Optical bend sensor based on a long-period fiber grating monitored by an optical time-domain reflectometer

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Frazao, O (Author) Other; Falate, R (Author) Other; Baptista, JM (Author) Other; Fabris, JL (Author) Other; Santos, JL (Author) FCUP

Journal

Title: Optical Engineering

Vol. 44

Final page: 110502

ISSN: 0091-3286

Publisher: SPIE

Indexing

ISI Web of Knowledge - 15 Citations

Scopus - 19 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-000-0SP

DOI: 10.1117/1.2123267

Abstract (EN): We report an alternative technique to interrogate a long-period fiber grating (LPG) when the grating sensitivity is based on the peak amplitude changes of the resonant wavelength. To read the amplitude changes, a conventional optical domain reflectometer was used. Bend measurements were performed to apply such method and to determine the grating sensitivity for this physical parameter. Reflective measurements, temperature insensitive, and the possibility of multiplexing LPG sensors are some advantages offered by this technique. (c) 2005 Society of Photo-Optical Instrumentation Engineers.

Language: English

Type (Professor's evaluation): Scientific