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학술지 Optimization of Spot-Size Converter for Low Polarization Dependent Loss of Waveguide Photodetector
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저자
최중선, 한원석, 김덕준, 김종회, 윤천주, 김동영, 권용환, 남은수
발행일
201312
출처
Optics Express, v.21 no.25, pp.30175-30182
ISSN
1094-4087
출판사
Optical Society of America(OSA)
DOI
https://dx.doi.org/10.1364/OE.21.030175
협약과제
12MB4400, 코히어런트 광송수신소자 개발, 권용환
초록
We present an optimization of spot-size converter (SSC) of waveguide photodetector (PD) for small polarization dependent loss (PDL). Beam-propagation method simulation gives responsivity for each polarization and SSC structure. From the calculated responsivity data, optimum structure of SSC is determined that can be implemented with a sufficient process tolerance. We confirm the optimization by measuring PDL of waveguide PD designed according to the structure obtained through the simulation. © 2013 Optical Society of America.
KSP 제안 키워드
Low polarization, Optimum structure, Polarization dependent loss, Spot size converter(SSC), Waveguide photodetector, beam propagation method, process tolerance