상세정보
학술지
Optimization of High Responsivity Waveguide Photodiode with a Thin Absorption Layer
- 발행일
- 200702
- 출처
- Applied Physics Letters, v.90 no.9, pp.1-3
- ISSN
- 0003-6951
- 출판사
- American Institute of Physics (AIP)
- 협약과제
- 06MB2800, 실리콘 기반 초고속 광인터커넥션 IC, 김경옥
- 초록
- The optimization of a waveguide photodiode (WGPD) having a thin absorption layer is discussed. With an absorption layer thickness of less than 0.1 μm, responsivity of 1.09 AW was achieved for lensed-fiber coupling. For flat-ended fiber coupling, responsivity of 0.93 AW was achieved. An absorption layer thickness of more than 100 횇 is required for high responsivity and low polarization dependency. A formula for frequency response in a WGPD with a thin absorption layer is also obtained. This formula gives the optimized WGPD structure for high speed operation with high responsivity. © 2007 American Institute of Physics.