Results 21 to 30 of about 127,538 (161)

SDM-WDM ROADM Based on Direct-Laser-Writing SDM Core Separator

IEEE Photonics Journal, 2022
Weakly-coupled space division multiplexing (SDM) techniques based on multi-core fibers (MCF) have attracted great attention for the capacity enhancement of optical interconnect systems and networks. In this paper, we propose a novel direct-laser-writing (
Yu Yang, Jiaxin Liu, Ruiting Cheng, Junchi Jia, Yuyang Gao, Lei Shen, Zhangyuan Chen, Yongqi He, Juhao Li   +8 more
doaj   +1 more source

Frequency Stabilization of a Cesium Faraday Laser With a Double-Layer Vapor Cell as Frequency Reference

IEEE Photonics Journal, 2022
We implement a compact optical frequency standard at the wavelength of 852 nm by the modulation transfer spectroscopy (MTS) technique, using a Faraday laser as the local oscillator and a double-layer cesium vapor cell to provide frequency reference.
Hangbo Shi, Pengyuan Chang, Zhiyang Wang, Zijie Liu, Tiantian Shi, Jingbiao Chen   +5 more
doaj   +1 more source

Subwavelength Energy Transport Along a Dielectric Nanoparticle Chain in a Metal Slot

IEEE Photonics Journal, 2013
Subwavelength energy transportation along a dielectric nanoparticle chain in a metal slot is investigated. It is demonstrated that subwavelength resonance modes with nanoscale confinement could be well achieved in the proposed waveguide, free from the ...
Bing Shen, Yongqing Huang, Xiaofeng Duan, Xiaomin Ren, Xia Zhang, Qi Wang   +5 more
doaj   +1 more source

Neural Successive Cancellation Polar Decoder With Tanh-Based Modified LLR Over FSO Turbulence Channel

IEEE Photonics Journal, 2020
The neural successive cancellation (NSC) decoder with tanh-based modified log-likelihood ratio (LLR) is proposed for reducing the decoding latency of polar codes over free space optical (FSO) turbulence channel.
Jiafei Fang, Meihua Bi, Shilin Xiao, Hang Yang, Zhiyu Chen, Zhiyang Liu, Weisheng Hu   +6 more
doaj   +1 more source

Broadband Photonic Down-Conversion Preprocessor for ADC With Arcsine Equalization

IEEE Photonics Journal, 2020
It is a challenge to convert broadband millimeter-wave signals directly with electronic analog-to-digital converters (ADCs). The photonic down-conversion preprocessor is a promising solution.
Rui Guo, Yankun Li, Chenbo Zhang, Peng Lei, Qing Yin, Xiaopeng Xie, Zhangyuan Chen   +6 more
doaj   +1 more source

Compressing Turbulence Effect in FSO using New Modulation Technique

MATEC Web of Conferences, 2017
Diffusers transmitter modulation to reduce the effect of atmospheric turbulence in free space optical communication system is described in this paper.
Mohamed Nawawi Norizan, Mat Safar Anuar, Rahman Kram Abdul, Rashidi C.B.M., Mohd Nordin Junita   +4 more
doaj   +1 more source

A Broadband Distributed Vibration Sensing System Assisted by a Distributed Feedback Interferometer

IEEE Photonics Journal, 2018
A distributed vibration-sensing system based on phase-sensitive optical time-domain reflectometry (Φ-OTDR) and distributed feedback interferometer (DFI) with broadband frequency response and high spatial resolution has been proposed and ...
Yuanyuan Shan, Jiayun Dong, Jie Zeng, Siyi Fu, Yinsen Cai, Yixin Zhang, Xuping Zhang   +6 more
doaj   +1 more source

Optical Fibre Communications

Optica Acta: International Journal of Optics, 1981
A transcript of the proceedings of a meeting of the Royal Signals Institution, held at the School of Signals, Blandford on 31 March 1976.
openaire   +2 more sources

Resolution Enhancement in Coherent Diffraction Imaging Using High Dynamic Range Image

Photonics, 2021
In a coherent diffraction imaging (CDI) system, the information of the sample is retrieved from the diffraction patterns recorded by the image sensor via multiple iterations.
Yuanyuan Liu, Qingwen Liu, Shuangxiang Zhao, Wenchen Sun, Bingxin Xu, Zuyuan He   +5 more
doaj   +1 more source

Enhanced Neural Architecture for Real-Time Deep Learning Wavefront Sensing

Sensors
To achieve real-time deep learning wavefront sensing (DLWFS) of dynamic random wavefront distortions induced by atmospheric turbulence, this study proposes an enhanced wavefront sensing neural network (WFSNet) based on convolutional neural networks (CNN).
Jianyi Li, Qingfeng Liu, Liying Tan, Jing Ma, Nanxing Chen   +4 more
doaj   +1 more source