研究者情報 | 神奈川大学

チン　シュンペイ Chen Chunping 陳　春平所属神奈川大学工学部電気電子情報工学科神奈川大学大学院工学研究科工学専攻（電気電子情報工学領域）職種准教授
言語種別	英語
発行・発表の年月	2017/10
形態種別	学術雑誌
査読	査読あり
標題	Design of polarization converter based on photonic crystal fiber with anisotropic lattice core consisting of circular holes
執筆形態	共著
掲載誌名	J. Opt. Soc. Am. B
掲載区分	国外
巻・号・頁	34(10),pp.2227-2232
著者・共著者	Zejun Zhang, Yasuhide Tsuji, Masashi Eguchi, and Chun-Ping Chen,
概要	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 −20 dB over a wavelength range of 310 nm.