title: Precise method for modifying birefringence of stress-induced high-birefringence fiber.
abstract: A precise method for modifying the birefringence of stress-induced high-birefringence (Hi-Bi) fiber is demonstrated by side polishing a Panda-type fiber with a maximum polished length of at least 14 cm. The polishing depth is controlled with an accuracy of 0.1 microm by piezoelectric ceramic microdisplacement. The accuracy of the birefringence is of the order of 10(-6). This method allows high-quality Hi-Bi fiber segments to be conveniently implemented with low loss at any desired birefringence between 3.17 x 10(-4) and 7.5 x 10(-5) in our experiment from one stress-induced Hi-Bi fiber and without changing the directions of the stress axes. The finite-element method is used to simulate the procedure, and the numerical results agree with the experiment.
authors.affiliation: Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, China.
authors.forename: Ruifeng
authors.initials: R
authors.lastname: Zhao
authors.forename: Li
authors.initials: L
authors.lastname: Pei
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Dong
authors.forename: Tigang
authors.initials: T
authors.lastname: Ning
authors.forename: Zhuoxuan
authors.initials: Z
authors.lastname: Li
authors.forename: Weiwei
authors.initials: W
authors.lastname: Jiang
authors.forename: Linyong
authors.initials: L
authors.lastname: Fan
authors.forename: Chenfang
authors.initials: C
authors.lastname: Zhang