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      Measuring photodarkening from Ytterbium-doped fiber amplifier at 1064 nm wavelength emission

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      Author
      Li, Nanxi
      Yoo, Seongwoo
      Xue, Jin
      Yu, Xia
      Shum, Perry Ping
      Date of Issue
      2012
      Conference Name
      Photonics Global Conference (2012 : Singapore)
      School
      School of Electrical and Electronic Engineering
      Research Centre
      Singapore Institute of Manufacturing Technology
      Abstract
      In this paper, photodarkening effect in Ytterbium doped fiber (YDF) amplifier is experimentally investigated and analyzed. The experimental measurement on such effect is conducted on an YDF amplifier at 1064 nm wavelength emission, under both saturated and unsaturated operational regimes. Our results demonstrate that saturated operation created by higher stimulating power level is favored to mitigate the photodarkening effect as well as to enhance the amplifier's long term reliability. Such phenomenon is explained in terms of population inversion level of Ytterbium ion doped in fiber.
      Subject
      DRNTU::Engineering::Electrical and electronic engineering
      Type
      Conference Paper
      Rights
      © 2012 IEEE.
      Collections
      • EEE Conference Papers
      http://dx.doi.org/10.1109/PGC.2012.6458043
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