2013
DOI: 10.1007/s13320-013-0116-5
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Micro-structured fiber interferometer as sensitive temperature sensor

Abstract: We report on a fast and sensitive temperature sensor using a micro-structured or photonic crystal fiber interferometer with a high germanium doped fiber core. The wavelength sensitivity for temperature variation was as high as ∆λ/∆Τ= 78 pm/℃ up to 500 ℃, which was 6 times more sensitive than the fiber Bragg grating temperature sensitivity of ∆λ/∆Τ= 13 pm/℃ at 1550 nm. The sensor device was investigated concerning the sensitivity characteristics and response time.

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Cited by 8 publications
(3 citation statements)
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References 15 publications
(19 reference statements)
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“…Various optical fiber temperature sensors have also been proposed and developed [2,[18][19][20][21]. Fiber Bragg gratings (FBGs) are well known for their use in optic fiber temperature sensing, though when in a conventional step-index fiber they are not sensitive to refractive index without further postprocessing such as tapering or etching.…”
Section: Introductionmentioning
confidence: 99%
“…Various optical fiber temperature sensors have also been proposed and developed [2,[18][19][20][21]. Fiber Bragg gratings (FBGs) are well known for their use in optic fiber temperature sensing, though when in a conventional step-index fiber they are not sensitive to refractive index without further postprocessing such as tapering or etching.…”
Section: Introductionmentioning
confidence: 99%
“…In 2013, Favero et al experimentally demonstrate a PCF with a specially doped germanium core as shown in Fig. 3(a) [55]. PCF with germanium core sandwiched between two single mode fibers to form an interferometer for the temperature measurement.…”
Section: Of 23mentioning
confidence: 99%
“…PCF with germanium core sandwiched between two single mode fibers to form an interferometer for the temperature measurement. The experimental set for the temperature detection is shown in figure 3 region of the microstructure fiber and gold coated at the one end of the single mode fiber [55].…”
Section: Of 23mentioning
confidence: 99%