20 September 2010 Simultaneous measurement of multiple parameters using a single fiber Bragg grating
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Proceedings Volume 7808, Infrared Remote Sensing and Instrumentation XVIII; 78081R (2010); doi: 10.1117/12.872088
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States
Abstract
A novel approach for simultaneous measurement of chirp (any parameter that can induce strain gradient on FBG) and temperature using a single FBG is proposed. Change in reflectivity at central wavelength of FBG reflection & Bragg wavelength shifts induced due to temperature were used for chirp & temperature measurements respectively. Theoretical resolution limit for chirp and temperature using an Optical Spectrum Analyzer (OSA) with 1pm wavelength resolution and >58dB dynamic range are 12.8fm and 1/13 oC respectively.
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Mahesh Kondiparthi, "Simultaneous measurement of multiple parameters using a single fiber Bragg grating", Proc. SPIE 7808, Infrared Remote Sensing and Instrumentation XVIII, 78081R (20 September 2010); doi: 10.1117/12.872088; https://doi.org/10.1117/12.872088
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KEYWORDS
Fiber Bragg gratings

Temperature metrology

Reflectivity

Sensors

Apodization

Head

Spectrum analysis

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