Analysis of a Y-branch polarization splitter using the full-vectorial beam-propagation method

Author

Yamauchi, Junji ; Kobori, Shingo ; Nakano, Hisamatsu

Author_Institution

Photonic Device Simulation Lab., Hosei Univ., Koganei, Japan

fYear

2003

fDate

1-3 Oct. 2003

Firstpage

71

Lastpage

74

Abstract

The polarization splitter with a Y-branch waveguide is investigated using the full-vectorial beam-propagation method. The splitter consists of a polymer waveguide and a birefringence polyimide that is buried under one branch. Calculation shows that the crosstalk reduces as the branch angle is decreased. For a branch angle of θ=1/400 rad, the splitter yields a crosstalk of less than -25 dB. It is also shown that polarization coupling occurs in the transition region of the Y-branch waveguide.

Keywords

birefringence; light polarisation; optical beam splitters; optical crosstalk; optical waveguide components; optical waveguide theory; Y-branch waveguide; birefringence polyimide; branch angle; crosstalk; full-vectorial beam-propagation method; polarization coupling; polarization splitter analysis; polymer waveguide; transition region; Analytical models; Birefringence; Crosstalk; Laboratories; Optical polarization; Optical waveguides; Polyimides; Polymers; Tellurium; Waveguide transitions;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics and Communications, 2003. ICECom 2003. 17th International Conference on

Print_ISBN

953-6037-39-4

Type

conf

DOI

10.1109/ICECOM.2003.1290957

Filename

1290957