TY - JOUR
T1 - A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges
AU - Yu, Yi-Lin
AU - Liaw, Shien-Kuei
AU - Chou, Hsi-Hsir
AU - Le Minh, Hoa
AU - Ghassemlooy, Zabih
PY - 2015/12/7
Y1 - 2015/12/7
N2 - 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.
AB - 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.
KW - Erbium doped fiber amplifer
KW - Fiber sensor
KW - Free space optics
KW - Long-haul transmission system
U2 - 10.1109/JPHOT.2015.2488286
DO - 10.1109/JPHOT.2015.2488286
M3 - Article
VL - 7
SP - 1
EP - 9
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
SN - 1943-0655
IS - 6
M1 - 7905509
ER -