상세정보
학술지
Tunable Multiwavelength Fiber Laser Employing a Comb Filter Based on a Polarization-Diversity Loop Configuration
- 저자
- 윤일용, 이용욱, 정재훈, 이병호
- 발행일
- 200604
- 출처
- IEEE/OSA Journal of Lightwave Technology, v.24 no.4, pp.1805-1811
- ISSN
- 0733-8724
- 출판사
- IEEE, OSA
- 초록
- A tunable multiwavelength fiber laser based on a semiconductor optical amplifier (SOA) is newly proposed. The proposed fiber laser employs a fiber comb filter based on a polarization-diversity loop configuration (PDLC) for the multiwavelength selection. The spectral characteristic of the comb filter is graphically explained by tracing the state of polarization (SOP) of the light propagating through the filter on the Poincare sphere. Particularly, the method of adjusting the filter characteristics is established with the help of the Poincare-sphere representation. The experimental results show that 18 laser lines oscillate with the signal to amplified spontaneous emission noise ratio over 25 dB. Particularly, all of the laser lines with a fixed channel spacing of ~ 0.8 nm can be continuously shifted by adjusting only a wave plate contained within the filter. © 2006 IEEE.
- KSP 제안 키워드
- Channel spacing, Comb filter, Filter characteristics, Poincare sphere, Polarization-diversity loop configuration, Semiconductor optical amplifiers(SOAs), Spectral characteristics, amplified spontaneous emission noise, multiwavelength fiber laser, state of polarization, wave plate