Results 41 to 50 of about 4,266,114 (404)

Broadband, Polarization-Sensitive, and Self-Powered High-Performance Photodetection of Hetero-Integrated MoS2 on Lithium Niobate

Research, 2023
High-performance photodetectors hold promising potential in optical communication and imaging systems. However, conventional counterparts are suffering narrow detection range, high power consumption, and poor polarization sensitivity.
Zhigang He, Heyuan Guan, Xijie Liang, Junteng Chen, Manyan Xie, Kaiwen Luo, Ran An, Liang Ma, Fengkai Ma, Tiefeng Yang, Huihui Lu   +10 more
doaj   +1 more source

Probabilistic Constellation Shaping for Optical Fiber Communications

Journal of Lightwave Technology, 2019
We review probabilistic constellation shaping (PCS), which has been a key enabler for several recent record-setting optical fiber communications experiments. PCS provides both fine-grained rate adaptability and energy efficiency (sensitivity) gains.
Junho Cho, P. Winzer
semanticscholar   +1 more source

High Sensitivity Photon Pressure Sensitive Skin of Piercing Robot Based on Balloon-Shaped Fiber Optic Sensor

IEEE Access
In this paper, a photonic skin sensor based on a balloon-shaped optical fiber structure cascading a Fiber Bragg Grating (FBG) is proposed, which can simultaneously sense pressure and temperature.
Meng Jiao Chi, Hong Juan Yang, Kun Shan Yang, Wei Zhun Dong, Xin Wei Wang, Sen Zhang, Xi Chang Wang, Ling Xin Kong   +7 more
doaj   +1 more source

Multi-dimensional quantitative model of communication network value

Scientific Reports, 2022
In this paper, a multi-dimensional quantitative model is firstly founded for evaluating communication network value, and the quantification of the abstract concept of network value is realized.
Lijuan Wu, Chaoqin Gan, Zhongsen Xu, Jianqiang Hui   +3 more
doaj   +1 more source

AlGaInN laser diode technology for GHz high-speed visible light communication through plastic optical fiber and water [PDF]

, 2016
AlGaInN ridge waveguide laser diodes are fabricated to achieve single-mode operation with optical powers up to 100 mW at ∼420  nm∼420  nm for visible free-space, underwater, and plastic optical fiber communication.
Czernecki, Robert, Kelly, Antony E., Kucharski, Robert, Leszczynski, Mike, Marona, Lucja, Najda, Stephen P., Perlin, Piotr, Suski, Tadek, Targowski, Grzegorz, Watson, Malcolm A., Watson, Scott, White, Henry, Wisniewski, Przemek   +12 more
core   +1 more source

Channel-Based Dynamic Key Generation for Physical Layer Security in OFDM-PON Systems

IEEE Photonics Journal, 2021
Key generation and distribution is a fundamental problem of communication security. To avoid the potential risk due to static key, a physical-layer dynamic key generation and encryption scheme is proposed for orthogonal frequency division multiplexing ...
Yating Wu, Yan Yu, Yuanfeng Hu, Yanzan Sun, Tao Wang, Qianwu Zhang   +5 more
doaj   +1 more source

Distributed Optical Fiber Sensors Based on Optical Frequency Domain Reflectometry: A review

Italian National Conference on Sensors, 2018
Distributed optical fiber sensors (DOFS) offer unprecedented features, the most unique one of which is the ability of monitoring variations of the physical and chemical parameters with spatial continuity along the fiber.
Zhenyang Ding, Chenhuan Wang, Kun Liu, Junfeng Jiang, Di Yang, Guanyi Pan, Zelin Pu, Tiegen Liu   +7 more
semanticscholar   +1 more source

Integrating a QPSK Quantum Key Distribution Link [PDF]

, 2006
We present the integration of the optical and electronic subsystems of a BB84-QKD fiber link. A highspeed FPGA MODEM generates the random QPSK sequences for a fiber-optic delayed self-homodyne scheme using APD detectors.Comment: 2 pages, 4 figures ...
Agnolini, S., Danger, J-L., Gallion, P., Guilley, S., Mendieta, F. J., Silva, M. B. Costa e, Xu, Q.   +6 more
core   +2 more sources

Fair Resource Allocation Based on User Satisfaction in Multi-OLT Virtual Passive Optical Network

IEEE Access, 2020
In this paper, a fair resource allocation mechanism based on user satisfaction in multiple optical line terminal (multi-OLT) virtual passive optical network (VPON) is proposed.
Nianfei Zhan, Chaoqin Gan, Jianqiang Hui, Yaqin Guo   +3 more
doaj   +1 more source

Generation of Arbitrary Frequency Chirps with a Fiber-Based Phase Modulator and Self-Injection-Locked Diode Laser [PDF]

, 2006
We present a novel technique for producing pulses of laser light whose frequency is arbitrarily chirped. The output from a diode laser is sent through a fiber-optical delay line containing a fiber-based electro-optical phase modulator. Upon emerging from
Bakos, Boggs, C. E. Rogers III, Gertsvolf, Greiner, J. A. Pechkis, J. L. Carini, Levin, Li, Liendenbaum, M. J. Wright, Merkel, Miao, Ménager, Ménager, P. L. Gould, Pietiläinen, Reibel, Reibel, Repasky, Ricci, Thévenaz, Troger, Watts, Weiner, Wright, Wright   +26 more
core   +2 more sources