상세정보
학술지
A Widely Tunable, Dual-Wavelength Fiber Laser Incorporating Two Polymer Waveguide Bragg Gratings
- 발행일
- 201310
- 출처
- Laser Physics Letters, v.10 no.12, pp.1-4
- ISSN
- 1612-2011
- 출판사
- WILEY-VCH Verlag GmbH & Co. KGaA
- 협약과제
- 13VE1200, 테라헤르츠 영상?분광 복합 포터블 스캐너 기술 개발 , 박경현
- 초록
- We present a continuously tunable dual-wavelength fiber laser based on polymer waveguide Bragg grating (PWBG) filters. The PWBG filters are used as wavelength selective components in the laser cavity. The 3 dB linewidth of the lasing wavelength is measured to be 0.02-0.04 nm over the whole wavelength tuning range. This range is 18.9 nm, from 1546.6 to 1527.7 nm. A linear response of the peak wavelength to the applied electrical power is achieved. The tuning efficiency of the single wavelength is -0.19 nm mW-1. The wavelength spacing for the dual-wavelength fiber laser is tuned from 1.2 to 18.9 nm. The side-mode suppression ratio achieved is more than 35 dB over the whole tuning range. Stability of the dual-wavelength laser is accomplished by careful adjustment of the polarization states of the dual wavelengths. © 2013 Astro Ltd.
- KSP 제안 키워드
- Bragg grating(FBG), Continuously tunable, Dual-wavelength fiber laser, Dual-wavelength laser, Electrical power, Laser cavity, Peak wavelength, Single wavelength, Waveguide Bragg grating(WBG), Wavelength tuning range, Widely tunable