Title

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

Authors

Authors

L. Y. Xiong; P. Hofmann; A. Schulzgen; N. Peyghambarian;J. Albert

Comments

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Abbreviated Journal Title

Opt. Mater. Express

Keywords

REFRACTIVE-INDEX CHANGES; LASER; RADIATION; Materials Science, Multidisciplinary; Optics

Abstract

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

Journal Title

Optical Materials Express

Volume

4

Issue/Number

7

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

1427

Last Page

1435

WOS Identifier

WOS:000338875100017

ISSN

2159-3930

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