Optical fiber sensing and communication systems using fiber and microchip laser sources

被引：0
|
作者：
Chen, JW [1 ]
Chien, PY [1 ]
Lin, JT [1 ]
机构：
[1] Chung Hua Univ, Inst Mech & Aerosp Engn, Hsinchu 30053, Taiwan
来源：
APOC 2003: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS; MATERIALS, ACTIVE DEVICES, AND OPTICAL AMPLIFIERS, PTS 1 AND 2 | 2004年 / 5280卷
关键词：
fiber optic strain sensors; fiber optic pressure sensors; optical fiber communication system;
D O I：
10.1117/12.520306
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Fiber optic strain sensor systems using fiber Bragg grating have been developed in our Section with time demultiplexing phase stabilized feedback, fiber Fabry-Perot tunable filter and signal processing technologies. The system can resolve < 1 mustrain, with measuring range of 4000 mustrain; and can monitor 20 points simultaneously. It has been used in real time - long term hazard investigation and warning system on the bridges and traffic high-pass ways. The data from these smart fiber optic distributed stress and strain sensing systems had constantly been observed with satisfactory results. Our fiber optic communication system is a bi-directional audio - video and data signal transmission system: The source laser diodes are TE cooled with temperature control circuits. The system is dual audio bi-directional transmission and receiving channel with bandwidth 4.8 KHz. Video one direction transmission and receiving, meets NTSC specifications with bandwidth 6 MHz. Dual data signals bi-directional transmission and receiving channel, meets RS-232C specifications and the Buad rate are 9.6 Kbps. The systems are carefully designed and fabricated to meet the environmental wide temperature range conditions as well as high vibration and shock mobile transportation.
引用
收藏
页码：703 / 711
页数：9
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