DocumentCode
1318400
Title
Moire phase masks for automatic pure apodisation of fibre Bragg gratings
Author
Albert, J. ; Hill, K.O. ; Johnson, D.C. ; Bilodeau, F. ; Rooks, M.J.
Author_Institution
Communication Res. Centre, Ottawa, Ont., Canada
Volume
32
Issue
24
fYear
1996
fDate
11/21/1996 12:00:00 AM
Firstpage
2260
Lastpage
2261
Abstract
A Moire technique is used in the fabrication of a diffractive phase mask by electron beam lithography. The phase mask has a varying diffraction efficiency designed to produce apodised fibre Bragg gratings with a uniform ultraviolet beam exposure. Since the illumination is uniform, the average induced refractive index is constant along the grating and pure apodisation results
Keywords
moire fringes; Moire phase masks; automatic pure apodisation; average induced refractive index; diffraction efficiency; diffractive phase mask; electron beam lithography; fibre Bragg gratings; ultraviolet beam exposure;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19961469
Filename
556803
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