Results 11 to 20 of about 28,130 (145)

Watt-level ultrahigh-optical signal-to-noise ratio single-longitudinal-mode tunable Brillouin fiber laser [PDF]

Optics Letters, 2012
3 pages, 5 figures.
Gaomeng Wang, Jun Li, Jinmei Liu, Li Zhan, Junsong Peng, Tao Zhang, Liang Zhang, Lilin Yi   +7 more
openaire   +4 more sources

All-Optical Non-Inverted Parity Generator and Checker Based on Semiconductor Optical Amplifiers

Applied Sciences, 2021
An all-optical non-inverted parity generator and checker based on semiconductor optical amplifiers (SOAs) are proposed with four-wave mixing (FWM) and cross-gain modulation (XGM) non-linear effects. A 2-bit parity generator and checker using by exclusive
Bingchen Han, Junyu Xu, Pengfei Chen, Rongrong Guo, Yuanqi Gu, Yu Ning, Yi Liu   +6 more
doaj   +1 more source

Improving the Performance of Optical Phased Array by Reducing Relative Intensity Noise of Optically Injection-Locked Laser Array

Photonics, 2022
Relative intensity noise (RIN) is an important factor that determines the performance of optical phased arrays (OPA) that are configured using semiconductor lasers as light emission sources. This study proposes a method of improving the optical signal-to-
Anh-Hang Nguyen, Hyuk-Kee Sung
doaj   +1 more source

OSNR Monitoring for NRZ-PSK Signals Using Silicon Waveguide Two-Photon Absorption

IEEE Photonics Journal, 2011
We study the use of two-photon absorption (TPA) in a silicon optical waveguide for measuring the optical signal-to-noise ratio (OSNR) of a nonreturn to zero phase-shift keying (NRZ-PSK) signal.
Ke Xu, Hon Ki Tsang, Gordon K. P. Lei, Yi Min Chen, Liang Wang, Zhenzhou Cheng, Xia Chen, Chester Shu   +7 more
doaj   +1 more source

Reference Optical Spectrum Based In-Band OSNR Monitoring Method for EDFA Amplified Multispan Optical Fiber Transmission System With Cascaded Filtering Effect

IEEE Photonics Journal, 2018
The reference optical spectrum (ROS) based in-band optical signal-to-noise-ratio (OSNR) monitoring methods are accurate and inherently robust to fiber chromatic dispersion and polarization mode dispersion.
Guo Yin, Sheng Cui, Changjian Ke, Deming Liu   +3 more
doaj   +1 more source

Demonstration of Programmable In-Band OSNR Monitoring Using LCFBG With Commercial Thermal Printer Head

IEEE Photonics Journal, 2015
We proposed and experimentally demonstrated a programmable optical signal-to-noise ratio (OSNR) monitoring scheme by using linearly chirped fiber Bragg grating (LCFBG) and a commercial thermal printer head.
Ruoxu Wang, Ming Tang, Liangjun Zhang, Hailiang Zhang, Zhenhua Feng, Rui Lin, Songnian Fu, Deming Liu, Perry Ping Shum   +8 more
doaj   +1 more source

On the design of low phase noise and flat spectrum optical parametric frequency comb

APL Photonics, 2023
Optical frequency combs (OFCs) have become increasingly pervasive in recent years, with their advantageous frequency coherence properties enabling significant developments in numerous fields, such as optical communications, spectroscopy, and microwave ...
Yijia Cai, Ronit Sohanpal, Yuan Luo, Alexander M. Heidt, Zhixin Liu   +4 more
doaj   +1 more source

Proactive and Nondisruptive Channel Probing for Wavelength Switching in Optical Transmission

IEEE Photonics Journal, 2017
Proactive and nondisruptive channel probing is investigated for the measurement of channel power, amplifier channel gain, and optical signal-to-noise ratio (OSNR) without disrupting established wavelength-division multiplexed channels.
Weiyang Mo, Mariya Bhopalwala, Houman Rastegarfar, Daniel C. Kilper   +3 more
doaj   +1 more source

Multi-Task Learning Convolutional Neural Network and Optical Spectrums Enabled Optical Performance Monitoring

IEEE Photonics Journal, 2022
We propose a simultaneous optical signal recognition (OSR) and optical signal-to-noise ratio (OSNR) monitoring method by using multi-task learning convolutional neural network (MTL-CNN) in conjunction with optical spectrums, which enables optical ...
Chenglong Yu, Haoyu Wang, Changjian Ke, Zi Liang, Sheng Cui, Deming Liu   +5 more
doaj   +1 more source

ASE Noise in Raman Amplifiers: Pump Depletion Impact [PDF]

Radioengineering, 2018
This paper provides a detailed analysis for the effect of pump depletion on amplified spontaneous emission (ASE) noise power, optical signal to noise ratio (OSNR), and noise figure (NF) in forward pumped distributed Raman fiber amplifier (DRFA).
S. E. Darwish, A. S. Samra, M. H. Aly
doaj