Fiber-optic temperature sensing based on LPFG fabricated with heat-shrinkable tube and screw

Tsutsumi,; Yamamoto,; Miyoshi,; Ohashi, Keisuke

doi:10.1109/acp.2010.5682670

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Temperature Property Of Cascaded Lpfgs1

Introduction1

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2011

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Cited by 1 publication

(2 citation statements)

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“…The circles show the resonance loss of 4-cascaded LPFG and triangles show the resonance loss of the single LPFG. It was reported that resonance loss at each resonance wavelength against the temperature can be fitted quite well by the exponential function with respect to the temperature experimentally [3]. Thus, we fitted the experimental data by the exponential function.…”

Section: Temperature Property Of Cascaded Lpfgsmentioning

confidence: 98%

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Sensitivity-enhanced optical temperature sensor with cascaded LPFGs

Miyoshi

Ohashi

2011

SPIE Proceedings

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We propose a new structure of optical fiber temperature sensor with cascaded long-period fiber gratings (LPFGs) and investigate the temperature dependent loss of cascaded LFPGs. Each of the cascaded LPFGs has the same resonance wavelength with the same temperature change, because the cascaded LPFGs are made of a heat-shrinkable tube and a screw. The total resonance loss of proposed cascaded LPFGs shows higher temperature sensitivity than that of a single LPFG. The thermal coefficient of 4-cascaded LPFG also shows more than 4 times larger than that of a single one.

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Section: Temperature Property Of Cascaded Lpfgsmentioning

confidence: 98%

“…We recently proposed a new temperature-sensitive LPFG fabricated with heat-shrinkable tube and reported its temperature characteristics for temperature sensing applications [3,4].…”

Section: Introductionmentioning

confidence: 99%