Simultaneous independent temperature and strain measurement using one fiber Bragg grating based on the etching technique

A new method for the simultaneous and independent measurement of temperature and strain that employs only one FBG based upon the etching technique is demonstrated both theoretically and experimentally. The sensor using this scheme has a small sensor probe, and offers combined characteristics of compactness, effective cost, and easy fabrication. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 43: 478–481, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20507