Abstract

A compact 90° three-branch beam splitter is proposed. The device relies on the use of a high contrast material system. It utilizes a rectangular resonant cavity for its operation, which ensures excitation of a resonant cavity mode with even symmetry in both the vertical and the horizontal directions. Numerical simulations using the method of lines (MOL) show that it is possible to control the power splitting ratio among the output arms over a wide range of values. In all the cases examined, the device reflectivity and the fraction of radiated power are kept low.

© 2005 IEEE

Compact 90° trench-based splitter for silicon-on-insulator rib waveguides

Yusheng Qian, Jiguo Song, Seunghyun Kim, and Gregory P. Nordin
Opt. Express 15(25) 16712-16718 (2007)

Compact highly-efficient polarization splitter and rotator based on 90° bends

Kang Tan, Ying Huang, Guo-Qiang Lo, Chengkuo Lee, and Changyuan Yu
Opt. Express 24(13) 14506-14512 (2016)

Three-output-channel photonic crystal splitter and switch based on nonlinear resonators and the self-collimation characteristics of a light beam

Kaizhu Liu, Haoran Fan, Shuai Feng, Honglian Guo, and Chuanbo Li
Appl. Opt. 58(35) 9548-9555 (2019)

Design of a compact polarizing beam splitter based on a photonic crystal ring resonator with a triangular lattice

Tianbao Yu, Jiehui Huang, Nianhua Liu, Jianyi Yang, Qinghua Liao, and Xiaoqing Jiang
Appl. Opt. 49(11) 2168-2172 (2010)

Periodic dielectric waveguide beam splitter based on co-directional coupling

Pi-Gang Luan and Kao-Der Chang
Opt. Express 15(8) 4536-4545 (2007)