Characterization of structural irregularities in highly birefringent photonic crystal fiber using torsional acoustic polarization coupling

被引：1

作者：

Hong, Kee Suk ^{[1
]}

Lee, Kwang Jo ^{[2
]}

Yeom, Dong-Il ^{[3
]}

Kim, Byoung Yoon ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[3] Ajou Univ, Div Energy Syst Res, Suwon 443749, South Korea

来源：

OPTICS COMMUNICATIONS | 2010年 / 283卷 / 20期

关键词：

OPTICAL-FIBER; DEGENERACY;

D O I：

10.1016/j.optcom.2010.05.072

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a novel method to characterize structural irregularities in a highly birefringent photonic crystal fiber (HB PCF) with high accuracy based on polarization coupling by torsional acoustic wave. Birefringence variation induced by the irregularities of air-hole structure in the fiber cross-section is analyzed via the transmission spectra of the acousto-optic coupling between two orthogonal polarization modes propagating along the fiber. The estimated maximum birefringence variation of two sections in the same batch of the HB PCF is 3 x 10(-6) and 10(-5), respectively, from nominal birefringence value of 4.86 x 10(-4). The comparison between the experimental results and the numerical simulation resulted in the estimation of few tens of nm variation in the air-hole structure in the PCF. Crown Copyright (c) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：4094 / 4098

页数：5