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Journal Article 어븀 첨가 광섬유의 증폭 자발 방출을 이용한 저온 측정
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Authors
이용욱
Issue Date
2007-11
Citation
전기학회논문지, v.56, no.11, pp.1992-1994
ISSN
1975-8359
Publisher
대한전기학회 (KIEE)
Language
Korean
Type
Journal Article
Abstract
In this paper we propose a cryogenic sensor system which can measure the temperature at higher resolution at low temperature using temperature-dependent amplified spontaneous emission of erbium-doped fiber pumped by a 1480 nm laser diode. The measurement resolution of the sensor system could be enhanced through the modulation of injection current of the pump laser diode. The measurement resolution considering the fluctuation of the light source in the sensor system was ∼0.4 K in the room temperature regime and ∼0.07 K in the liquid nitrogen temperature regime.
KSP Keywords
Erbium-doped fiber, Injection current, Laser diode(LD), Light sources, Liquid nitrogen temperature, Low temperature(LT), Measurement resolution, Pump laser, Room-temperature, Sensor system, Temperature regime