title: Optimization of spot-size converter for low polarization dependent loss of waveguide photodetector.
abstract: 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.
authors: Joong-Seon
authors: JS
authors: Choe
authors: Won-Seok
authors: WS
authors: Han
authors: Duk Jun
authors: DJ
authors: Kim
authors: Jong-Hoi
authors: JH
authors: Kim
authors: Chun Ju
authors: CJ
authors: Youn
authors: Dong-Young
authors: DY
authors: Kim
authors: Yong-Hwan
authors: YH
authors: Kwon
authors: Eun-Soo
authors: ES
authors: Nam
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008962:Models, Theoretical; D010783:Photometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*