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FIBER SENSORS

Simple equation to estimate the output power of an evanescent field absorption-based fiber sensor

[+] Author Affiliations
O¨. Galip Sarac¸oglu

Erciyes University, Electronic Engineering Department? TR-38039, Kayseri, Turkey E-mail: saracog@erciyes.edu.tr

Sedat O¨zsoy

Erciyes University, Physics Department? TR-38039, Kayseri, Turkey

Opt. Eng. 41(3), 598-600 (Mar 01, 2002). doi:10.1117/1.1431254
History: Received Nov. 7, 2000; Revised Sep. 4, 2001; Accepted Sep. 19, 2001
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The behavior of an evanescent field sensor is important for design purposes. This work gives an approximate and simple equation to estimate the absorption of light in an optical fiber with lossy cladding. The formula is based on the weakly guiding approximation and estimates the output power fraction of the sensor in terms of the fiber and the surrounding parameters. The formula is then related to the concentration of the surrounding medium. © 2002 Society of Photo-Optical Instrumentation Engineers.

© 2002 Society of Photo-Optical Instrumentation Engineers

Citation

O¨. Galip Sarac¸oglu and Sedat O¨zsoy
"Simple equation to estimate the output power of an evanescent field absorption-based fiber sensor", Opt. Eng. 41(3), 598-600 (Mar 01, 2002). ; http://dx.doi.org/10.1117/1.1431254


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