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Conferences > CLEOPR > 2001 > TuG3 > TuG3_4
  • The 4th Pacific Rim Conference on Lasers and Electro-Optics
  • Technical Digest Series (Optica Publishing Group, 2001),
  • paper TuG3_4

High Resolution Cryogenic Optical Fiber Sensor System using Erbium-Doped Fiber

Yong Wook Lee and Byoungho Lee

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Abstract

In this paper we propose a cryogenic optical fiber sensor which can measure the temperature at higher resolution as the temperature decreases using temperature characteristics of EDF pumped by a 1480nm laser diode and modulation of injection current of the pump laser diode. The measurement resolution considering the fluctuation of light source in the sensor systems is ~0.4K in the vicinity of the room temperature and ~0.07K in the vicinity of liquid nitrogen temperature.

© 2001 IEEE

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