The effect of gain recovery at the optical fiber amplifier by the input pulse train

광섬유 증폭기에서의 입력 펄스 열에 의한 Cain Recovery 특성

  • Published : 2002.05.01

Abstract

We studied the effect of gain recovery at the optical fiber amplifier by the input pulse trains We also theoretically analyzed the limitation of the saturation and recovery time for the PDFA(Praseodymium-Doped Fiber Amplifier) which has the spectral gain at 1.3${\mu}{\textrm}{m}$ band. We can predict the interval between the pulse train, pump power, and the effect of the saturation and recovery time which is affected to the amplification of the optical pulse.

본 논문은 광섬유 증폭기에서 입력 펄스 열에 따른 gain recovery 특성을 고찰하였다. 1.3$\mu\textrm{m}$대역에서 증폭특성을 갖는 PDFA(Praseodymium-Doped Fiber Amplifier)의 WDM 적용시 short pulse 열을 인가한 경우 발생할 수 있는 이득 포화 및 복구의 시간적 한계를 이론적으로 해석하였다. 펄스열의 간격과 펌프 파워, 그리고 펄스 간격에 따른 이득 포화 및 복구 시간이 광 펄스의 증폭에 미치는 영향을 예측할 수 있었다.

Keywords

References

  1. Y. Ohishi, T. Kanamori, T. Nishi, S. Takahashi and E. Snitzer, 'Concentration effect on gain of Pr3+-doped fluoride fiber for 1.3 ㎛ amplification', IEEE Photon. Technnol. Lett., vol. 4, 1338 (1992) https://doi.org/10.1109/68.180569
  2. Y. Ohishi, T. Kanamori, M. Shimizu, M. Yamada, Y. Terunuma, J. Temmyo, M. Wada and S. Sudo 'Praseodymium-Doped Fiber Amplifiers at 1.3㎛', IEICE Trans. Commun. E77-B, 421 (1994)
  3. V. Morin and E. Taufflieb, 'High output-power praseodymium-doped fiber amplifier single-pumped at 1030nm : analysis and results', IEEE journal of selected topics in Quantum Elec., vol. 3, no. 4, 1112 (1997) https://doi.org/10.1109/2944.649550
  4. Y. Ohishi, T. Kanamori, Y. Terunuma, M. Shimizu, M. Yamada and S. Sudo, 'Investigation of efficient pump scheme for Pr3+-doped fluoride fiber amplifiers', IEEE Photon. Technol. Lett. Vol. 6, No. 2, 195 (1994) https://doi.org/10.1109/68.275426
  5. M. Karasek, 'Analysis of gain dynamics in Pr3+-doped fluoride fiber amplifiers', IEEE Photon. Technol. Lett. Vol. 7, No. 3, 299 (1995) https://doi.org/10.1109/68.372752