Open AccessWide band single polarization and polarization maintaining fibers using stress rods and air holes
Author(s) -
Xin Chen,
Mingjun Li,
Joohyun Koh,
Daniel A. Nolan
Publication year - 2008
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.16.012060
Subject(s) - birefringence , rod , materials science , optics , polarization maintaining optical fiber , polarization (electrochemistry) , single mode optical fiber , photonic crystal fiber , optical fiber , optoelectronics , fiber optic sensor , physics , medicine , alternative medicine , chemistry , pathology
We propose a new fiber design using both stress rods and air holes for making wide band single polarization fibers as well as polarization maintaining fibers. The key factor that makes the fiber design possible is that the stress-induced birefringence from the stress rods and the form birefringence from air holes are added constructively, which increases the total birefringence and allows more flexible choice of fiber parameters. We established a finite element model that is capable to study both the stress-optic effect and the wave-guide effect. Through the detailed modeling, we systematically explore the role of each major parameter. Different aspects of the fiber properties related to the fundamental mode cutoff, fiber birefringence and effective area are revealed. As a result, fibers with very large single polarization bandwidth as well as larger effective area are identified.