Open AccessIntegrated optic polarization splitter based on total internal reflection from a birefringent polymer
Author(s) -
Guanghao Huang,
Taehyun Park,
Woo-Sung Chu,
MinCheol Oh
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.021012
Subject(s) - birefringence , optics , materials science , total internal reflection , polarization (electrochemistry) , beam splitter , fabrication , splitter , fiber optic splitter , optoelectronics , polarization rotator , optical fiber , physics , laser , fiber optic sensor , medicine , chemistry , alternative medicine , pathology
An integrated optic polarization splitter with large fabrication tolerance and high reliability is required for optical signal processing in quantum-encrypted communication systems. A polarization splitter based on total internal reflection from a highly birefringent polymer-reactive mesogen-is proposed and demonstrated in this work. The device consists of a mode expander for reducing the wave vector distribution of the guided mode, and an interface with a large birefringence. Several polymers with suitable refractive indexes were used for fabricating the device. We obtained a polarization splitter with a low crosstalk (less than -30 dB), and a large fabrication tolerance.