Results 11 to 20 of about 123 (115)

Performance Enhancement and Capacity Enlargement for a DWDM-PON System Utilizing an Optimized Cross Seeding Rayleigh Backscattering Design

Applied Sciences, 2019
In this work, a record of 16 channels, with future channel spacing in the telecommunication standardization sector of the International Telecommunications Union G.694.1 (ITU-T G.694.1) for Dense Wavelength Division Multiplexing (DWDM) (i.e., 12.5 GHz ...
Nazmi A. Mohammed, Ahmed Hamdi Mansi
doaj   +2 more sources

Stable and Tunable Erbium Ring Laser by Rayleigh Backscattering Feedback and Saturable Absorber for Single-Mode Operation

Quantum Beam Science
This work demonstrates a high-quality erbium-doped fiber (EDF) ring laser in the L-band gain range by combining the Rayleigh backscattering (RB) feedback signal and unpumped EDF induced saturable absorber (SA) filter. The optical filter effect induced by
Chien-Yu Liao, Yu-Hsin Kao, Ying-Zhen Chen, Kuan-Ming Cheng, Chun-Yen Lin, Tsu-Hsin Wu, Teng-Yao Yang, Chien-Hung Yeh   +7 more
doaj   +2 more sources

Short- to Long-Reach WDM Access Network With Free Space Optical Traffic Link

IEEE Photonics Journal
In this paper, we demonstrate a free space optical (FSO) wavelength-division-multiplexing passive optical network (WDM-PON) architecture with short-reach to long-reach fiber transmission to overcome different environments and geographical restrictions ...
Chien-Yu Liao, Tsu-Hsin Wu, Chien-Hung Yeh, Wen-Paio Lin, Yu-Heng Lin, Shien-Kuei Liaw   +5 more
doaj   +2 more sources

Investigations of Backscattering Effects in Optical Fibers and Their Influences on the Link Monitoring

IEEE Photonics Journal, 2017
In this paper, first, we employed the coupled-mode theory to investigate the backscattering power characteristics of Rayleigh backscattering (RB) and stimulated Brillouin scattering (SBS) both synchronously and precisely. We discovered how the RB and SBS
Qiguang Feng, Wei Li, Qiang Zheng, Jinyao Wang, Haitao Li, Qianggao Hu, Shaohua Yu   +6 more
doaj   +1 more source

Characterization of Rayleigh backscattering arising in various two-mode fibers [PDF]

, 2016
We experimentally characterize the mode dependent characteristics of Rayleigh backscattering (RB) arising in various two-mode fibers (TMFs). With the help of an all-fiber photonic lantern, we are able to measure the RB power at individual modes ...
Fu, S Songnian, Okonkwo, C.; id_orcid, Yu, Dawei, Koonen, T., Liu, D Deming, Tang, Ming, Giles, I., Okonkwo, C., Fu, Songnian, Cao, Zizheng, Liu, Deming, Deng, Lei, Tang, M Ming, Giles, Ian, Koonen, AMJ Ton, Yu, D Dawei, Cao, Z Zizheng, Okonkwo, CM Chigo   +17 more
core   +1 more source

Intensification of noise tolerance against Rayleigh backscattering for bidirectional 10 Gbps WDM-FSO network by employing dual band of OFDM signal

Results in Optics, 2021
A noteworthy scheme to transport dual band 10 Gbps 16 quadrature amplitude modulated orthogonal frequency division multiplexed signal for downlink and uplink channel over 55 km single mode fiber as well as 650-m free space is proposed and demonstrated ...
Paulomi Mandal, Khaleda Mallick, Bubai Dutta, Bibhatsu Kuiri, Saikat Santra, Nilanjana Sarkar, Ardhendu Sekhar Patra   +6 more
doaj   +1 more source

Highly Reliable Metro-Access Network Based on a Dual-Fiber Ring Architecture and Optimized Protection Mechanisms

IEEE Access, 2021
Network reliability is very important for the next generation of optical networks. In this paper, a highly reliable protection mechanism, which integrates the approaches of optical protection and microwave protection, is proposed for metro-access optical
Zerui Song, Wei Ji, Rui Yin, Jingyao Li, Zisu Gong, Hao Yun   +5 more
doaj   +1 more source

Free Space Optical Communication in Long-Reach Unidirectional Ring-Architecture Fiber Network

IEEE Access, 2020
In the work, a ring-constructed wavelength-division-multiplexing (WDM) access system for delivering multiple free space optical (FSO) wireless signals is investigated.
Chien-Hung Yeh, Jhao-Ren Chen, Wei-Yao You, Wen-Piao Lin, Chi-Wai Chow   +4 more
doaj   +1 more source

Hybrid Self-Protected Fiber-FSO WDM-PON System with Fiber Breakage Prevention

Photonics, 2022
In this research, we present and design a blended wavelength-division-multiplexing passive optical network (WDM-PON) architecture to deliver both baseband and free-space optical (FSO) signals by using two wavelength bands over an available bandwidth to ...
Ching-Hsuan Hsu, Syu-Yang Jiang, Shang-En Hsieh, Chien-Hung Yeh, Yu-Ting Lai, Lan-Yin Chen, Shien-Kuei Liaw, Chi-Wai Chow   +7 more
doaj   +1 more source

25-GHz-Spaced DWDM-PON With Mitigated Rayleigh Backscattering and Back-Reflection Effects

IEEE Photonics Journal, 2013
A novel 25-GHz-spaced dense wavelength-division multiplexing passive optical network (DWDM-PON) is proposed to improve the utilization of wavelength resource and mitigate the Rayleigh backscattering (RB) and back-reflection effects.
Zhao Zhou, Shilin Xiao, Tao Qi, Pingqing Li, Meihua Bi, Weisheng Hu   +5 more
doaj   +1 more source