Table of Contents
Laser Chemistry
Volume 2008, Article ID 416251, 20 pages
http://dx.doi.org/10.1155/2008/416251
Review Article

Induced Bragg Gratings in Optical Fibers and Waveguides Using an Ultrafast Infrared Laser and a Phase Mask

Optical Communications and Electrophotonics Group, Communications Research Centre Canada, 3701 Carling Avenue, Ottawa, Ontario, K2H 8S2, Canada

Received 26 March 2008; Accepted 22 April 2008

Academic Editor: Saulius Juodkazis

Copyright © 2008 Stephen J. Mihailov et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Since its development in 2003, the technique of Bragg grating inscription in optical fibers and waveguides with ultrafast infrared radiation and a phase mask has proven to be as simple as the standard UV-laser grating writing techniques but far more versatile. The ultrafast IR laser-based process allows for the creation of grating structures in glassy and crystalline materials that are not typically UV photosensitive. In this article, we will review the studies that have been performed at the Communications Research Centre Canada on the grating formation processes as well as applications of the ultrafast laser technique to fabricate gratings in various optical fibers and waveguides.