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Optics Letters

Optics Letters


  • Vol. 27, Iss. 16 — Aug. 15, 2002
  • pp: 1388–1390

Intrinsic fiber Fabry-Perot temperature sensor with fiber Bragg grating mirrors

Xiaoke Wan and Henry F. Taylor  »View Author Affiliations

Optics Letters, Vol. 27, Issue 16, pp. 1388-1390 (2002)

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A fiber Fabry–Perot interferometer (FFPI) sensor is formed with broadband (~3 nm, 3-dB bandwidth) fiber Bragg grating (FBG) mirrors. Repetitively modulating a distributed-feedback laser produces chirping that modulates the reflectance of the FFPI. Because the reflectance of the FBG mirrors varies with optical frequency, the fringes in the sensor reflectance modulation are distinguishable, making it possible to extend the sensor dynamic range versus that of a FFPI sensor with conventional wavelength-dependent mirrors. An ambient temperature is determined in the range from 25 to 170°C with a resolution of 0.005°C.

© 2002 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.6780) Instrumentation, measurement, and metrology : Temperature
(230.1480) Optical devices : Bragg reflectors

Xiaoke Wan and Henry F. Taylor, "Intrinsic fiber Fabry-Perot temperature sensor with fiber Bragg grating mirrors," Opt. Lett. 27, 1388-1390 (2002)

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