Abstract
Polarization beam splitters are pivotal in manipulating polarized light within photonic integrated circuits for various optical applications. This study introduces a single-mode polarization beam splitter comprising three waveguides realized with polymer materials. The device optimization process employed the beam propagation method, explicitly using the RSoft CAD BeamProp solver. Our proposed beam splitter performs exceptionally well with 99% complete and null light transmission efficiency. In particular, it demonstrates minimal insertion loss (0.04 dB for complete transmission and 0.07 dB for null transmission) and low coupling loss (0.03 dB and 0.04 dB for complete transmission, 21.9 dB and 36.3 dB for null transmission from input to bridge and bridge to output waveguides, respectively). Additionally, the beam splitter showcases significantly reduced crosstalk: ${-}{27}\;{\rm dB}$ and ${-}{26.98}\;{\rm dB}$ for TE modes during complete light transfer, and ${-}{36.28}\;{\rm dB}$ and ${-}{33.61}\;{\rm dB}$ for TM modes during null light transfer. These results underscore its potential for advancing integrated optical systems.
© 2024 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Fariha Tasnim, Noor Afsary, Md Omar Faruk Rasel, and Takaaki Ishigure
Opt. Continuum 2(5) 1040-1052 (2023)
Tianye Huang, Yuan Xie, Yiheng Wu, Zhuo Cheng, Shuwen Zeng, and Perry Shum Ping
Appl. Opt. 58(9) 2264-2268 (2019)
Sijie Dai and Jinbiao Xiao
Appl. Opt. 61(1) 126-134 (2022)