Abstract
In this paper, we propose a novel polarization converter (PC) based on a photonic crystal fiber with an anisotropic square-lattice core consisting of circular air holes. Utilizing the core symmetry oriented at a 45 deg angle to the principal axes, an incident-polarized light beam can be completely rotated 90 deg. Simulation results obtained by using a vectorial finite-element beam propagation method show that the polarization conversion is achieved at a device length of 119 μm. Additionally, an improved PC element that can provide a highly consistent Gaussian-like mode distribution to decrease the splice loss with conventional fibers has also been studied. The polarization conversion efficiency is better than 99%, and the corresponding extinction ratio is better than over a wavelength range of 310 nm.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Zejun Zhang, Yasuhide Tsuji, and Masashi Eguchi
J. Opt. Soc. Am. B 33(9) 1808-1814 (2016)
Yanan Xu, Jinhui Yuan, Yuwei Qu, Shi Qiu, Xian Zhou, Binbin Yan, Kuiru Wang, Xinzhu Sang, and Chongxiu Yu
J. Opt. Soc. Am. B 40(1) 206-214 (2023)
Masashi Eguchi and Yasuhide Tsuji
J. Opt. Soc. Am. B 25(10) 1690-1701 (2008)