Patent Number: 6,298,185

Title: Distributed fiber grating sensing systems using birefringence fiberinterferometers for detecting wavelength shifts

Abstract: A distributed fiber-grating-based sensing system, the system comprises oneor more scanned birefringence fiber interferometers to detect the smallwavelength shift of the light reflected from the fiber grating, awavelength demultiplexer to separate the lights from each fiber grating, areference fiber grating for determining the absolute optical wavelengths.Compared with the prior art, the system has advantages of easierfabrication, better stabilization, and can be customized for differentapplications.

Inventors: Lai; Yinchieh (Taichung, TW), Chen; Yuh-Wen (Taichung Hsien, TW), Ong; Ching-Long (Taichung, TW), Hong; Ben (Taipei-Hsien, TW), Lee; Jiam-Hwa (Taichung, TW), Ma; Rwei-Ping (Taichung, TW), Wu; Shih-Chu (Tainan, TW), Tsai; Ming-Yang (Taichung Hsien, TW), Lee; Cheng-Ching (Taichung Hsien, TW)

Assignee:

International Classification:

Expiration Date: 10/02/2013