bluuebunny/crossref_metadata_2025 huggingface dataset:
Mach-Zehnder Modulator using Membrane InGaAsP Phase Shifters and SOAs inside Interferometer Arms on Si Photonics Platform
Authors: Aihara Takuma , Hiraki Tatsurou , Fujii Takuro , Takeda Koji , Kakitsuka Takaaki , Tsuchizawa Tai , Matsuo Shinji
Published: March 2020

A Mach-Zehnder modulator having III-V membrane phase shifters and semiconductor optical amplifiers inside interferometer arms is heterogeneously integrated with Si waveguides. The device exhibits 6-dBm fiber output power and 40-Gbit/s NRZ modulations with clear eye-openings.
Low Return Loss Multicore Fiber-Fanout Assembly for SDM and Sensing Applications
Authors: Kopp V.I. , Park J. , Singer J. , Neugroschl D. , Gillooly Andy
Published: March 2020

SDM using uncoupled or coupled core multicore fibers promises to increase the bandwidth density in optical links. In addition, these fibers form a platform for various sensing systems, including 3D shape sensing. Both applications will be advanced by the low return loss fanout-multicore fiber assembly demonstrated here.
Record Ultra-high Full-fill Capacity Trans-Atlantic Submarine Deployment Ushering in the SDM Era
Authors: Mertz Pierre , Grubb Stephen , Rahn Jeffrey , Sande Warren , Stephens Marc , O’Connor James , Mitchell Matthew , Voll Stefan
Published: March 2020

A record capacity of 24 Tbps on a 6,644 km trans-Atlantic deployment using 16QAM is enabled by synthesized subcarriers, FEC gain sharing, multi-carrier wavelocking, and large-area, high dispersion fiber. Computer assisted optimization and automated protection facilitate full-fill deployments becoming prevalent as submarine cables enter the SDM era.
Enabling Techniques for Optical Wireless Communication Systems
Authors: Chow Chi-Wai , Yeh Chien-Hung , Liu Yang , Lai Yinchieh , Wei Liang-Yu , Hsu Chin-Wei , Chen Guan-Hong , Liao Xin-Lan , Lin Kun-Hsien
Published: March 2020

We summarized the recent progress of enabling techniques for the optical wireless communication (OWC) and visible light communication (VLC). Besides, we reported two high data-rate laser-diode (LD) based VLC systems. Several application scenarios using VLC were also discussed.
Network Performance Assessment of C+L Upgrades vs. Fiber Doubling SDM Solutions
Authors: Virgillito Emanuele , Sadeghi Rasoul , Ferrari Alessio , Borraccini Giacomo , Napoli Antonio , Curri Vittorio
Published: March 2020

We investigate on the network capacity enabled by C+L optical line systems (OLS) vs. fiber doubling showing that at optimal power, C+L OLS doubles the traffic of C-only with very-low penalty with respect to fiber doubling.
Novel Electro-optic Components for Integrated Photonic Neural Networks
Authors: Stark Pascal , Geler-Kremer Jacqueline , Eltes Felix , Caimi Daniele , Fompeyrine Jean , Offrein B. J. , Abel Stefan
Published: March 2020

We demonstrate PIC-based non-volatile optical synaptic elements, an essential building block in large non-von Neumann circuits realized in integrated photonics. The impact of non-idealities on the performance of a photonic recurrent neural networks is evaluated.
DSP-aided Telemetry in Monitoring Linear and Nonlinear Optical Transmission Impairments
Authors: Zhuge Qunbi , Liu Xiaomin , Lun Huazhi , Fu Mengfan , Yi Lilin , Hu Weisheng
Published: March 2020

DSP-aided telemetry within coherent receivers provide unprecedented capabilities to monitor linear and nonlinear optical transmission impairments. The recent progress of it is reviewed and discussed in the context of advanced network applications.
Low Complexity Soft Failure Detection and Identification in Optical Links using Adaptive Filter Coefficients
Authors: Varughese Siddharth , Lippiatt Daniel , Richter Thomas , Tibuleac Sorin , Ralph Stephen E.
Published: March 2020

We demonstrate an autoencoder scheme that utilizes readily available adaptive filter coefficients to accurately detect and identify soft-failures in optical links with >99% accuracy. Detected impairments include low OSNR, nonlinearity, ROADM filtering and adjacent-channel crosstalk.
Convolutional Recurrent Machine Learning for OSNR and Launch Power Estimation: A Critical Assessment
Authors: Cho Hyung Joon , Varughese Siddharth , Lippiatt Daniel , Ralph Stephen E.
Published: March 2020

Using waveforms from three distinct stages of signal demodulation, we assess performance, computational efficiency, and benefits of using convolutional recurrent neural networks to simultaneously and independently estimate OSNR and launch power within a multichannel system.
Temporal Resolution Enhancement in Quantum-Dot Laser Neurons due to Ground State Quenching Effects
Authors: Sarantoglou George , Skontranis Menelaos , Bogris Adonis , Mesaritakis Charis
Published: March 2020

We present experimental results for an all-optical quantum-dot neuron, biased to a ground-state quenching regime alongside emission from the excited state. This regime, allows reduction of the temporal width of spikes down to 500 ps and enhanced firing rate.
Microresonator-enhanced, Waveguide-coupled Emission from Silicon Defect Centers for Superconducting Optoelectronic Networks
Authors: Tait A. N. , Buckley S. M. , McCaughan A. N. , Chiles J. T. , Nam S. , Mirin R. P. , Shainline J. M.
Published: March 2020

Superconducting optoelectronic networks could achieve scales unmatched in hardware-based neuromorphic computing. After summarizing recent progress in this area, we report new results in cryogenic silicon photonic light sources, components central to these architectures.
Indium Phosphide Photonic Circuits on Silicon Electronics
Authors: Williams K.A. , Liu X. , Matters-Kammerer M. , Meighan A. , Spiegelberg M. , van der Tol J.J.G.M. , Trajkovic M. , Wale M.J. , Yao W. , Zhang X.
Published: March 2020

The intimate integration of photonics and electronics in transceivers facilitates energy-efficiency, bandwidth acceleration and a route to radical miniaturization. We present and implement a wafer-to-wafer integration method which combines electronic and photonic foundry technologies.
Data-mining-assisted resonance labeling in ring-based DWDM transceivers
Authors: Sun Peng , Hulme Jared , Seyedi Ashkan , Fiorentino Marco , Beausoleil Raymond
Published: March 2020

An algorithm using hierarchical clustering is proposed to label resonances in ring-based DWDM transceivers. By identifying missing resonances and split-peaks due to reflection, the algorithm enables binning of individual ring resonances by passive optical tests.
Experimental Comparison of Fiber Nonlinearity Mitigation: Intra-modal FWM versus Inter-modal FWM
Authors: Sackey Isaac , Schmidt-Langhorst Carsten , Schubert Colja , Fischer Johannes Karl , Freund Ronald
Published: March 2020

We experimentally compare fiber nonlinearity mitigation by optical phase conjugation based on either intra- or inter-modal four-wave mixing. When adjusted for same conversion efficiency, both realizations achieve similar performance in 800-km dispersion-managed single-mode fiber link.
Linear and Nonlinear Features of Few-mode Fibers with Partial Coupling among Groups of Quasi-degenerate Modes
Authors: Ferreira Filipe M.
Published: March 2020

We review different solution methods for the linear coupling operator in the coupled nonlinear Schrödinger equations for few-mode propagation. Models are compared for different differential mode delay and linear coupling regimes.
106 Gb/s Normal-Incidence Ge/Si Avalanche Photodiode with High Sensitivity
Authors: Shi Bin , Qi Fan , Cai Pengfei , Chen Xueping , He Zengwen , Duan Yanhui , Hou Guanghui , Su Tzungi , Li Su , Chen Wang , Hong Chingyin , Yu Rang-Chen , Pan Dong
Published: March 2020

106 Gb/s (53GBaud PAM4) normal-incidence Ge/Si APDs were demonstrated with sensitivities of -16.8 dBm. To our knowledge, this is the best sensitivity reported for 100G APD.
Scalable Arrays of 107 Gbit/s Surface-Normal Electroabsorption Modulators
Authors: Grillanda Stefano , Hu Ting-Chen , Neilson David , Basavanhally Nagesh , Low Yee , Safar Hugo , Cappuzzo Mark , Kopf Rose , Tate Alaric , Raybon Gregory , Adamiecki Andrew , Fontaine Nicolas , Earnshaw Mark
Published: March 2020

We demonstrate arrays of surface-normal electroabsorption modulators with ultrawide bandwidth (>>65 GHz), polarization insensitive response and ultralow total coupling loss to single-mode-fibers (0.7 dB). We show modulation up to 107 Gbit/s and packaging with arrayed-waveguide-gratings.
Fabrication-insensitive CWDM (De)multiplexer based on Cascaded Mach-Zehnder Interferometers
Authors: Yen Tzu-Hsiang , Hung Yung-Jr
Published: March 2020

We demonstrate a MZI-based (De)multiplexer that greatly reduces the spectral shift from 15.6±2.5 nm to 0.67±0.715 nm by employing narrow and wide waveguides in different arms of a MZI.
Photonic-Enabled Real-Time Frequency-Spectrum Tracking of Broadband Microwave Signals at a Nanosecond Scale
Authors: Konatham Saikrishna R. , Cortés L. R. , Chang J. H. , Rusch L. , LaRochelle S. , Azaña J.
Published: March 2020

We demonstrate real-time and gap-free continuous frequency-spectrum analysis of broadband (GHz-bandwidth) microwave signals with unprecedented nanosecond resolutions through an analog time-mapped spectrogram approach, enabling detection of frequency interferences and transients with durations down to ~5ns.
High-speed Visible Light Communication System Based on a Packaged Single Layer Quantum Dot Blue Micro-LED with 4-Gbps QAM-OFDM
Authors: Wei Zixian , Zhang Li , Wang Lei , Chen Chien-Ju , Pepe Alberto , Liu Xin , Chen Kai-Chia , Dong Yuhan , Wu Meng-Chyi , Wang Lai , Luo Yi , Fu H. Y.
Published: March 2020

We demonstrate a 3-meter 4-Gbps QAM-OFDM VLC system with 3.2×10-3 bit-error-rate (BER) by implementation of our own fabricated and packaged single layer quantum dot (QD) blue micro-LED with a record high 1.06 GHz modulation bandwidth.
Recovery of DC Component in Kramers-Kronig Receiver Utilizing AC-Coupled Photo-Detector
Authors: Bo Tianwai , Kim Hoon
Published: March 2020

We propose and demonstrate a simple DSP method for recovering the DC component in Kramers-Kronig receiver implemented by using AC-coupled photo-detector, without cumbersome DC sweeping nor bit-error-ratio calculation.
Parallel Implementation of KK Receiver Enabled by Heading-frame Architecture and Bandwidth Compensation
Authors: Liu Yuyang , Li Yan , Song Jingwei , Zhou Honghang , Yue Lei , Li Xiang , Luo Ming , Wu Jian
Published: March 2020

We propose an improved parallel KK receiver based on heading-frame architecture and bandwidth compensation. By adopting the proposed scheme, a 112-Gbit/s 16-QAM signal is successfully transmitted over 1440-km SSMF.
80-GBd Probabilistic Shaped 256QAM Transmission over 560-km SSMF Enabled by Dual-Virtual-Carrier Assisted Kramers-Kronig Detection
Authors: Li An , Peng Wei-Ren , Cui Yan , Bai Yusheng
Published: March 2020

We demonstrate transmission of 80-GBd probabilistic shaped 256QAM over 560-km SSMF, a record reach at 400-Gb/s line rate using single laser and direct detection, enabled by probabilistic constellation shaping and dual-virtual-carrier assisted Kramers-Kronig detection.
Experimental Demonstration of multiple Disaggregated OLTs with Virtualised Multi Tenant DBA, over General Purpose Processor
Authors: Slyne Frank , Coyle David , Singh Jasvinder , Sexton Rory , Ryan Brendan , Giller Robin , O’Hanlon Michael , Ruffini Marco
Published: March 2020

We demonstrate an Optical Line Terminal with fully softwarised data plane and virtual Dynamic Bandwidth Allocation in a sliceable, multi-tenant PON architecture. We evaluate performance results for 6 OLTs sharing the same general purpose processor.
Compact Differential Phase-Shift Quantum Receiver Assisted by a SOI / BiCMOS Micro-Ring Resonator
Authors: Vokić Nemanja , Milovančev Dinka , Boxleitner Winfried , Hübel Hannes , Schrenk Bernhard
Published: March 2020

We demonstrate a phase-selective and colorless quantum receiver assisted by a silicon-on-insulator microring, enabling a low 1.3% QBER at 5.3kb/s secure-key rate. No penalty incurs compared to a delay interferometer. BiCMOS 3D-integration is proven feasible.
Full C-band and Power Efficient Coupled-multi-core Fiber Amplifier
Authors: Wada Masaki , Sakamoto Taiji , Aozasa Shinichi , Imada Ryota , Yamamoto Takashi , Nakajima Kazuhide
Published: March 2020

A coupled 12-core fiber amplifier with the highest optical power conversion efficiency of 10.2% is achieved among the reported C-band cladding-pumped amplifiers. Potential as full C-band inline amplifier is confirmed using full coupled-core SDM link
Multi-Channel Equalization for Comb-Based Systems
Authors: Mazur Mikael , Schröder Jochen , Karlsson Magnus , Andrekson Peter A.
Published: March 2020

We propose and demonstrate a frequency comb-enabled joint DSP. With joint processing, the required guard-bands decreases and the optimal roll-off factor increases, reducing penalties from non-ideal transceiver electronics while simultaneously increasing the spectral efficiency.
800ZR+ DWDM Demonstration over 600km G.654D Fiber Enabled by Adaptive Nonlinear TripleX Equalization
Authors: Pittalà F. , Schaedler M. , Bluemm C. , Goeger G. , Calabrò S. , Kuschnerov M. , Xie C.
Published: March 2020

We demonstrate the feasibility of 800ZR+ by transmitting 32×96-GBaud DP-32QAM over 600km of G.654D fiber using a generic interoperability FEC. Superior performance is achieved by advanced nonlinear components compensation.
Micro-transfer-printed III-V-on-silicon distributed feedback lasers
Authors: Haq Bahawal , Kumari Sulakshna , Zhang Jing , Gocalinska Agnieszka , Pelucchi Emanuele , Corbett Brian , Roelkens Gunther
Published: March 2020

We report on III-V-on-silicon DFB lasers realized by micro-transfer-printing pre-fabricated III-V semiconductor optical amplifiers on a silicon waveguide circuit comprising a first-order quarter wave shifted grating. Single mode operation at 1530 nm is demonstrated.
45nm CMOS - Silicon Photonics Monolithic Technology (45CLO) for next-generation, low power and high speed optical interconnects
Authors: Rakowski Michal , Meagher Colleen , Nummy Karen , Aboketaf Abdelsalam , Ayala Javier , Bian Yusheng , Harris Brendan , Mclean Kate , McStay Kevin , Sahin Asli , Medina Louis , Peng Bo , Sowinski Zoey , Stricker Andy , Houghton Thomas , Hedges Crystal , Giewont Ken , Jacob Ajey , Letavic Ted , Riggs Dave , Yu Anthony , Pellerin John
Published: March 2020

GLOBALFOUNDRIES’ monolithic 45nm CMOS-Silicon Photonics 300mm high-volume manufacturing platform based on 45nm RF technology node, and optimized for high performance and low power short-reach optical interconnects for on-chip and chip-to-chip applications will be discussed.
102 Gbaud PAM-4 transmission over 2 km using a pulse shaping filter with asymmetric ISI and Thomlinson-Harashima Precoding
Authors: Li Xueyang , Xing Zhenping , Alam Md Samiul , Jacques Maxime , Plant David V.
Published: March 2020

We introduce the asymmetric-ISI pulse shaping filter with Tomlinson-Harashima precoding to increase the receiver RF swing, and demonstrate 102 Gbaud PAM-4 transmission over 2 km with a BER below 3.8×10-3 using linear equalizer at receiver.
Dual Use SDN Controller for Management and Experimentation in a Field Deployed Testbed
Authors: Yu Jiakai , Gutterman Craig , Minakhmetov Artur , Sherman Michael , Chen Tingjun , Zhu Shengxiang , Zussman Gil , Seskar Ivan , Kilper Daniel
Published: March 2020

An SDN controller is developed for both testbed management and experimentation for the optical x-haul network in the COSMOS testbed providing a service-on-demand and reconfigurable platform for 5G wireless experiments coupled with edge cloud services.
uABNO: A Cloud-Native Architecture for Optical SDN Controllers
Authors: Vilalta Ricard , de la Cruz Juan Luis , López-de-Lerma Arturo Mayoral , Martínez Victor LópezRicardo , Casellas Ramon , Muñoz Raul
Published: March 2020

We present a cloud-native architecture for Optical SDN Controllers based on ABNO architecture and gRPC interfaces, which is demonstrated and evaluated. Autoscaling mechanisms for high request loads and auto-healing support are evaluated.
Data Analytics Practice for Reliability Management of Optical Transceivers in Hyperscale Data Centers
Authors: Li Jianqiang , Wang Zhicheng , Wang Chunxiao , Chen Qin , Wang Peng , Lu Rui , Fu Songnian , Xie Chongjin
Published: March 2020

There are limitations when directly interpreting reliability information of optical transceivers from manufacturers to end users. Data analytics in a large optical transceivers’ population is studied for data center operators with a case study.
Silicon Photonics to Add 5G RoF Services to PONs Employing Carrier Reuse
Authors: Lyu Mingyang , Shi Wei , Rusch Leslie A.
Published: March 2020

We experimentally validate silicon photonics for passive optical networks enabling radio over fiber on wavelength slots. We detect an 8 GHz OFDM signal and five 125 MHz RF signals, and remodulate RoF onto a clean carrier.
Intelligent gain flattening of FMF Raman amplification by machine learning based inverse design
Authors: Chen Yufeng , Du Jiangbing , Huang Yuting , Xu Ke , He Zuyuan
Published: March 2020

We report an intelligent gain flattering method for rapid, precise and objective-driven FMF Raman amplifier design, by using machine learning based inverse design method to optimize the pump wavelengths, powers and mode contents.
Load aware Raman gain profile prediction in dynamic multi-band optical networks
Authors: Brusin A. Margareth Rosa , de Moura Uiara C. , D’Amico Andrea , Curri Vittorio , Zibar Darko , Carena Andrea
Published: March 2020

We introduce a load aware machine learning method for prediction of Raman gain profiles. It enables future network controllers to manage seamless upgrades toward multi-band optical line systems with dynamic loads.
Neural Network-based equalization in high-speed PONs
Authors: Yi Lilin , Liao Tao , Xue Lei , Hu Weisheng
Published: March 2020

We introduce neural network (NN)-based equalization in high-speed passive optical networks. Data feature engineering is proposed to improve performance of NN-based equalization. Besides, an unsupervised learning scheme for NN-based equalizer is proposed to train the model without known symbols of received signal.
Artificial Intelligence for Optical Networks
Authors: Bhattacharya Shirshendu , Schmogrow Rene , Cantono Mattia
Published: March 2020

Artificial Intelligence may provide solutions to problems previously not solvable using conventional techniques. In this paper, we discuss potential AI applications related to challenges in optical networks.
Monolithic Polarization Controller on Regrowth-Free InGaAsP/InP Platform with Strained MQW Layer
Authors: Ito Maiko , Okawa Kosuke , Suganuma Takahiro , Tanemura Takuo , Nakano Yoshiaki
Published: March 2020

Carrier-injection-based polarization controller with strained MQW layer is demonstrated. Based on novel design concept, both polarization-rotating and phase-shifting sections are integrated monolithically on regrowth-free InGaAsP/InP platform to achieve efficient conversion over the entire Poincaré sphere.
III-V micro- and nano-lasers grown on silicon emitting in the telecom band
Authors: Lau Kei May , Han Yu , Zhu Si , Luo Wei , Xui Ying
Published: March 2020

We present our recent effort on the integration of 1.5 µm III-V micro-cavity lasers on (001) Si wafers, and bufferless nano-lasers on (001) silicon-on-insulators (SOI) via direct hetero-epitaxy by metal organic chemical vapor deposition.
Advanced Nonlinear Perturbation Theory in Coherent WDM Systems
Authors: Ghazisaeidi Amirhossein
Published: March 2020

We review the theoretical efforts to develop models to analyze fiber-optic coherent systems using perturbation analysis. We start with models for the nonlinear signal-signal distortions and continue to address nonlinear signal-noise interactions and SOA-induced distortions.
Demonstration of 3,010 km WDM Transmission in 3.83 THz Bandwidth Using SOAs
Authors: Mazurczyk Matthew V , Cai Jin-Xing , Paskov Milen , Patterson William W , Sinkin Oleg V , Hu Yue , Davidson Carl R. , Corbett Patrick C , Hammon Timothy E , Bolshtyansky Maxim A , Foursa Dmitri G , Pilipetskii Alexei N
Published: March 2020

We transmit 5.53Tb/s over 3,010km using SOAs, ultralow-loss fibers (0.145dB/km) and a new coded modulation format with SE=1.5 b/s/Hz. C-band transmission capacity in a ~602km circulating loop testbed with 3.83THz bandwidth is confirmed with FEC.
Experimental and Theoretical Analyses of GAWBS Phase Noise in Multi-core Fiber for Digital Coherent Transmission
Authors: Takefushi Naoya , Yoshida Masato , Kasai Keisuke , Hirooka Toshihiko , Nakazawa Masataka
Published: March 2020

We present the phase noise caused by guided acoustic-wave Brillouin scattering (GAWBS) in a 125-µm four-core-fiber. Phase noise induced by higher-order TR
n
,
m
modes was found to be dominant rather than that of the R0,
m
mode.
Generative Deep Learning Model for a Multi-level Nano-Optic Broadband Power Splitter
Authors: Tang Yingheng , Kojima Keisuke , Koike-Akino Toshiaki , Wang Ye , Wu Pengxiang , Tahersima Mohammad , Jha Devesh , Parsons Kieran , Qi Minghao
Published: March 2020

A novel Conditional Variational Autoencoder (CVAE) model with the adversarial censoring is presented to help to generate the 550nm broad bandwidth (1250nm to 1800nm) power splitter with arbitrary splitting ratio.
Wavefront-matching-method-designed six-mode-exchanger based on grating-like waveguide on silica-PLC platform
Authors: Fujisawa Takeshi , Sakamoto Taiji , Miyata Masashi , Matsui Takashi , Hashimoto Toshikazu , Kasahara Ryoichi , Nakajima Kazuhide , Saitoh Kunimasa
Published: March 2020

A first six-mode exchanger based on one sidewall grating-like waveguide is successfully designed with the help of strong optimization algorithm. Fabricated device compensates for mode-dependent-loss caused by fiber-waveguide junctions, showing the proof-of-concept operation.
Symmetrical 50-Gb/s/λ PAM-4 TDM-PON at O-band Supporting 26 dB+ Loss Budget using Low-bandwidth Optics and Semiconductor Optical Amplifier
Authors: Zhang Jiao , Wang Kaihui , Wei Yiran , Zhao Li , Zhou Wen , Xiao Jiangnan , Liu Bo , Xin Xiangjun , Yu Jianjun
Published: March 2020

We experimentally demonstrated a symmetrical 50-Gb/s/λ PAM-4 TDM-PON in O-band to support over 26 dB link loss budget, with the using of simple DSP and SOA. The performances of DSP and dispersion tolerance are studied.
Demonstration of 50-Gb/s/λ PAM-4 PON with Single-PD using Polarization-Insensitive and SSBI Suppressed Heterodyne Coherent Detection
Authors: Li Haibo , Luo Ming , Li Xiang , Yu Shaohua
Published: March 2020

A polarization-insensitive heterodyne coherent detection with single-PD for 50-Gb/s/λ PAM-4 PON is experimentally demonstrated. Over 40- and 39-dBm power budgets are achieved after 20-/50-km SSMF transmission under 7% FEC threshold, respectively.
50G PON FEC Evaluation with Error Models for Advanced Equalization
Authors: Mahadevan Amitkumar , van Veen Doutje , Kaneda Noriaki , Duque Alex , de Lind van Wijngaarden Adriaan , Houtsma Vincent
Published: March 2020

Post-equalization bit-errors from ISI-impaired 50G PON transmission experiments are modeled using Fritchman’s Markov chain. LDPC FEC evaluation with this error model reveals a 0.3-0.6 dB optical power penalty for equalizing ISI including 83 ps/nm dispersion.
Single-Carrier 500Gb/s Unrepeatered Transmission over a Single 431km Span with Single Fiber Configuration
Authors: Xu Jian , Hu Qianggao , Sun Shujuan , Yu Jiekui , Liu Jiasheng , Luo Qing , Wang Wenzhong , Huang Liyan , Long Han , Zhou Hongyan , Zhang Lei
Published: March 2020

We demonstrate record single-carrier 500Gb/s unrepeatered transmission over a single span of 431km with single fiber configuration, using optimized high-order Raman pump, forward and backward ROPAs, and optimal modulation format while using the same single ultra low loss with large effective area fiber for both signal and pumps.
Coherent Technologies and Requirements in Next-Generation MSO Networks
Authors: Schmitt Matthew
Published: March 2020

Cable MSO networks are undergoing a fundamental shift from centralized to distributed architectures, and from analog to digital optics. Interoperable coherent optics based on CableLabs specifications can serve as a key part of that transition.
Soft-Failure Localization and Device Working Parameters Estimation in Disaggregated Scenarios
Authors: Barzegar S. , Virgillito E. , Ruiz M. , Ferrari A. , Napoli A. , Curri V. , Velasco L.
Published: March 2020

A soft-failure localization and key working parameters estimation system is proposed for network diagnosis and maintenance. We show that a double analysis of monitoring data and estimated working parameters greatly anticipates degradations.
Distributed Measurement of Mode Dispersion of SDM Fibers
Authors: Ohno Shingo , Toge Kunihiro , Iida Daisuke , Manabe Tetsuya
Published: March 2020

Nondestructive methods for measuring the mode dispersion distribution of SDM fiber that utilize Rayleigh backscattering observed with coherent optical frequency-domain reflectometry are reviewed. Experiments on few-mode and coupled multicore fibers are presented.
Characterization and Optical Compensation of LP01 and LP11 Intra-modal Nonlinearity in Few-Mode Fibers
Authors: Da Ros Francesco , Kaminski Pawel M. , Rademacher Georg , Puttnam Benjamin J. , Luis Ruben S. , Klaus Werner , Furukawa Hideaki , Maruyama Ryu , Aikawa Kazuhiko , Morioka Toshio , Oxenløwe Leif K. , Wada Naoya , Galili Michael
Published: March 2020

Intra-modal four-wave mixing (FWM) and all-optical compensation by optical phase conjugation is investigated over 2-spans of 3-mode fiber with the power of the generated FWM products reduced by 5 to 20 dB in different scenarios.
Simultaneous Optical Fiber Sensing and Mobile Front-Haul Access over a Passive Optical Network
Authors: Huang Yue-Kai , Ip Ezra
Published: March 2020

We demonstrate a passive optical network (PON) that employs reflective semiconductor optical amplifiers (RSOAs) at optical network units (ONUs) to allow simultaneous data transmission with distributed fiber-optic sensing (DFOS) on individual distribution fibers.
Ultra-small Optical Fiber Fabry-Pérot Cavities Fabricated by Laser-Induced Photothermal Effect
Authors: Choi Jiwon , Son Gyeongho , Jin Yeonghoon , Yu Kyoungsik
Published: March 2020

We proposed the HF etching method using laser-induced photothermal effect and found that curvatures of cavities can affect its Q-factor. We also show the potential for the novel metal (Ag) coating process for the cavity surface.
What if AI Fails: Protection against Failure of AI-Based QoT Prediction
Authors: Guo Ningning , Li Longfei , Xiang Lian , Bose Sanjay Kumar , Shen Gangxiang
Published: March 2020

We propose and simulate a new mechanism to protect against the failure of AI-based QoT prediction by assigning OSNR margins for working lightpath using the AI-based prediction method and for protection lightpath using the traditional, conservative method. This guarantees reliability of lightpath services, while not significantly increasing network spectrum resources used.
ASIC Design Exploration for DSP and FEC of 400-Gbit/s Coherent Data-Center Interconnect Receivers
Authors: Fougstedt Christoffer , Gustafsson Oscar , Bae Cheolyong , Börjeson Erik , Larsson-Edefors Per
Published: March 2020

We perform exploratory ASIC design of key DSP and FEC units for 400-Gbit/s coherent data-center interconnect receivers. In 22-nm CMOS, the considered units together dissipate 5 W, suggesting implementation feasibility in power-constrained form factors.
Novel Compressed Digital Radio Fronthaul over Photonically-generated THz Wireless Bridge
Authors: Li Tongyun , Gonzalez-Guerrero Luis , Shams Haymen , Renaud Cyril , Seeds Alwyn J. , Fice Martyn , White Ian , Penty Richard
Published: March 2020

Compressed DRoF-based fronthaul links enable cost-effective last-mile wireless coverage. This paper demonstrates a novel system which carries 12 LTE services over both optical fibre and photonically-generated THz wireless links with over 40 dB dynamic range.
RF Fading Circumvention Using a Polarization Modulator for Supporting W-Band RoF Transport from 85 to 95 GHz
Authors: Shiu Run-Kai , Su Shang-Jen , Chen You-Wei , Zhou Qi , Chiu Justin , Shao Guan-Ming , Zhao Li , Peng Peng-Chun , Chang Gee-Kung
Published: March 2020

RF fading in an RoF system is circumvented by managing the frequency notch through the control of a polarization modulator. W-band signals centralized at 90 GHz with 10GHz operation bandwidth are fully utilized with stable EVM performance.
Optical Labelling and Performance Monitoring in Coherent Optical Wavelength Division Multiplexing Networks
Authors: Yang Chao , Li Xiang , Luo Ming , He Zhixue , Li Haibo , Li Cai , Yu Shaohua
Published: March 2020

We propose and experimentally demonstrate an optical labelling scheme in coherent optical WDM network to simultaneously recognize labels in each wavelength and monitor the OSNR using only one photodetector based on subcarrier index modulation technology.
Reduction in Complexity of Volterra Filter by Employing ℓ0-Regularization in 112-Gbps PAM-4 VCSEL Optical Interconnect
Authors: Lin Yi-Yu , Chen Chun-Jui , Nguyen Hong-Minh , Chuang Chun-Yen , Wei Chia-Chien , Chen Jyehong , Shi Jin-Wei
Published: March 2020

We employ ℓ0-regularization to reduce Volterra filter complexity by up to 90% in 112-Gbps PAM-4 VCSEL transmission. Compared to ℓ1-regularization, ℓ0-regularization achieves lower complexity and more precise weights without retraining after sparse identification.
A tunable mode divider based on wavelength insensitive coupler using thermo-optic effect for gain-equalization in MDM network
Authors: Nakamura Kodai , Fujisawa Takeshi , Sakamoto Taiji , Matsui Takashi , Nakajima Kazuhide , Saitoh Kunimasa
Published: March 2020

A tunable TE0-TE1 mode divider based on wavelength-insensitive-coupler is experimentally demonstrated for the first time. Arbitrary branching ratios can be realized by using thermo-optic heaters. The proposed device is useful for gain-equalization in MDM networks.
Large-area Metalens Directly Patterned on a 12-inch Glass Wafer using Immersion Lithography for Mass Production
Authors: Zhong Qize , Dong Yuan , Li Dongdong , Li Nanxi , Hu Ting , Xu Zhengji , Zhou Yanyan , Lai Keng Heng , Fu Yuan Hsing , Bliznetsov Vladimir , Lee Hou-Jang , Loh Wei Loong , Zhu Shiyang , Lin Qunying , Singh Navab
Published: March 2020

We developed a technology to directly process 12-inch glass wafers using 193 nm immersion lithography for metasurface devices fabrication. An 8-mm-dimeter metalens working at 940 nm wavelength has been demonstrated as a proof-of-concept functional device.
Demonstration of Containerized vDU/vCU Migration in WDM Metro Optical Networks
Authors: Feng Jiaxin , Zhang Jiawei , Xiao Yuming , Ji Yuefeng
Published: March 2020

We experiment on a containerized vDU/vCU migration for load balancing among processing pools over WDM metro networks. Two stateful migration strategies to reduce migration time are verified on a converged edge access network platform.
SOH Mach-Zehnder Modulators for 100 GBd PAM4 Signaling With Sub-1 dB Phase-Shifter Loss
Authors: Kieninger Clemens , Füllner Christoph , Zwickel Heiner , Kutuvantavida Yasar , Kemal Juned N. , Eschenbaum Carsten , Elder Delwin L. , Dalton Larry R. , Freude Wolfgang , Randel Sebastian , Koos Christian
Published: March 2020

We demonstrate 280 µm-long silicon-organic hybrid (SOH) modulators with optical phase-shifter losses of 0.7 dB and π-voltages of 1.5 V. We show OOK and PAM4 signaling at 100 GBd with a BER below the 7% HD-FEC limit.
Efficient Classification of Polarization Events Based on Field Measurements
Authors: Guan Kyle , Simsarian Jesse E. , Boitier Fabien , Kilper Dan , Pesic Jelena , Sherman Michael
Published: March 2020

We present rare-event classification of polarization transients based on field measurements with data augmentation combined with robot-generated fiber-disturbance data. We compare machine learning methods for accuracy and required number of training sample traces.
1.1 Tb/s/λ at 9.8 bit/s/Hz DWDM transmission over DCI distances supported by CMOS DACs
Authors: Buchali Fred , Lauinger Vincent , Chagnon Mathieu , Schuh Karsten , Aref Vahid
Published: March 2020

We report on a 16-nm CMOS DAC based transmitter optimization enabling bitrates up to 1.15 Tb/s. We successfully demonstrate DWDM transmission over DCI distances up to 118 km at 1.1 Tb/s and spectral efficiencies of 9.8 bit/s/Hz.
Femtosecond laser fabricated all-multicore-fiber parallel Fabry-Perot interferometers for dual-parameter sensing
Authors: Zhang Cong , Fu Songnian , Tang Ming , Liu Deming
Published: March 2020

We demonstrate all-multicore-fiber parallel Fabry-Perot interferometers (FPIs) with individually variable cavity length of 26-61μm by femtosecond laser selective micro-machining and fiber fusion splicing, leading to the successful mitigation of cross-sensitivity arising in dual-parameter sensing.
A CMOS Compatible Monolithic Fiber Attach Solution with Reliable Performance and Self-alignment
Authors: Peng Bo , Barwicz Tymon , Sahin Asli , Houghton Thomas , Hedrick Brittany , Bian Yusheng , Rakowski Michal , Hu Shuren , Ayala Javier , Meagher Colleen , Sowinski Zoey , Nummy Karen , Stricker Andy , Lubguban Jorge , Chen Hui , Fasano Benjamin , Melville Ian , Wu Zhuo-jie , Cho Jae Kyu , Jacob Ajey , Riggs Dave , Berger Daniel , Letavic Ted , Yu Anthony , Pellerin John , Giewont Ken
Published: March 2020

We report a fiber-attach solution interfacing self-aligned, standard-cleaved fibers to monolithic photonic integrated circuits, fabricated in Globalfoundries 300-mm CMOS production facilities. Statistical yield analysis and reliability assessment were performed to demonstrate the robustness of the proposed solution.
Beyond 100-Gb/s Direct-detection Transmission using an Optical Receiver Co-integrated with a 28-nm CMOS Gain-tunable Fully-differential TIA
Authors: Hong Yang , Li Ke , Lacava Cosimo , Liu Shenghao , Thomson David J. , Meng Fanfan , Ruan Xiaoke , Zhang Fan , Reed Graham T. , Petropoulos Periklis
Published: March 2020

We demonstrate up to 173.22-Gb/s direct-detection transmission using a balanced photodetector wire-bonded to a 28-nm CMOS fully-differential gain-tunable TIA. Both 100-Gb/s PAM4 and capacity-maximized adaptively-loaded DMT are studied for up to 2-km SSMF transmission.
Demonstration of SOA-based IM/DD 1T (280Gbit/s×4) PS-PAM8 Transmission over 40km SSMF at O-band
Authors: Wang Kaihui , Zhang Jiao , Zhao Mingming , Zhou Wen , Zhao Li , Xiao Jiangnan , Zhao Feng , Zhang Yun , Liu Bo , Xin Xiangjun , Dong Ze , Yu Jianjun
Published: March 2020

We experimentally demonstrate a four-lane O-band IM/DD system. With the aid of semiconductor optical amplifiers and probabilistic shaping, a record bit rate of 1.12Tb/s (280Gbit/s×4) PS-PAM8 signal can be successfully transmitted over 40-km SSMF.
112-Gb/s/λ Downstream Transmission for TDM-PON with 31-dB Power Budget using 25-Gb/s Optics and Simple DSP in ONU
Authors: Luo Siyu , Li Zhengxuan , Qu Yuanzhe , Song Yingxiong , Chen Jian , Li Yingchun , Wang Min
Published: March 2020

We experimentally demonstrate 112-Gb/s/λ PAM-4 transmission based on 25-Gb/s optics. Over 31-dB power budget is achieved by using OLT-side pre-equalization, amplification and only simple FFE in ONU.
O-band bismuth-doped fiber amplifier with 67 nm bandwidth
Authors: Khegai Aleksandr , Ososkov Yan , Firstov Sergei , Riumkin Konstantin , Alyshev Sergey , Kharakhordin Alexander , Firstova Elena , Afanasiev Fedor , Khopin Vladimir , Guryanov Alexey , Melkumov Mikhail
Published: March 2020

We present 30 dB Bi-P-doped fiber amplifier from 1287 to 1354 nm. The wider bandwidth was achieved using inhomogeneous broadening of bismuth active centers (BAC-P). Blue shifted BAC-P were pumped at 1178 nm and generated laser radiation at 1276 nm which serves as a pump source for red shifted BAC-P.
Scaling PULSE Data Center Network Architecture and Scheduling Optical Circuits in Sub-microseconds
Authors: Benjamin Joshua L. , Zervas Georgios
Published: March 2020

PULSE, an optical circuit switched data center network, employs custom ASIC schedulers to reconfigure circuits in 240 ns. The revised PULSE architecture scales to 10,000s blades, achieves >95% sustained throughput, with low median (1.23 µs) and tail (145 µs) latencies, while consuming 115 pJ/bit and costing $9.04/Gbps.
Beyond Edge Cloud: Distributed Edge Computing
Authors: Benzaoui Nihel
Published: March 2020

High bandwidth demands combined with low latency applications lead the move from centralized cloud to distributed Edge Computing. We discuss how this paradigm shift impacts network interconnects design and the key network features to truly enable 5G and beyond.
Beyond Terabit/s WDM Optical Wireless Transmission using Wavelength-transparent Beam Tracking and Steering
Authors: Hong Yang , Feng Feng , Bottrill Kyle R. H. , Taengnoi Natsupa , Singh Ravinder , Faulkner Grahame , O’Brien Dominic C. , Petropoulos Periklis
Published: March 2020

We report up to 1.165-Tb/s optical wireless WDM transmission using a wavelength-transparent beam tracking and steering system. Over a 3.5-m perpendicular distance, beyond 1-Tb/s capacity was achieved across a lateral coverage up to 1.8 m.
Leveraging Long-Term QoT Awareness for Capacity Boost of Pan-European Network
Authors: Slovak Juraj , Schairer Wolfgang , Sperti Donato , Capela Pedro , Martins Silvestre , Andersen Uffe , Lindgren Anders X. , Tjäder Joakim L. , Melin Stefan
Published: March 2020

Online quality of transmission (QoT) monitoring and validation enables conversion of unused margins into higher network capacities. We quantify the benefit of long-term performance awareness in a Pan-European optical network of a Tier-1 operator.
Maximizing Fiber Cable Capacity Under A Supply Power Constraint Using Deep Neural Networks
Authors: Cho Junho , Chandrasekhar Sethumadhavan , Sula Erixhen , Olsson Samuel , Burrows Ellsworth , Raybon Greg , Ryf Roland , Fontaine Nicolas , Antona Jean-Christophe , Grubb Steve , Winzer Peter , Chraplyvy Andrew
Published: March 2020

We experimentally achieve a 19% capacity gain per Watt of electrical supply power in a 12-span link by eliminating gain flattening filters and optimizing launch powers using deep neural networks in a parallel fiber context.
Investigation of Tolerance of OFDR-Based DAS to Vibration-induced Beat Frequency Offset
Authors: Okamoto Tatsuya , Iida Daisuke , Oshida Hiroyuki
Published: March 2020

We investigate the statistical property of Rayleigh backscattered light to confirm the tolerance to vibration-induced beat frequency offset, which forces us to interrogate an unintentionally-positioned sensor. A long sensor is capable of measuring vibrations correctly.
Compensating model of nonlocal effects in a Brillouin optical time-domain analysis system
Authors: Liu Can , Yan Lianshan , Zhang Xinpu , Zhou Yin , He Haijun , Pan Wei , Luo Bin
Published: March 2020

A novel model for compensating the nonlocal effects is proposed in BOTDA. A basic experimental configuration is only required. Experimental results show that a hotspot at 39.1 km can be accurately measured under probe power from -14 dBm to +2 dBm, and a 13.5 MHz Brillouin frequency shift error is corrected.
Rayleigh speckles obtained from single mode fiber for wavelength measurement
Authors: Wan Yangyang , Fan Xinyu , Wang Shuai , Zhang Zhaopeng , He Zuyuan
Published: March 2020

We propose a novel wavemeter using Rayleigh speckle obtained by optical time domain reflectometry. It is experimentally demonstrated that the system can resolve multi-wavelength signal with 6 fm wavelength resolution and 25 nm bandwidth.
Optimal Upstream Spectrum Resource Allocation on IP-over-EONs Access Links
Authors: Shao Junyi , Sun Weiqiang , Hu Weisheng
Published: March 2020

We propose a resource allocation strategy on IP-over-EONs access links. It realizes the dynamic self-adaptive spectrum resource adjustment applying to traffic fluctuations and handles the performance requirements under the circuit/packet hybrid architecture.
Reconfiguration of VNF Placement in an Optical Metro Network by a Modular Planning Tool
Authors: Maier Guido , Askari Leila , Troia Sebastian , Zorello Ligia Maria Moreira , Musumeci Francesco , Tornatore Massimo
Published: March 2020

We demonstrate the recurrent reconfiguration of virtual network function placement and routing and wavelength assignment in optical metro networks supporting 5G services. Reconfiguration solutions are provided by a dedicated planning-tool module.
Low-Latency Federated Reinforcement Learning-Based Resource Allocation in Converged Access Networks
Authors: Ruan Lihua , Mondal Sourav , Dias Imali , Wong Elaine
Published: March 2020

We propose a federated reinforcement learning (FedRL) solution to innovate resource allocation in converged access networks. FedRL lowers network latency with reinforcement-learnt bandwidth decision and achieves fast learning with federated learning efforts.
2-dimentional fiber array with reflow compatibility for high-density optical interconnection
Authors: Kumagai Tsutaru , Arao Hajime , Nguyen Hong C. , Nakanishi Tetsuya
Published: March 2020

We developed a 2-dimensional fiber array (2D-FA) as an optical interconnection device for co-packaged optics. The 2D-FA was capable of maintaining a low connection loss of < 1.0 dB after reflow process at 260°C.
Quantum Dash Passively Mode Locked Laser for Optical Heterodyne Millimeter-Wave Analog Radio-over-Fiber Fronthaul Systems
Authors: Delmade Amol , Verolet Theo , Browning Colm , Lin Yi , Aubin Guy , Lelarge F , Ramdane Abderrahim , Barry Liam P.
Published: March 2020

In mm-wave systems, carrier phase noise limits the performance of analog multicarrier signal transmission. Experimental results show the successful use of a passively mode-locked laser with optical feedback in a 60GHz A-RoF heterodyne 25km system.
Reliability Failure Modes of an Integrated Ge Photodiode for Si Photonics
Authors: Rauch Stewart , Lee Dongho , Vert Alexey , Jiang Lin , Min Byoung
Published: March 2020

Major failure modes of Germanium photodiodes are proposed with a model. These are: catastrophic breakdown driven by thermal runaway due to localized self-heating and electrical defect generation/activation driven by electric field with photocurrent localization effect.
Vertically-Curved Si Surface Optical Coupler for Coupling with Standard Single-Mode Optical Fibers
Authors: Atsumi Y. , Yoshida T. , Omoda E. , Sakakibara Y.
Published: March 2020

A vertically-curved-waveguide surface optical coupler for coupling with a 10-µm-MFD standard single-mode optical fiber was developed. The fabricated coupler showed 1-dB bandwidths of >160 nm and >120 nm and coupling losses of 3.9 dB and 4.0 dB for TE and TM polarization.
Wavelength-Space Domain High-Throughput Artificial Neural Networks by Parallel Photoelectric Matrix Multiplier
Authors: On Mehmet Berkay , Lu Hongbo , Chen Humphry , Proietti Roberto , Yoo S. J. Ben
Published: March 2020

We propose a massively parallel neural network architecture with photonic matrix-vector multiplication in the wavelength and space domains with balanced photodetectors and nonlinear transfer functions in MZI modulators. An experimental proof-of-principle demonstration is also discussed.
Experimental Validation of an Open Source Quality of Transmission Estimator for Open Optical Networks
Authors: Ferrari Alessio , Filer Mark , Balasubramanian Karthikeyan , Yin Yawei , Le Rouzic Esther , Kundrát Jan , Grammel Gert , Galimberti Gabriele , Curri Vittorio
Published: March 2020

We test the QoT-E of the GNPy library fed by data from the network controller against experimental measurements on mixed-fiber, Raman-amplified, multi-vendor scenarios on the full C-band: an excellent accuracy within 1 dB is shown.
Neural Network-Based Soft-Demapping for Nonlinear Channels
Authors: Schaedler Maximilian , Calabrò Stefano , Pittalà Fabio , Bluemm Christian , Kuschnerov Maxim , Pachnicke Stephan
Published: March 2020

Conventional soft demappers designed for AWGN channels suffer from performance loss under realistic channels. We propose a neural network soft demapper and show a gain of 0.35dB in an 800Gb/s coherent transmission experiment using DP-32QAM.
All Silicon IQ Modulator with 1Tb/s Line Rate
Authors: Zhalehpour Sasan , Guo Mengqi , Lin Jiachuan , Zhang Zhuhong , Sepehrian Hassan , Qiao Yaojun , Shi Wei , Rusch Leslie A.
Published: March 2020

By significantly improving the accuracy of our nonlinear pre-compensation digital signal processing, we achieve 1 Tb/s line rate with an all silicon modulator using 32QAM modulation with dual polarization emulation.
BER and TDECQ Correlation for Different Impairments in 400Gbps PAM4 system
Authors: Zhao Ying , Doerr Chris , Chen Li , Zhu Ninghui , Ton Dinh , Aroca Ricardo , Huang Xue , Xu Michelle
Published: March 2020

Closed-form bit-error rate (BER) expression as a function of transmitter dispersion eye closure quaternary (TDECQ) is derived. Based on a silicon-photonics 400-Gbps PAM4 transceiver, BER and TDECQ correlation is verified for different impairments.
A 0.57-mW/Gbps, 2ch x 53-Gbps Low-Power PAM4 Transmitter Front-End Flip-Chip-Bonded 1.3-μm LD-Array-on-Si
Authors: Kishi Toshiki , Nagatani Munehiko , Kanazawa Shigeru , Shikama Kota , Fujii Takuro , Nishi Hidetaka , Yamazaki Hiroshi , Sato Norio , Nosaka Hideyuki , Matsuo Shinji
Published: March 2020

A low-power 2-channel PAM4 transmitter front-end consisting of 65-nm CMOS PAM4 shunt LD drivers and flip-chip-bonded 1.3-μm LD-array-on-Si achieves simultaneous 2ch × 53-Gps PAM4 transmission over 2-km-long SSMF with power efficiency of 0.57 mW/Gbps.
Strongly Coupled Few-mode Erbium-doped Fiber Amplifiers with Ultralow Differential Modal Gain
Authors: Liu Yaping , Wang Xutao , Yang Zhiqun , Zhang Lin , Li Guifang
Published: March 2020

We propose new few-mode EDFAs based on strong mode coupling, which can be realized by distributed long-period gratings. As a result, an ultralow differential modal gain of 0.5 dB can be achieved with layered doping.
A Metalens Array on a 12-inch Glass Wafer for Optical Dot Projection
Authors: Hu Ting , Zhong Qize , Li Nanxi , Dong Yuan , Xu Zhengji , Li Dongdong , Fu Yuan Hsing , Zhou Yanyan , Lai Keng Heng , Bliznetsov Vladimir , Lee Hou-Jang , Loh Wei Loong , Zhu Shiyang , Lin Qunying , Singh Navab
Published: March 2020

We report the first demonstration of a metalens array fabricated on a 12-inch glass wafer for dot projection. Good uniformity in dot size is achieved, with a maximum deviation of 8% to the simulated value.
Si-waveguide-coupled Membrane InGaAsP-multiple-quantum-well Photodetector with Large Bandwidth at High Optical Input Power
Authors: Maeda Yoshiho , Hiraki Tatsurou , Aihara Takuma , Fujii Takuro , Takeda Koji , Tsuchizawa Tai , Matsuo Shinji
Published: March 2020

A Si-waveguide-coupled membrane photodetector (PD) with an InGaAsP multiple-quantum-well absorption layer shows a fiber-to-PD responsivity of 0.4 A/W and 3-dB bandwidth over 20 GHz at a fiber input power up to +5 dBm.
Zero-Bias High-Speed Evanescently Coupled Waveguide Type-II UTC Photodiode
Authors: Yu Fengxin , Sun Keye , Yu Qianhuan , Beling Andreas
Published: March 2020

We demonstrate GaAs0.5Sb0.5/In0.53AlyGa0.47-yAs uni-traveling carrier (UTC) waveguide photodiodes with high bandwidth of up to 66 GHz at zero bias and over 100 GHz bandwidth under low bias condition.