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학술대회 Optimization of Waveguide Photodetector with Thin Absorbing Layer and Large Responsivity
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저자
최중선, 김덕준, 한원석, 김종회
발행일
202002
출처
SPIE OPTO 2020(SPIE 11309), pp.1-6
DOI
https://dx.doi.org/10.1117/12.2543023
협약과제
19HB2500, 파장당 400G 이상의 차세대 광전달망 소자·부품 개발, 김종회
초록
We present optimized structure of waveguide photodetector (WGPD) having large responsivity in spite that its absorption layer is thin. Through beam-propagation method simulations, spot-size converter integrated WGPD is found to be able to have larger responsivity with thinner absorbing layer. Calculated responsivity and polarization dependent loss of the optimized design are 0.83 A/W and 0.13 dB with 150-nm-thick and 25-μm-long absorber.
키워드
Evanescent coupling, High speed, Responsivity, Spot-size converter, Waveguide photodetector
KSP 제안 키워드
Absorbing layer, Absorption layer, Evanescent coupling, High Speed, Optimized structure, Polarization dependent loss, Spot size converter(SSC), Waveguide photodetector, beam propagation method, optimized design