[C-15] Electronics Simulation Technology

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)Candidate for Academic Incentive Award

[C-15-30] Design of SiN Waveguide Polarization Beam Splitter Using a Wide-Angle Finite-Element Beam Propagation Method Based on Transformation Optics

◎Gen Mabuchi¹, Akito Iguchi¹, Yasuhide Tsuji¹, Takeshi Fujisawa² (1. Muroran Institue of Technology, 2. Housei Univ.)

Keywords:

Silicon Photonics

In recent years, optical computing based on photonic integrated circuits has attracted attention as a high-speed and low-power information processing technology. In photonic integrated circuits, polarization beam splitters (PBSs), which separate the E11x and E11y modes, are important fundamental components, and compact, low-loss, and broadband operation is required. Since waveguide-type PBSs have structures that vary along the propagation direction, the beam propagation method (BPM) is effective for their analysis. However, in structures with relatively strong optical confinement, such as SiN waveguides, the analysis accuracy of conventional BPM may deteriorate due to the staircase approximation. Therefore, in this study, the design of a SiN waveguide-type PBS is investigated using a wide-angle finite-element beam propagation method based on transformation optics (TO-FE-BPM).