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Proceedings Paper

Real time distributed temperature measurement of the gain fiber in all-fiber laser employing OFDR technology
Author(s): Zichao Zhou; Xiaolin Wang; Long Huang; Pengfei Ma; Kai Han; Xiaojun Xu
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Paper Abstract

Thermal effect of the gain fiber is one of the main factors which limit the power improvement of high power fiber lasers. Using traditional temperature measurement methods, we can only obtain the surface temperature of fiber while the core temperature cannot be detected. In this paper, the temperature of the gain fiber core in all-fiber laser is measured by optical frequency domain reflectometry(OFDR). The fiber laser is operating at 1080nm and the wavelength of detecting light emitted by OFDR is approximately 1550nm. The different wavelength of the two lasers has ensured the proper operating of fiber laser without effecting the operating lasers at 1080nm. The maximum output power of the fiber laser is 58.95W and results show that OFDR is a practical way to monitor the temperature of fiber laser system.

Paper Details

Date Published: 25 October 2017
PDF: 6 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 1046419 (25 October 2017); doi: 10.1117/12.2285150
Show Author Affiliations
Zichao Zhou, National Univ of Defense Technology (China)
Xiaolin Wang, National Univ. of Defense Technology (China)
Long Huang, National Univ. of Defense Technology (China)
Pengfei Ma, National Univ. of Defense Technology (China)
Kai Han, National Univ. of Defense Technology (China)
Xiaojun Xu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Fiber Optic Sensing and Optical Communications
Zi-Sen Zhao; Leping Wei; Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Kenneth T. V. Grattan, Editor(s)

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