Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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External Cavity Laser with a Tunable Chirped Fiber Bragg Grating for Adjusting the Number of Longitudinal Laser Mode

외부 공진기 레이저의 발진 모드 수 조절에 관한 연구

  • Yook, Tae-Kyung (School of Information and Communications Engineering, SungKyunKwan University) ;
  • Lee, Kyung-Shik (School of Information and Communications Engineering, SungKyunKwan University) ;
  • Park, Manh-Yong (WDM Passive Optical Network Technology Team Electronics and Telecommunications Research Institute) ;
  • Kim, Byoung-Whi (WDM Passive Optical Network Technology Team Electronics and Telecommunications Research Institute)
  • 육태경 (성균관대학교 정보통신공학부 광통신 연구실) ;
  • 이경식 (성균관대학교 정보통신공학부 광통신 연구실) ;
  • 박만용 (한국전자통신연구원) ;
  • 김병휘 (한국전자통신연구원)
  • Published : 2005.10.01
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Abstract

we propose an external cavity laser which can adjust the number of longitudinal laser mode by using a tunable chirped fiber. Bragg grating. By inducing a tunable temperature gradient in a uniform fiber Bragg grating, the bandwidth of the unform fiber Bragg grating can be tuned. With the chirped fiber Bragg grating as an external reflector of the external cavity laser, the number of longitudinal laser mode was able to be tuned from one to two or three modes.

처프된 광섬유 브라그 격자를 사용하여 발진모드 수를 조절할 수 있는 외부 공진기 레이저를 제안하였다. 광섬유 브라그 격자에 인가되는 선형적인 온도차를 변화시킴으로써 광섬유 브라그 격자의 반사 대역폭을 조절할 수 있었으며 이러한 격자를 외부 공진기 레이저의 외부 반사경으로 사용하여 발진모드 수를 단일모드에서 세 개의 모드까지 조절할 수 있었다.

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References

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