Novel type II Bragg grating structures in silica fibers using femtosecond lasers and phase masks

DOI	Resolve DOI: https://doi.org/10.1109/JLT.2018.2866784
Author	Search for: Mihailov, Stephen¹; Search for: Hnatovsky, Cyril¹; Search for: Grobnic, Dan¹
Affiliation	National Research Council Canada. Security and Disruptive Technologies
Format	Text, Article
Subject	phase shift; phase mask; femtosecond laser; fiber Bragg gratings
Abstract	This review paper presents recent developments on the fabrication of novel thermally stable Type II fiber Bragg grating structures using femtosecond lasers and the phase mask technique. By manipulating the inscription beam and phase mask designs, exotic grating structures, such as ultrashort gratings < 100 μm in length, Fabry-Perot structures or π-phase shifted structures can be created that are stable at high temperatures. These novel structures can also be created directly through protective polymer coatings such as polyimide, thus simplifying their manufacture.
Publication date	2018-08-22
Publisher	IEEE
In	Journal of Lightwave Technology.
Language	English
Peer reviewed	Yes
NPARC number	23004245
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Record identifier	994bd921-2916-4bdc-8759-a3524995b39d
Record created	2018-10-15
Record modified	2020-03-16