Spectroscopy
Authors: Zhu Ruichen , Nagasaki Ryota , Kato Takashi , Tian Haochen , Asahara Akifumi , Minoshima Kaoru
Published: July 2023

This study demonstrated well-controlled circular polarization switching dual-comb spectroscopy using coherent controllability of combs. Applicability of circular dichroism spectroscopy has been verified using circular polarizers. The developed method realizes high-sensitivity, high-speed, and broadband circular-dichroism characterizations.
Tm-doped Chirped-pulse-amplification Fiber Laser System at 1.9 µm
Authors: Xu Shutao , Turnali Ahmet , Lim Timothy , Sander Michelle Y.
Published: July 2023

We report a high-energy Tm-doped chirped-pulse-amplification fiber laser system seeded by dissipative solitons at 1902 nm. The system provides output pulses with a pulse energy of 120 nJ and a pulse duration of 940 fs.
Stable and Efficient Coherent Pulse Stacking Amplification of 81 Pulses with Four Channel Coherent Spatial Combining at 7mJ/Fiber
Authors: Rainville Alexander , Whittlesey Mathew , Pasquale Christopher , Jing Yanwen , Du Qiang , Galvanauskas Almantas
Published: July 2023

An integrated CPSA and CBC femtosecond fiber l aser s ystem temporally combines 81 pulses and spatially combines 4 amplifiers, achieving efficient amplifier energy extraction at 7mJ/fiber and 25mJ total, a record high energy per fiber.
Intracavity single-cycle THz generation inside a modelocked thin-disk laser
Authors: Wang Yicheng , Mansourzadeh Samira , Vogel Tim , Saraceno Clara J.
Published: July 2023

We demonstrate the generation of single-cycle THz pulses intracavity of a modelocked thin-disk laser using a simple and cost-efficient 50-µm thin LiNbO3 plate, reaching 1.2 mW THz average power from a compact and efficient setup.
Large scale Si3N4 Integrated Circuit for High-resolution Interferometric imaging
Authors: Zhang Yichi , Ravichandran Rijuta , Zhang Yujia , Ben Yoo S.J.
Published: July 2023

We design, fabricate and characterize a 4-layer 110mm×44mm Si3N4 PIC with long routing waveguides and arrayed waveguides gratings based on a wafer-scale integration process for a high-resolution interferometric imager with 1200nm~1600nm bandwidth.
Full-spectrum visible electro-optic modulator
Authors: Xue Shixin , Shi Zhimin , Ling Jingwei , Gao Zhengdong , Hu Qili , Zhang Kaibo , Valentine Gareth , Wu Xi , Staffa Jeremy , Javid Usman A. , Lin Qiang
Published: July 2023

We report a visible-band electro-optic modulator that can operate over the full visible spectrum of 400–700 nm, with a record low V
π
· L of 0.17V · cm.
Demonstration of a Large-Aperture, Multi-kW Gas-Cooled Faraday Rotator
Authors: Batysta František , Sistrunk Emily , Vella Anthony , Erdman Emily , Novák Jakub , Torrance Mike , Mambourg Joseph , Scerbak David , Byrne Conor , Rus Bedřich , Spinka Thomas M.
Published: July 2023

We demonstrate a large-aperture gas-cooled Faraday rotator designed to mitigate stress-induced depolarization in high-energy, high-power laser systems. Compensating for a surrogate depolarization plate at 3.3 kW, the rotator reduces the relative depolarized energy from 36% to 1%.
Single-Shot Wavefront Characterization of a High-Energy Focusing Beam Using a Phase-Diversity Grating
Authors: Bahk Seung-Whan , Sampat Siddharth , Heimbueger Matthew , Kwiatkowski Joseph , Bauer Katelynn A. , Waxer Leon J.
Published: July 2023

A single-shot wavefront characterization scheme using a 2-D holographic grating was demonstrated on the OMEGA laser. A phase-retrieval algorithm using multiple defocused spots cropped from a single frame returns a unique wavefront solution.
Nonlinear Polarization Rotation-Based Spectral Peaking Mode Filtering from Molecular Gas Absorption Spectra in Femtosecond Lasers
Authors: Jung Kwangyun , Kitajima Shotaro , Nishizawa Norihiko
Published: July 2023

We proposed mode-filtering technique of spectral peaks using nonlinear polarization rotation in optical fiber. Intense, narrow multiple spectral peaks with ~20 dB background ratio were successfully generated with CH4 gas cell and nonlinear fiber.
Robust Wavelength Control of Microresonator Parametric Oscillation with Nanophotonic Bandgaps
Authors: Brodnik Grant M. , Liu Haixin , Erikson James , Carlson David R. , Gopinath Juliet T. , Black Jennifer A. , Papp Scott B.
Published: July 2023

We demonstrate beyond-octave-span laser wavelength conversion from a 1060 nm pump via optical parametric oscillation in tantala microresonators. Robust control of phase-matching at near-zero-GVD by use of a nanophotonic bandgap enables realization of target wavelengths.
Freely Controllable Spectral Peak Generation Using 206 MHz All-PM Fiber Laser Comb and LCOS-SLM
Authors: Kitajima Shotaro , Jung Kwangyun , Nishizawa Norihiko
Published: July 2023

We demonstrated freely controllable spectral peak generation using 206 MHz figure-9 fiber laser comb, LCOS-SLM, and nonlinear fibers. Selected comb modes were extracted as the spectral peaks with high signal to background ratio >30 dB.
Femtosecond Chirped-Pulse Kerr Resonator Solitons
Authors: Dong Xue , Renninger William H.
Published: July 2023

Chirped-pulse solitons with femtosecond durations and record peak powers are demonstrated in passive fiber Kerr resonators featuring small-normal dispersion and a spectral filter.
Spatiotemporal characterization of structured few-cycle waveforms in the mid-infrared
Authors: Khatri Dipendra , Liu Yangyang , Gholam-Mirzaei Shima , Truong Tran-Chau , Staudte Andre , Corkum Paul B , Chini Michael
Published: July 2023

We demonstrate that multiphoton excitation in a CMOS image sensor can be used as a sub-cycle temporal gate, allowing the measurement of the full space, time, and polarization state of structured mid-infrared laser waveforms.
Near-Field Mapping of THz Polaritons Propagation in Quantum Materials
Authors: Pogna Eva A.A.
Published: July 2023

Near-field imaging is applied to investigate the terahertz collective excitations of thin films of topological insulators and black phosphorus. The experimentally observed THz polaritons support tunable and strongly confined electromagnetic modes with intriguing application perspectives.
Data class-specific imaging using diffractive computing
Authors: Bai Bijie , Luo Yi , Gan Tianyi , Hu Jingtian , Li Yuhang , Zhao Yifan , Mengu Deniz , Jarrahi Mona , Ozcan Aydogan
Published: July 2023

We present a privacy-preserving camera design that performs class-specific imaging of input objects only from the desired data class(es) while all-optically and instantaneously erasing the objects from the other data classes.
High-speed hyperspectral and phase-contrast THz imaging using differential chirped pulse down conversion
Authors: Stroud Jasper R. , Briggman Kimberly A. , Plusquellic David F.
Published: July 2023

We demonstrate a THz imaging system using chirped pulses to acquire amplitude and phase information of various samples, enabling hyperspectral imaging and axial optical path delay determination approximately 50x better than the diffraction limited lateral resolution.
Integrated photonic-electronic in-memory computing platforms
Authors: Dong Bowei , Zhou Wen , Li Xuan , Farmakidis Nikolaos , Aggarwal Samarth , Bhaskaran Harish
Published: July 2023

We present our recent progress in integrating photonic in-memory computing platforms with electronics to provide easier controls and better computing performance, specifically by integrating tunable phase shifters and doped silicon microheaters into the platform.
Real-time Nonlinear Pulse Evolution Dynamics in a Tm-doped Fiber Laser
Authors: Xu Shutao , Zeng Junjie , Sander Michelle Y.
Published: July 2023

We investigate the nonlinear pulse evolution dynamics in a Tm-doped fiber laser in real-time with a modified dispersive Fourier transform technique. Coherence degradation and recovery processes are analyzed with spectral intensity correlation maps.
Enabling MHz-Level Tailored Ultrafast Photoemission via Simultaneous Laser Mixing and Shaping
Authors: Lemons Randy , Hirschman Jack , Neveu Nicole , Duris Joseph , Marinelli Agostino , Durfee Charles , Carbajo Sergio
Published: July 2023

We present a novel, versatile framework to generate W-level temporally shaped UV picosecond pulses via non-colinear sum frequency generation and demonstrate it producing temporally flattop, high-power UV pulses capable of enhancing femtosecond- and attosecond-level X-ray free electron lasers.
Electro-Optically Switchable, Cross-Polarized Dual-Line Nd:YLF laser Based on Aperiodically Poled Lithium Niobate
Authors: Lin Cheng-Wei , Deng Lin-Ming , Pham Tien-Dat , Tseng Quan-Hsiang , Chen Yen-Hung
Published: July 2023

We report an electro-optically (EO) switchable source based on a domain-engineered LiNbO3 operating in a closely lying, cross-polarized dual-line Nd:YLF laser. Simultaneous EO spectral switching and Q-switching has been realized in such a novel system.
High-resolution meta-displays leveraging low-loss nonvolatile phase-change chalcogenides
Authors: Abdollahramezani Sajjad , Adibi Ali
Published: July 2023

Electrically switchable dual-view meta-displays with high-resolution, wide-gamut, and high-saturation features for dynamic image encryption and encoding are demonstrated by leveraging less-explored classes of low-loss optical phase-change chalcogenides, i.e., Sb2S3 and Sb2Se3.
Dual-Level Silicon Grating Coupler with a Record -0.8 dB Coupling Efficiency
Authors: Vitali Valerio , Bucio Thalía Domínguez , Lacava Cosimo , Marchetti Riccardo , Mastronardi Lorenzo , Rutirawut Teerapat , Churchill Glenn , Faneca Joaquín , Gates James C. , Gardes Frederic Y. , Petropoulos Periklis
Published: July 2023

We report the design, fabrication and experimental characterization of a dual-level grating coupler for a 220 nm thick silicon photonics platform with a record coupling efficiency of -0.8 dB without the use of any back-reflector.
Pockels Coefficients in Thin-Film Barium Titanate and Lithium Niobate up to 300 GHz
Authors: Chelladurai Daniel , Kohli Manuel , Horst Yannik , Winiger Joel , Moor David , Blatter Tobias , Kulmer Laurenz , Eppenberger Marco , Messner Andreas , Convertino Clarissa , Eltes Felix , Fedoryshyn Yuriy , Leuthold Juerg
Published: July 2023

The Pockels coefficients in thin-film barium titanate (BTO) and lithium niobate (LN) have been measured for modulating frequencies up to 300 GHz. BTO’s effective nonlinearity is ~10 times larger than LN’s with a small frequency dependence.
Low-channel-crosstalk silicon CWDM wavelength (de)multiplexer employing fabrication-tolerant cascaded MZIs with cross-port connection
Authors: Tseng Ching-Ju , Huang Po-Hsiang , Yen Tzu-Hsiang , Chen Chih-Hsien , Jou Chewn-Pu , Hung Yung
Published: July 2023

The combination fabrication-tolerant cascaded MZIs and cross-port connection scheme enables a broadband wavelength (de)multiplexer with -38.81±3.19 dB optical channel crosstalk and -0.212±0.6 nm wavelength deviation over 12-inch silicon-on-insulator wafer.
Coherent Add/Drop Multiplexing Using an Optic-Electronic-Optic Interferometer
Authors: Mahmud Md Salek , Matalla Patrick , Adib Md Mosaddek Hossain , Koos Christian , Randel Sebastian
Published: July 2023

We demonstrate add/drop multiplexing of optical QPSK signals using an optic-electronic-optic (OEO) interferometer with a processing path including opto-electronic coherent detection, real-time digital signal processing, and electro-optic complex field remodulation.
Degradation Processes and Aging in Quantum Dot Lasers on Silicon
Authors: Meneghini Matteo , Buffolo Matteo , Zenari Michele , De Santi Carlo , Herrick Robert W. , Shang Chen , Wan Yating , Feng Kaiyin , Hughes Eamonn , Bowers John , Meneghesso Gaudenzio , Zanoni Enrico
Published: July 2023

We discuss the physical processes for the degradation of quantum-dot lasers epitaxially grown on silicon. Through combined electro-optical measurements and deep-level transient spectroscopy, we conclude a pathway to obtain significant improvement in device lifetime.
High Finesse, Air-Gap Optical Reference Cavity for Low Noise Microwave Generation
Authors: Liu Yifan , Lee Dahyeon , Jin Naijun , McLemore Charles A. , Luo Yizhi , Kelleher Megan , Rakich Peter , Diddams Scott A. , Quinlan Franklyn
Published: July 2023

We lock two, 1.2 THz-spaced lasers to a million-finesse air-gap optical cavity, demonstrating 40 dB common-mode phase noise rejection and a path towards compact, low noise, optically derived microwaves without ultrahigh vacuum.
Back-Propagation-Free Photonic Deep Learning with Random Nonlinear Projection
Authors: Nakajima Mitsumasa , Inoue Katsuma , Tanaka Kenji , Kuniyoshi Yasuo , Hashimoto Toshikazu , Nakajima Kohei
Published: July 2023

We demonstrate back-propagation-free photonic deep learning by extending a biologically inspired training called direct feedback alignment. The potential for accelerated computation with competitive performance was confirmed through numerical simulation and optoelectric hardware implementation.
Mie-Resonant Anti-Reflection Microstructures for Long-Wave Infrared Transmission Optics
Authors: Brewer John , Raman Aaswath P.
Published: July 2023

We demonstrate that Mie resonant nanophotonic anti-reflection structures enable Silicon to function as an effective transmission optic over long-wave infrared wavelengths. This approach enables a window with 40% greater transmission than bare Si.
Identification of abnormal noise point in optical fiber link using nonlinear Fourier transform
Authors: Mishina Ken , Maruta Akihiro
Published: July 2023

We propose a novel sensing method to detect an abnormal noise point using the nonlinear Fourier transform. High estimation accuracy of the proposed method within 0.1 km is demonstrated by numerical simulation.
Spectrum-Based Selective Monitoring of Propagation Effects
Authors: Girard-Jollet J. , Antona J.-C. , Meseguer A. Carbó , Othman G. Rekaya-Ben , Lonardi M.
Published: July 2023

We propose a machine learning based method to estimate the proportion of inter-channel and intra-channel nonlinear effects. The model is tested with simulations over different power profiles, fiber attenuations, span lengths and chromatic dispersions.
Ultra-Compact Optical Convolutional Accelerators Based on Polarization-Independent Metasurfaces
Authors: Luo Mingcheng , Xiao Shuqi , Xu Tengji , Tsang Hon Ki , Shu Chester , Huang Chaoran
Published: July 2023

We experimentally demonstrate an optical metasurface-based convolutional accelerator with ultracompact volume, low crosstalk, and polarization insensitivity. The optical accelerator computes convolutions in the optical domain for energy-efficient and ultrafast imaging processing.
All-Optical Computing of a Group of Linear Transformations Using a Polarization Multiplexed Diffractive Neural Network
Authors: Li Jingxi , Hung Yi-Chun , Kulce Onur , Mengu Deniz , Ozcan Aydogan
Published: July 2023

We report the all-optical implementation of a group of arbitrary complex-valued linear transformations using a polarization multiplexed diffractive optical network that consists of spatially-engineered isotropic diffractive surfaces and pre-determined linear polarizer arrays.
Referenceless, Low-Coherence, Multimode Fiber Characterization
Authors: Morote M. Maestre , Plöschner M. , Mounaix M. , Komonen A.V , Carpenter J.
Published: July 2023

We demonstrate spatial and polarization control of low coherence light through a multimode fiber, and retrieve its broadest-band mode transmission matrix without the need for an external reference using high dimensional spatial state tomography of light.
Learning to control the complex light propagation through few-mode fiber without a reference wave
Authors: Rothe Stefan , Krause David , Zhang Qian , Pohle Dennis , Koukourakis Nektarios , Czarske Jürgen W.
Published: July 2023

We show reference-less transmission matrix measurements using a neural network operating with up to 23 modes in real-time. We use synthetic training data enabling optical predistortion through an SLM for light control through disordered media.
Superconducting Single-Photon Counting Pixels
Authors: Khan Saeed , Primavera Bryce A. , Mirin Richard P. , Nam Sae Woo , Shainline Jeffrey M.
Published: July 2023

We present single-photon counting pixels realized by the monolithic integration of superconducting-nanowire single-photon detectors with Josephson electronics. These pixels are scalable to large-format sensor arrays and are compatible with CMOS array readout architecture.
Ultra-fast Germanium Photodiodes (invited)
Authors: Lischke Stefan , Peczek Anna , Steckler Daniel , Morgan Jesse , Beling Andreas , Zimmermann Lars
Published: July 2023

A Ge-fin photodetector with unprecedented opto-electrical 3-dB bandwidths up to 265 GHz is demonstrated. Here, we review our work on ultra-fast Ge photodiodes and the versatility of our novel Ge-fin device concept.
Silicon Photonics Optimized for High-capacity Transmission
Authors: Rusch Leslie A. , Shi Wei
Published: July 2023

Silicon photonics modulators are versatile, low-cost solutions for high-speed transmission. We must, however, look beyond standard metrics and focus on regimes where system performance can gain the most from digital signal processing.
Neuromorphic Circuitry for Superconducting Optoelectronic Networks
Authors: Primavera Bryce A. , Khan Saeed , Mirin Richard P. , Nam Sae Woo , Shainline Jeffrey M.
Published: July 2023

We present superconducting optoelectronic circuits optimized for neuromorphic computing and demonstrate integrated synaptic memories and dendritic computation. The circuits process single-photon presynaptic inputs with analog Josephson circuitry for extreme scalability.
Interband Cascade Infrared Photodetectors Based on Ga-Free Superlattice Absorbers
Authors: Bader A. , Rothmayr F. , Khan N. , Jabeen F. , Koeth J. , Höfling S. , Hartmann F.
Published: July 2023

We present interband cascade infrared photodetectors based on InAs/InAsSb superlattice absorbers employing an alternative extraction path for photogenerated carriers. At 300 K specific detectivities ∗ ≈1⋅108 Jones were achieved for a cut-off wavelength of 9 µm.
Intermodal strong coupling and wideband, low-loss isolation in silicon
Authors: Zhou Yishu , Ruesink Freek , Gertler Shai , Cheng Haotian , Pavlovich Margaret , Starbuck Andrew L. , Leenheer Andrew J. , Pomerene Andrew T. , Trotter Douglas C. , Dallo Christina , Musick Katherine M. , Garcia Eduardo , Reyna Robert , Holterhoff Andrew L. , Gehl Michael , Kodigala Ashok , Eichenfield Matt , Otterstrom Nils T. , Lentine Anthony L. , Rakich Peter
Published: July 2023

We demonstrate wideband strong coupling between two photonic bands via electrically-driven acousto-optic scattering. Based on this system, we demonstrate a non-magnetic, low-loss (< 1 dB) and broadband (59 GHz 10 dB isolation bandwidth) optical isolator.
Visualizing Whispering-Gallery Modes through Second- Harmonic and Sum-Frequency Generation in Al0.4Ga0.6As- on-Insulator Microdisk Resonators
Authors: Tan Bo Xue , Poon Andrew W.
Published: July 2023

We report second-harmonic and sum-frequency generation in Al0.4Ga0.6As-on-insulator microdisk resonators at ~775 nm wavelengths. Our experiments reveal clear polygonal-shaped whispering-gallery mode profiles.
Self-assembled gratings in chalcogenide microresonators for ultralow-threshold integrated Brillouin lasers
Authors: Xia Di , Huang Jianteng , Luo Liyang , Li Yufei , Li Zhaohui , Zhang Bin
Published: July 2023

We present a reconfigurable selective mode splitting based on self-assembled refractive index grating in integrated GeSbS microresonators, enabling an efficient Brillouin laser with a record low threshold power of 0.46 mW in chalcogenide microresonators.
Mid-Infrared Crystalline Supermirrors for Optical Cavities with 231 000 Finesse
Authors: Truong Gar-Wing , Perner Lukas W , Winkler Georg , Catano-Lopez Seth B , Nguyen Catherine , Follman David , Heckl Oliver H , Cole Garrett D
Published: July 2023

We fabricate and characterize substrate-transferred single-crystal mirror coatings with 9.33 ± 0.17 ppm of transmittance and 4.27 ± 0.52 ppm of excess optical loss, corresponding to a transmission-loss dominated reflectance of 99.9986% at 4.45 µm.
2D Zero-Contrast Gratings for Unpolarized Transmission-Mode Mid-Infrared Bandpass Filtering
Authors: Russell Benjamin J. , Meng Jiajun , Crozier Kenneth B.
Published: July 2023

We demonstrate polarization insensitive mid-infrared spectral bandpass filters in a single-layer silicon on sapphire process. Guided mode resonances, excited via 2D cuboid gratings, produce bandpass features with experimentally measured Q-factors >127, within broad extinction bands.
All-Optical Control of Soliton Microcomb Repetition-Rate through a Second CW Laser
Authors: Wildi Thibault , Ulanov Alexander , Voumard Thibault , Ludwig Markus , Herr Tobias
Published: July 2023

Repetition-rate locking of soliton microcombs through the injection of an auxiliary continuous-wave laser in the spectral wing of the soliton is studied, resulting in significant phase-noise reduction and all-optical control.
Ionic Liquid-assisted Cavitation for Ultrafast Laser Micromachining
Authors: Canfield Brian K. , Allman John N. , Terekhov Alexander , Moeller Trevor M. , Costa Lino
Published: July 2023

We study the effects of cavitation-assisted ultrafast laser micromachining under ionic liquids, rather than traditional water immersion. Ionic liquids may serve to localize damage more precisely because their low vapor pressures inhibit cavitation.
Power Scaling in N2O-filled Hollow-core Fiber with Helium Buffer Gas
Authors: Truong Tran-Chau , Lantigua Christopher , Beetar John E , Nrisimhamurty M. , Khatri Dipendra , Chini Michael
Published: July 2023

Spectral narrowing and power reduction, resulting from the thermal effect of nonlinear molecules at high repletion rate, can be mitigated by adding helium buffer-gas in N2O-filled hollow-core fiber without changing the spectral phase.
Physics and Technology of Semiconductor Nanolasers
Authors: Ning Cun-Zheng
Published: July 2023

This tutorial deals with recent progress on semiconductor nanolasers. Both the basic physics of nanolasers and the technological aspects will be introduced and discussed systematically including key motivations, major results, potential applications, and remaining challenges.
Short-pulse generation from photonic-crystal lasers by direct sinusoidal modulation
Authors: Morita Ryohei , Inoue Takuya , Ishimura Shota , Nishimura Kosuke , Takahashi Hidenori , Tsuritani Takehiro , De Zoysa Menaka , Ishizaki Kenji , Suzuki Masatoshi , Noda Susumu
Published: July 2023

We numerically and experimentally investigate transient characteristics of photonic-crystal surface-emitting lasers with direct sinusoidal modulation toward high-speed, high-power, free-space optical communications. We demonstrate the generation of short-pulse trains with a watt-class peak power and a GHz-class repetition frequency synchronous to the electrical signal.
Arbitrary Electro-Optic Bandwidth and Frequency Control in Lithium Niobate Optical Resonators
Authors: Herrmann Jason F. , Dean Devin J. , Sarabalis Christopher J. , Ansari Vahid , Multani Kevin , McKenna Timothy P. , Witmer Jeremy D. , Safavi-Naeini Amir H.
Published: July 2023

We achieve 20x in-situ tuning contrast of bandwidth and resonant frequency in lithium niobate optical resonators. We present a general model to obtain the detuning and bandwidth of optical frequencies in this photonic system.
Photonic Neural Cellular Automata for Self-Organized Image Classification
Authors: Li Gordon H.Y. , Leefmans Christian R. , Williams James , Gray Robert M. , Parto Midya , Marandi Alireza
Published: July 2023

Neural networks based on Cellular Automata (CA) have recently yielded more robust, reliable, and parameter-efficient machine learning models. We experimentally demonstrate the first photonic implementation of CA which successfully performs image classification on the Fashion-MNIST dataset.
Image Restoration Using Optoelectronic Coherent Ising Machine
Authors: Mwamsojo Nickson , Lehmann Frederic , Merghem Kamel , Abib Ghalid , Frignac Yann , Benkelfat Badr-Eddine
Published: July 2023

We propose an optoelectronic Coherent Ising Machine implemented using off-the-shelf optical telecommunications devices for image denoising for the first time. Our hardware implementation yields clean images with a pixel error rate of 3%.
Self-injection Locked Microcombs in Photonic Crystal Microresonators
Authors: Ulanov Alexander , Pavlov Nikolay , Wildi Thibault , Jost John D. , Karpov Maxim , Herr Tobias
Published: July 2023

Self-injection locking to a photonic crystal ring-microresonator with tailored back-reflection is demonstrated for the first time. The chip-integrated system does not rely on random imperfection-based backscattering and permits deterministic and robust generation of single-soliton microcombs.
Optical data transmission using inverse-designed silicon multimode photonic circuits and spectrally flattened microcombs
Authors: Yang K.Y. , Shirpurkar C. , White A.D. , Zang J. , Chang L. , Ashtiani F. , Guidry M.A. , Lukin D.M. , Pericherla S.V. , Yang J. , Kwon H. , Lu J. , Ahn G.H. , Van Gasse K. , Jin Y. , Yu S.-P. , Briles T.C. , Stone J.R. , Carlson D.R. , Song H. , Zou K. , Zhou H. , Pang K. , Hao H. , Trask L. , Li M. , Netherton A. , Rechtman L. , Stone J.S. , Skarda J.L. , Su L. , Vercruysse D. , MacLean J.P.W. , Aghaeimeibodi S. , Li M.-J. , Miller D.A.B. , Marom D.M. , Willner A.E. , Bowers J.E. , Papp S.B. , Delfyett P.J. , Aflatouni E , Vučković J.
Published: July 2023

We demonstrate a 1.12-Tbps error-free data transmission throughout inverse- designed multimode photonic circuits using spectrally flattened microcombs as a multiwavelength laser source.
Soliton Microcombs at 1064 nm Enabled by a Nanophotonic Bandgap
Authors: Zang Jizhao , Spektor Grisha , Briles Travis C. , Brodnik Grant M. , Liu Haixin , Black Jennifer A. , Carlson David R. , Papp Scott B.
Published: July 2023

We demonstrate dark-soliton microcombs in the 1064 nm band, using a nanophotonic bandgap for tunable phase-matching in normal dispersion. Nanophotonic de-sign enables microcomb spectrum tailoring, here with fifty modes at 200 GHz spacing and 10 dB flatness.
Heterogeneously Integrated III–V-on-Lithium Niobate Lasers, LEDs and Photodetectors
Authors: Zhang Xian , Xu Mengyue , Liu Liu , Wang Ruijun , Cai Xinlun
Published: July 2023

Lithium niobate-on-insulator (LNOI) has become a very promising integrated photonics platform. Here we present the heterogeneous integration of InP-based semiconductor lasers, LEDs and photodetectors on LNOI waveguide circuits.
Improved Coherence of Mid-IR Quantum Cascade Laser Based Optical Frequency Combs via RF Injection
Authors: Huang Baichuan , Liu Jie , Kosan Nicholas , Dikmelik Yamac , Lascola Kevin , Wysocki Gerard
Published: July 2023

We present the performance improvement of mid-IR quantum cascade laser frequency combs by applying radio-frequency injection. The stability of combs has increased by an order of magnitude and comb coherence has also improved.
A plasmonic “rainbow” chip for intelligent spectrometer
Authors: Tua Dylan , Liu Ruiying , Zhou Lyu , Yang Wenhong , Song Haomin , Ying Leslie , Gan Qiaoqiang
Published: July 2023

Here we report a plasmonic “rainbow” chip for spectroscopic sensing. By analyzing a single image with deep neural network, this image-based system can precisely determine the spectroscopic and polarimetric information of the incident light.
Low-Loss High-Density Inverse-Designed Structures for High Power Signal Routing on Integrated Silicon Photonics Foundry Platforms
Authors: Slaby Joel B. , Hammond Alec M. , Ralph Stephen E.
Published: July 2023

We present inverse-designed compact multi-mode structures (bend, mode converter, and taper) for single-mode operation to enable low-loss, high power, and high-density signal routing with a demonstrated bend insertion loss of 0.48 dB on commercial foundry platforms.
Terahertz Beamsteering with Curved Metasurfaces
Authors: Shiri Yaseman , Guerboukha Hichem , Mittleman Daniel M.
Published: July 2023

We experimentally and numerically analyze the minimal change in beam direction of a terahertz metasurface as a function of radius of curvature. The metasurface is fabricated via hotstamping and has applications in wireless communications.
Circulator-free Thin-film Lithium Niobate Dispersion Compensator Using Chirped Bragg Grating
Authors: Huang Fujin , Xu Mengyue , Wang Jingyi , Cai Xinlun
Published: July 2023

We demonstrate an on-chip lithium niobate dispersion compensator based on chirped Bragg grating and multimode interferometer structure, featuring a dispersion value of 390 ps/nm/ m in a length of 0.54 mm, covering a 45 nm bandwidth.
Chaotic dynamics of a broad-area VCSEL
Authors: Bittner Stefan , Rontani Damien , Sciamanna Marc
Published: July 2023

We investigate the polarization, spatial, spectral and dynamic properties of a broad-area VCSEL in continuous-wave operation. The transverse and polarization mode competition results in a complex bifurcation scenario leading to chaotic dynamics.
Electrically driven lasing of a topological defect in a vertical cavity laser array
Authors: Gagel Philipp , Egorov Oleg , Dzimira Franciszek , Beierlein Johannes , Emmerling Monika , Wolf Adriana , Jabeen Fauzia , Schneider Christian , Höfling Sven , Klembt Sebastian
Published: July 2023

We present electrically driven lasing from a topological defect in a vertical cavity laser array, realizing a Su-Schrieffer-Heeger Hamiltonian. We investigate the threshold behavior and demonstrate a roadmap towards efficient topological laser devices.
Generation of High-order Harmonics with Tunable Helicity from Monolayer MoS2
Authors: Cabello Christian , Turkowski Volodymyr , Chini Michael
Published: July 2023

We investigate the high-order harmonic generation from monolayer MoS2 through time-dependent functional theory calculations. Studies suggest that harmonics generated from monolayer MoS2 with linearly polarized pulses have tunable helicity by means of carrier-envelope phase dependence.
First Demonstration of a cryogenic Silicon Organic Hybrid (SOH) Mach-Zehnder Modulator with a Sub-1V π-Voltage
Authors: Schwarzenberger A. , Kholeif H. , Kotz A. , Kuzmin A. , Mertens A. , Eschenbaum C. , Ramann G. , Zyskind J. , Lebby M. , Randel S. , Freude W. , Koos C.
Published: July 2023

We report on a cryogenic silicon-organic hybrid (SOH) Mach-Zehnder modulator (MZM) fea-turing a record-low π-voltage of Uπ = 0.92 V. We demonstrate PAM4 transmission at a symbol rate of 70 GBd, the highest value so far achieved for semiconductor-based cryogenic MZM.
Non-volatile electrically programmable integrated photonics with 5-bit operation based on phase-change material Sb2S3
Authors: Chen Rui , Fang Zhuoran , Perez Christopher , Miller Forrest , Kumari Khushboo , Saxena Abhi , Zheng Jiajiu , Geiger Sarah J. , Goodson Kenneth E. , Majumdar Arka
Published: July 2023

We report a hybrid phase-change mateial Sb2S3-silicon photonic tunable directional coupler, which exhibits low insertion loss (< 1.0 dB), large extinction ratio (> 10 dB), high endurance (> 1,600 switching events), and 32 operation levels.
Fully Tunable Fabry-Pérot Cavity on Silicon Photonic MEMS with 10 nW Static Power Consumption
Authors: Park Young J. , Her Man J. , Kim Dong U. , Choi Dong J. , Lim Min G. , Hong Myung S. , Han Sangyoon
Published: July 2023

We report on a fully tunable Fabry-Pérot cavity on the silicon photonic MEMS having only 10nW static power. Its resonance wavelength is tunable over the full FSR, and its transmissivity is tunable up to 3.8dB.
AlGaN Deep Ultraviolet Light-Emitting Diodes Performance Enhancement Strategy at Last Quantum Barrier
Authors: Memon Muhammad Hunain , Wang Danhao , Yu Huabin , Jia Hongfeng , Xiao Shudan , Sun Haiding
Published: July 2023

To "function" as an inimitable strategy to decrease electron leakage and boost electron and hole injection efficiency for effective radiative recombination, we propose a DUV LED device design with a band-engineered last quantum barrier.
A hertz-linewidth Erbium laser based on photonic integrated circuits
Authors: Qiu Zheru , Liu Yang , Ji Xinru , Lihachev Grigory , Riemensberger Johann , Wang Rui Ning , Kippenberg Tobias J.
Published: July 2023

We demonstrate a photonic integrated circuit-based Erbium laser by endowing an ultralow-loss silicon nitride integrated optical cavity with Erbium-based gain. The free-running laser achieves 50 Hz intrinsic linewidth, 17 mW output power, and 40 nm wavelength tuning.
Sub-kHz linewidth, high power, frequency agile photonic integrated E-DBR laser
Authors: Siddharth Anat , Lihachev Grigory , Wang Rui Ning , Ji Xinru , Qiu Zheru , Riemensberger Johann , Kippenberg Tobias J.
Published: July 2023

We demonstrate a novel class of lasers, based on the hybrid integration of an RSOA with an extended-distributed Bragg reflector (E-DBR) laser cavity implemented on a Si3N4 chip with microheaters. This enables us to reach sub-kHz laser linewidth with more than 30 mW output power and mode-hop free tuning range upto 62.4 GHz.
Impact of Mid-Spatial Frequency Errors in Stretcher Optics on the Temporal Contrast of Short Optical Pulses
Authors: Webb Benjamin , Bahk Seung-Whan , Bucht Sara , Dorrer Christophe , Feng Chengyong , Jeon Cheonha , Roides Richard , Bromage Jake
Published: July 2023

The impact of mid-spatial-frequency errors in stretcher optics on temporal contrast via spatiotemporal coupling is studied experimentally. Three Offner secondary mirrors are compared, clearly showing temporal contrast degradation resulting from magnetorheological finishing.
Integrated Parallel Chaos driven LiDAR System with High Interference Tolerance
Authors: Chen Ruixuan , Shen Bitao , Shu Haowen , Chang Lin , Xie Weiqiang , Liao Wenchao , Tao Zihan , Bowers John , Wang Xingjun
Published: July 2023

We introduce a chaotic microcomb based high interference-tolerance parallel LiDAR. Parallel chaos with record-high noise spectra beyond 7 GHz leads to sub-cm-level ranging accuracy. The intrinsic orthogonality permits single-pixel detection, greatly simplifying the system architecture.
Giant Deep-Ultraviolet Circular Dichroism in Synthetic Architectures of Ordered Carbon Nanotubes
Authors: Doumani Jacques , Lou Minhan , Dewey Oliver , Hong Nina , Fan Jichao , Baydin Andrey , Pasquali Matteo , Yomogida Yohei , Yanagi Kazuhiro , Saito Riichiro , Kono Junichiro , Gao Weilu
Published: July 2023

We demonstrate tunable, giant, and structure-induced deep-ultraviolet circular dichroism in macroscopically chiral assemblies of racemic carbon nanotubes prepared using two approaches: mechanical-rotation-assisted vacuum filtration and chiral stacking of aligned carbon nanotubes.
Colloidal Quantum Dot LEDs Package with Porous Microcarrier
Authors: Chang Ching , Lin Guan-Teng , Huang Chung-Ping , Lin Chien-Chung
Published: July 2023

The porous structured microcarrier powders were mixed with CQD/PDMS packages to improve the dispersion of CQD particles. When the traditional package suffers seriously in efficiency at high CQD loading, the microcarrier ones sustain its performance and win out.