[13p-N103-1~12] 3.14 Optical control devices and optical fibers

[13p-N103-2] Demonstration of InP/InGaAsP polarization rotator based on mode evolution

〇Yuto Suzuki¹, Ryota Tanomura¹, Abdulaziz Elfiqi¹, Dawei Yu², Warakorn Yanwachirakul¹, Haifeng Shao², Takuo Tanemura¹, Yoshiaki Nakano¹ (1.The Univ. of Tokyo, 2.Hisilicon OptoElectronics Co., Ltd.,)

Keywords:polarization

As communication capacity increases, optical transmitters and receivers with monolithic integration of polarization control elements are required, and robust polarization control elements that can be monolithically integrated into InP-based optical integrated circuits are needed. we report the first fabrication and demonstration of a mode-evolved InP integrated polarization rotator with a half-ridge structure. The fabricated device achieved robust operation with a conversion efficiency of more than 88% for a waveguide width error of 75 nm in the entire C-band region.