12 May 2004 Optical fiber sensing and communication systems using fiber and microchip laser sources
Author Affiliations +
Proceedings Volume 5280, Materials, Active Devices, and Optical Amplifiers; (2004) https://doi.org/10.1117/12.520306
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China
Fiber optic strain sensor systems using fiber Bragg grating have been developed in our Section with time demultiplexing phase stabilized feed back Fabry-Perot tunable filter and signal processing technologies. The system can resolve < 1 μ strain, with measuring range of 4000 μ strain; 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 specification with bandwidth 6 MHz. Dual data signals bi-directional transmission adn receiving channel, meets RS-232C specification and the Buad rate are 9.6 Kbps. The sstems are carefully designed and fabricated to meet the environmental wide temperature range conditions as well as high vibration and shock mobile transportation.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Junewen Chen, Junewen Chen, Pie-Yau Chien, Pie-Yau Chien, Jun-Ting Lin, Jun-Ting Lin, } "Optical fiber sensing and communication systems using fiber and microchip laser sources", Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); doi: 10.1117/12.520306; https://doi.org/10.1117/12.520306

Back to Top