A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges

Yi-Lin Yu; Shien-Kuei Liaw; Hsi-Hsir Chou; Hoa Le Minh; Zabih Ghassemlooy

doi:10.1109/JPHOT.2015.2488286

A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges

Yi-Lin Yu, Shien-Kuei Liaw, Hsi-Hsir Chou, Hoa Le Minh, Zabih Ghassemlooy

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Abstract

In this paper, a 10-Gb/s hybrid optical fiber (OF) and free-space optics (FSO) link as part of a bidirectional long-haul OF transmission for application in outdoor environments such as bridges is proposed. A fiber-Bragg-grating (FBG) sensor head is used for monitoring the condition of a bridge, and in the case of the bridge being damaged, the transmission path is changed over from OF to the FSO link to ensure link connectivity. An Erbium-doped fiber amplifier is used to compensate for losses due to the fiber cable and the free-space channel. At a bit error rate (BER) of 10e-9, the power penalty between the OF and FSO paths is <; 1 dB, and the power variations for both paths are ±0.07 and ±0.12 dB, respectively.

Original language	English
Article number	7905509
Pages (from-to)	1-9
Number of pages	9
Journal	IEEE Photonics Journal
Volume	7
Issue number	6
Early online date	7 Oct 2015
DOIs	https://doi.org/10.1109/JPHOT.2015.2488286
Publication status	Published - 7 Dec 2015

Keywords

Erbium doped fiber amplifer
Fiber sensor
Free space optics
Long-haul transmission system

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title = "A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges",

abstract = "In this paper, a 10-Gb/s hybrid optical fiber (OF) and free-space optics (FSO) link as part of a bidirectional long-haul OF transmission for application in outdoor environments such as bridges is proposed. A fiber-Bragg-grating (FBG) sensor head is used for monitoring the condition of a bridge, and in the case of the bridge being damaged, the transmission path is changed over from OF to the FSO link to ensure link connectivity. An Erbium-doped fiber amplifier is used to compensate for losses due to the fiber cable and the free-space channel. At a bit error rate (BER) of 10e-9, the power penalty between the OF and FSO paths is <; 1 dB, and the power variations for both paths are ±0.07 and ±0.12 dB, respectively.",

keywords = "Erbium doped fiber amplifer, Fiber sensor, Free space optics, Long-haul transmission system",

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AU - Yu, Yi-Lin

AU - Liaw, Shien-Kuei

AU - Chou, Hsi-Hsir

AU - Le Minh, Hoa

AU - Ghassemlooy, Zabih

PY - 2015/12/7

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KW - Erbium doped fiber amplifer

KW - Fiber sensor

KW - Free space optics

KW - Long-haul transmission system

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A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges

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Keywords

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