Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 23, Issue 21, Pages 1600-1602Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2011.2164787
Keywords
Modal interferometer; photonic crystal fiber (PCF); strain; temperature
Funding
- Defence Research and Development Organization, Ministry of Defence, India
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In this letter, the nonlinear photonic crystal fiber (NLPCF) has been exploited for the first time, as a high-temperature sensor based on the modal interferometric technique with a sensitivity that is remarkably higher along with low strain sensitivity. We have obtained a very high temperature sensitivity of 73 pm /degrees C and a very low strain sensitivity of 0.93 pm/mu epsilon. The temperature to strain cross sensitivity is found to be significantly low in the very high range of temperature and strain. The proposed sensor may find application in strain-effective areas requiring accurate temperature measurement even at a high temperature range.
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