DocumentCode
868546
Title
Ultra-Broadband Mode Conversion With Acousto-Optic Coupling in Hole-Assisted Fiber
Author
Matsui, Takashi ; Nakajima, Kazuhide ; Shiraki, Kazuyuki ; Kurashima, Toshio
Author_Institution
NTT Access Network Service Syst. Labs., NTT Corp., Tsukuba
Volume
27
Issue
13
fYear
2009
fDate
7/1/2009 12:00:00 AM
Firstpage
2183
Lastpage
2188
Abstract
This paper describes the acousto-optic properties of hole-assisted fibers (HAFs) numerically and experimentally. We show that the HAF beat length between the guided and first higher-order modes has small wavelength dependence compared with that of the single mode fiber and so we can achieve broadband acousto-optic coupling. Ultra-broadband acousto-optic coupling is realized by using a HAF with flattened beat length characteristics. The coupling bandwidth reaches 120 nm, and can be controlled by designing the air hole structure.
Keywords
acousto-optical devices; holey fibres; optical control; optical design techniques; HAF beat length; acousto-optic coupling; acousto-optic device; air hole structure design; coupling bandwidth control; hole-assisted fiber; holey fiber; ultra-broadband mode conversion; wavelength dependency; Acousto-optic coupling; finite element method; hole-assisted fiber; holey fiber; mode conversion;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/JLT.2008.2005209
Filename
4926207
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