The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2011
Filed:
Apr. 02, 2009
Chi-wai Chow, Hsinchu, TW;
Sien Chi, Hsinchu, TW;
Chia-hsuan Wang, Jhuangwei Township, Yilan County, TW;
Fu-yuan Shih, Anding Township, Tainan County, TW;
Chien-hung Yeh, Banciao, TW;
Chi-Wai Chow, Hsinchu, TW;
Sien Chi, Hsinchu, TW;
Chia-Hsuan Wang, Jhuangwei Township, Yilan County, TW;
Fu-Yuan Shih, Anding Township, Tainan County, TW;
Chien-Hung Yeh, Banciao, TW;
National Chiao Tung University, Hsinchu, TW;
Abstract
The present invention discloses a fiber sensing system with self-detection mechanism which utilizes a central office to control secondary ring architecture formed by fiber sensor, remote node and optical coupler primarily. The secondary ring architecture is connected serially to form a primary ring architecture. The central office has a tunable laser light source that can deliver the light source to the fiber sensor. Since the fiber sensor has reflective ability, all light source signal sent by the tunable laser light source will be detected and measured by the fiber sensor. Thus central office can detect all signals reflected by the fiber sensor and produce a spectrum for analyzing fault point locations. The present invention can greatly enhance survivability and sensing capacity of all fiber sensors, so that when a fault point caused by environmental change within the fiber, it will not effect the overall operation of the sensing mechanism. The application of fiber sensor can also reduce cost and complexity of the overall fiber network topology.