상세정보
학술지
Two-Step Laterally Tapered Spot-Size Converter 1.55-μm DFB Laser Diode Having a High Slope Efficiency
- 발행일
- 200610
- 출처
- IEEE Photonics Technology Letters, v.18 no.20, pp.2138-2140
- ISSN
- 1041-1135
- 출판사
- IEEE
- 협약과제
- 06ZT1100, 광가입자망(FTTH)서비스 개발 실험사업, 김봉태
- 초록
- We demonstrate a two-step lateral tapered 1.55-μm spot-size converter distributed feedback laser diode (SSC DFB LD) having slope efficiencies as high as 0.457 and 0.319 mW/mA measured at 25 °C and 85 °C, respectively. The SSC DFB LD fabricated by using a nonselective grating process has a double core waveguide structure including a planar buried heterostructure type active waveguide and a ridge type passive waveguide. The fabricated SSC DFB LD operates at 1.553-μm wavelength and shows a far-field pattern in horizontal and vertical directions of 7.3째 and 11.6째, respectively. © 2006 IEEE.
- KSP 제안 키워드
- Active waveguide, DFB laser, Distributed feedback lasers(DFBs), High slope, Laser diode(LD), Slope efficiency, Spot size converter(SSC), Spot-size converter distributed feedback laser diode(SSC DFB LD), Two-Step, Waveguide Structure, buried heterostructure