Journal
CHINESE OPTICS LETTERS
Volume 13, Issue 12, Pages -Publisher
CHINESE LASER PRESS
DOI: 10.3788/COL201513.120602
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Funding
- National Natural Science Foundation of China [61377081, 61007035]
- Shanghai Municipal Education Commission
- Shanghai Education Development Foundation [12CG48]
- Science and Technology Commission of Shanghai Municipality (STCSM) [14511105602]
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This Letter presents intrinsic Fabry-Perot interferometers in the fiber tapers fabricated by the femtosecond laser micromachining technique. The sensing of temperatures as high as 1000 degrees C based on the fiber device is characterized, with a sensitivity of 15.28 pm/degrees C. A nearly linear refractive index sensing is also obtained by using the fringe visibility to characterize, with a sensitivity of 73.05 dB/RIU. These intrinsic Fabry-Perot interferometers in fiber tapers may be useful in applications of high-temperature and linear refractive index sensing.
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