Open AccessPolarization splitter based on photonic crystal fibers
Author(s) -
Lin Zhang,
Changxi Yang
Publication year - 2003
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.001015
Subject(s) - optics , birefringence , splitter , polarization (electrochemistry) , photonic crystal , photonic crystal fiber , materials science , power dividers and directional couplers , beam splitter , fiber optic splitter , orthogonal polarization spectral imaging , optoelectronics , physics , optical fiber , laser , chemistry , fiber optic sensor
We report a new kind of polarization splitter based on dual-core photonic crystal fibers. The polarization splitter has a symmetric directional coupler configuration. Each core exhibits high birefringence, which gives rise to an adequate difference in the coupling lengths for the two orthogonal polarizations. A 1.7-mm-long splitter is obtained with the splitting ratio better than -11 dB and a bandwidth of 40 nm. The relationship between the length of the polarization splitter and the diameter of the air hole in the middle of the two cores is discussed.