Photosensitivity and thermal stability of UV-induced fiber Bragg gratings in phosphate glass fibers

被引：5

作者：

Xiong, Lingyun ^{[1
]}

Hofmann, Peter ^{[2
]}

Schuelzgen, Axel ^{[2
]}

Peyghambarian, N. ^{[3
]}

Albert, Jacques ^{[1
]}

机构：

[1] Carleton Univ, Dept Elect, Ottawa, ON K1S 5B6, Canada

[2] Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando, FL 32816 USA

[3] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA

来源：

OPTICAL MATERIALS EXPRESS | 2014年 / 4卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

REFRACTIVE-INDEX CHANGES; LASER; RADIATION;

D O I：

10.1364/OME.4.001427

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The photosensitivity of highly Er/Yb doped and undoped phosphate glass fibers is characterized under irradiation with intense pulsed 193 nm light from an ArF excimer laser through a phase mask. The ultraviolet photosensitivity of the active fibers is shown to be roughly half that of the passive fibers. We also demonstrate that the strong growth of the fiber Bragg grating reflectivity observed upon heating at temperatures between 100 - 250 degrees C is directly related to the UV irradiation time, but not to the size of the index modulation of the seed grating or even to the fiber type (Er/Yb doped or undoped). The conditions to reliably obtain final index modulations amplitudes between 5 and 10 x 10(-5) are given. (C) 2014 Optical Society of America

引用

页码：1427 / 1435

页数：9

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