4.6 Article

High-pressure and high-temperature characteristics of a Fabry-Perot interferometer based on photonic crystal fiber

Journal

OPTICS LETTERS
Volume 36, Issue 3, Pages 412-414

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.36.000412

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Funding

  1. Research Grant Council, Hong Kong government [PolyU 5281/08E]
  2. National Natural Science Foundation of China (NSFC) [60736039]
  3. Saudi Basic Industries (SABIC) of Saudi Arabia [SB100007]

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A fiber-optic Fabry-Perot interferometer was constructed by splicing a short length of photonic crystal fiber to a standard single-mode fiber. The photonic crystal fiber functions as a Fabry-Perot cavity and serves as a direct sensing probe without any additional components. Its pressure and temperature responses in the range of 0-40 MPa and 25 degrees C-700 degrees C were experimentally studied. The proposed sensor is easy to fabricate, potentially low-cost, and compact in size, which makes it very attractive for high-pressure and high-temperature sensing applications. (C) 2011 Optical Society of America

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