Results 21 to 30 of about 45,036 (321)

A high-precision bidirectional time-transfer system over a single fiber based on wavelength-division multiplexing and time-division multiplexing

Frontiers in Physics, 2023
In this paper, a high-precision bidirectional time-transfer system over a single fiber based on wavelength-division multiplexing and time-division multiplexing (SFWDM-TDM) is proposed, which combines the advantages of wavelength-division multiplexing and
Xinxing Guo, Xinxing Guo, Bo Liu, Bo Liu, Weicheng Kong, Weicheng Kong, Honglei Quan, Honglei Quan, Yucan Zhang, Yucan Zhang, Tao Liu, Ruifang Dong, Shougang Zhang   +12 more
doaj   +1 more source

Wavelength Division Multiplexing at 2μm [PDF]

European Conference and Exhibition on Optical Communication, 2012
This paper shows, for the first time, the implementation of a WDM subsystem at the 2μm wavelength window with mixed formats. Three wavelength channels were directly modulated with BPSK Fast-OFDM at 5Gbit/s per channel, with a fourth channel NRZ-OOK externally modulated at 8.5Gbit/s giving a total capacity in excess of 20 Gbit/s.
MacSuibhne, N., Li, Z., Baeuerle, B., Zhao, J., Wooler, J.P., Alam, S.U., Poletti, F., Petrovich, M.N., Heidt, A.M., Giles, I.P., Giles, D.J., Pálsdóttir, B., Grüner-Nielsen, L., Phelan, R., O'Carroll, J., Kelly, B., Murphy, D., Ellis, A.D., Richardson, D.J., Garcia Gunning, F.C.   +19 more
openaire   +3 more sources

High performance architecture design for large scale fibre-optic sensor arrays using distributed EDFAs and hybrid TDM/DWDM [PDF]

, 2013
A distributed amplified dense wavelength division multiplexing (DWDM) array architecture is presented for interferometric fibre optic sensor array systems. This architecture employs a distributed erbium doped fibre amplifier (EDFA) scheme to decrease the
Austin, E.A., Kingsley, S.A., Liao, Y., Nash, P.J., Richardson, D.J.   +4 more
core   +2 more sources

1-Pbps orbital angular momentum fibre-optic transmission

Light: Science & Applications, 2022
A 1-Pbps orbital-angular-momentum fibre-optic transmission system that combines space-division multiplexing and wavelength-division multiplexing in a 34 km 7-core ring-core fibre is demonstrated utilizing low-complexity 4 × 4 MIMO equalization.
Junyi Liu, Jingxing Zhang, Jie Liu, Zhenrui Lin, Zhenhua Li, Zhongzheng Lin, Junwei Zhang, Cong Huang, Shuqi Mo, Lei Shen, Shuqing Lin, Yujie Chen, Ran Gao, Lei Zhang, Xiaobo Lan, Xinlun Cai, Zhaohui Li, Siyuan Yu   +17 more
doaj   +1 more source

Radio-over-Fibersystem Capacity Improvements by Using Wavelength Division Multiplexing and Subcarrier Multiplexing Techniques [PDF]

Engineering and Technology Journal, 2015
Radio-over-Fiber (RoF) system refers to the radio signals which are modulated with optical signal and transmitted over optical fiber link from Central Office (CO) to the Remote Nodes (RNs).In this paper, RoF system with Wavelength Division Multiplexing ...
Mustafa A. Jalil, Aied K. AL-Samarrie
doaj   +1 more source

Cylindrical vector beam multiplexer/demultiplexer using off-axis polarization control

Light: Science & Applications, 2021
The emergence of cylindrical vector beam (CVB) multiplexing has opened new avenues for high-capacity optical communication. Although several configurations have been developed to couple/separate CVBs, the CVB multiplexer/demultiplexer remains elusive due
Shuqing Chen, Zhiqiang Xie, Huapeng Ye, Xinrou Wang, Zhenghao Guo, Yanliang He, Ying Li, Xiaocong Yuan, Dianyuan Fan   +8 more
doaj   +1 more source

Fault Tolerant Dense Wavelength Division Multiplexing Optical Transport Networks

Journal of Telecommunications and Information Technology, 2023
Design of fault tolerant dense wavelength division multiplexing (DWDM) backbones is a major issue for service provision in the presence of failures. The problem is an NP-hard problem.
Yousef S. Kavian, Wei Ren, Majid Naderi, Mark S. Leeson, Evor L. Hines   +4 more
doaj   +1 more source

Energy-efficiency improvements for optical access [PDF]

, 2014
This article discusses novel approaches to improve energy efficiency of different optical access technologies, including time division multiplexing passive optical network (TDM-PON), time and wavelength division multiplexing PON (TWDM-PON), point-to ...
Anthapadmanabhan, P, Chow, H, Kanonakis, K, Lannoo, Bart, Lee, K-L, Saliou, F, Suvakovic, D, Vetter, P, Yin, Xin   +8 more
core   +1 more source

A Coaxially Integrated Photonic Orbital Angular Momentum Beam Multiplexer [PDF]

, 2016
We demonstrate an integrated photonic orbital angular momentum beam multiplexer consisting of four nested arc waveguide gratings. Well-defined OAM mode emissions over wide bandwidth of 1-nm enables simultaneous wavelength division multiplexing and OAM ...
Cai, Xinlun, Chen, Hui, Chen, Yujie, Klitis, Charalambos, Li, Shimao, Sorel, Marc, Xiao, Qingsheng, Yu, Siyuan, Zhu, Jiangbo   +8 more
core   +1 more source

Optical Networking Beyond WDM

IEEE Photonics Journal, 2012
Wavelength-division multiplexing (WDM) has been the workhorse of data networks, accommodating exponential traffic growth for two decades. Recently, however, progress in WDM capacity research has markedly slowed down as experiments are closely approaching
Peter J. Winzer
doaj   +1 more source