[WE1] Polarization and Beam Shaping Components II

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[WE1-4] Topology Optimization for a Broadband Polarization Splitter-Rotator Based on Lithium Niobate-on-Insulator

○Haosheng Xiao¹, Feng Ye¹, H.Y. Fu², Qian Li¹ (¹Peking Univ., ²Tsinghua Univ.)

Keywords:

Optical polarization control devices,polarizer,rotator,and polarization beam splitter,Thin film lithium niobate passive devices

A broadband and efficient polarization splitter-rotator is designed through topology optimization. The device exhibits < 0.27 dB loss and < -20 dB crosstalk over a 300-nm bandwidth with a short length of 300 μm.