Journal of the Optical Society of Korea

  • 제7권2호
  • /
  • Pages.64-66
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  • 2003
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Double-Pass Two-Stage EDFA with Gain-Flattening Filters

  • Sohn, Ik-Bu (Department of Electronic Engineering, Kyungpook National University) ;
  • Baek, Jang-Gi (Department of Electronic Engineering, Kyungpook National University) ;
  • Song, Jae-Won (Department of Electronic Engineering, Kyungpook National University)
  • 투고 : 2003.03.24
  • 발행 : 2003.06.01
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초록

The optical gain and noise figure improved double-pass two-stage EDFA using a mirror, circulator, and gain-flattening filters is proposed. By double passing the pump light and removing the ASE propagating into the input part, the signal gain of 5 ㏈ and noise figure of 2.1 ㏈ are improved compared to the conventional single- and double-pass EDFA With gain-fattening filters in the second stage of EDFA, we obtain an improved flat gain with a gain flatness less than 1 ㏈ over 33-nm wavelength range at the 980-nm pump power of 86 ㎽.

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참고문헌

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  6. J. T. Ahn, H. K. Lee, M. Y. Jeon, D. S. Lim, D. H. Cho, H. H. Suh, and K. H. Kim, “Double-path erbium-doped fiber amplifier with enhanced noise figure characteristics,” in in Conference of Lasers and Electro-Optics '2000, Optical Society of America, pp. 282-283, 2000. https://doi.org/10.1109/CLEO.2000.907017
  7. I. B. Sohn, N. K. Lee, H. W. Kwon, and J. W. Song, “Tunable gain-flattening filter using microbending long-period fiber gratings,” Optical Engineering, vol. 41, no. 7, pp. 1465−1466, 2002. https://doi.org/10.1117/1.1481899

피인용 문헌

  1. Tunable Mechanically Formed Long-Period Fiber Gratings using Periodically Arrayed Metal Wires vol.16, pp.5, 2005, https://doi.org/10.3807/KJOP.2005.16.5.401
  2. Thermo-optically tunable band-rejection filters using mechanically formed long-period fiber gratings vol.30, pp.20, 2005, https://doi.org/10.1364/OL.30.002688