Abstract

We propose an ultra-broadband and fabrication-tolerant polarization rotator-splitter (PRS) based on a waveguide with an L-shaped cross section and a Y-junction. The proposed PRS is based on the 220 nm silicon-on-insulator platform, and it shows less than 0.27 dB insertion losses and larger than 14 dB polarization extinction ratios over a wavelength range from 1200 to 1700 nm. To the best of our knowledge, the PRS working in the whole optical communication band is proposed for the first time.

© 2016 Chinese Laser Press

C + L band polarization rotator-splitter based on a compact S-bend waveguide mode demultiplexer

Daigao Chen, Min Liu, Yuguang Zhang, Lei Wang, Xiao Hu, Peng Feng, Xi Xiao, and Shaohua Yu
Opt. Express 29(7) 10949-10957 (2021)

Subwavelength-grating-assisted silicon polarization rotator covering all optical communication bands

Hongnan Xu and Yaocheng Shi
Opt. Express 27(4) 5588-5597 (2019)

Compact broadband ( O, E, S, C, L & U bands) silicon TE-pass polarizer based on ridge waveguide adiabatic S-bends

Humaira Zafar, Yanfen Zhai, Juan E. Villegas, Florent Ravaux, Kenneth L. Kennedy, Mauro F. Pereira, Mahmoud Rasras, Atif Shamim, and Dalaver H. Anjum
Opt. Express 30(6) 10087-10095 (2022)

Novel ultra-broadband polarization splitter-rotator based on mode-evolution tapers and a mode-sorting asymmetric Y-junction

Jing Wang, Ben Niu, Zhen Sheng, Aimin Wu, Wei Li, Xi Wang, Shichang Zou, Minghao Qi, and Fuwan Gan
Opt. Express 22(11) 13565-13571 (2014)

Ultra-broadband silicon polarization splitter-rotator based on the multi-mode waveguide

Hongnan Xu and Yaocheng Shi
Opt. Express 25(15) 18485-18491 (2017)