Fiber- and FSO-Protected Connections for Long-Reach TWDM Access Architecture With Fault Protection

Chien-Hung Yeh; Wei-Hung Hsu; Bo-Yin Wang; Wei-Yao You; Jhao-Ren Chen; Chi-Wai Chow; Shien-Kuei Liaw

doi:10.1109/ACCESS.2020.3031609

IEEE Access (Jan 2020)

Fiber- and FSO-Protected Connections for Long-Reach TWDM Access Architecture With Fault Protection

Chien-Hung Yeh,
Wei-Hung Hsu,
Bo-Yin Wang,
Wei-Yao You,
Jhao-Ren Chen,
Chi-Wai Chow,
Shien-Kuei Liaw

Affiliations

Chien-Hung Yeh: ORCiD; Department of Photonics, Feng Chia University, Taichung, Taiwan
Wei-Hung Hsu: Department of Photonics, Feng Chia University, Taichung, Taiwan
Bo-Yin Wang: ORCiD; Department of Photonics, Feng Chia University, Taichung, Taiwan
Wei-Yao You: ORCiD; Department of Photonics, Feng Chia University, Taichung, Taiwan
Jhao-Ren Chen: ORCiD; Department of Photonics, Feng Chia University, Taichung, Taiwan
Chi-Wai Chow: ORCiD; Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, Taiwan
Shien-Kuei Liaw: ORCiD; Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan

DOI: https://doi.org/10.1109/ACCESS.2020.3031609
Journal volume & issue: Vol. 8
pp. 189982 – 189988

Abstract

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In this paper, we propose a long-reach star-ring-based timeand wavelength-divisionmultiplexing passive optical network (TWDM-PON) by using fiberand free space optical (FSO)-protected architecture against fiber breakpoint. Here, the new fiber-based and FSO-based optical network unit (ONU) modules are designed in the PON system to achieve the self-protected operation. Thus, the adjacent ONU is linked to produce the fiberor FSO-based reconnections. Thus, 4 × 10 Gbit/s downstream and 10 Gbit/s upstream signals can be reached through 70 km fiber transmission and a length of free space link without signal amplification and dispersion compensation. Moreover, the relationships of splitter ratio and FSO link length in the proposed TWDM access network are also analyzed and discussed.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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