Electro-tunable liquid crystal waveguide laser

Matsui, Tatsunosuke; Ozaki, Masanori; Yoshino, Katsumi

Proceedings of SPIE - The International Society for Optical Engineering, 2004, 5518, 220-231

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Identifier to cite or link to this item: https://hdl.handle.net/11094/76949

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Title
Electro-tunable liquid crystal waveguide laser
Creator
NRID
1000080452225 1000080452225
CreatorName
Matsui, Tatsunosuke
NRID
1000050204186 1000050204186
ORCID
0000-0002-9556-4225 0000-0002-9556-4225
researchmap permalink
read0014092 read0014092
Scopus Author ID
55490143900 55490143900
CreatorName
Ozaki, Masanori
NRID
1000070029205 1000070029205
CreatorName
Yoshino, Katsumi
Subject
Liquid crystal
Tunable laser
Distributed feedback laser
Waveguide
Holographic excitation
Description
Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States
Tatsunosuke Matsui, Masanori Ozaki, and Katsumi Yoshino "Electro-tunable liquid crystal waveguide laser", Proc. SPIE 5518, Liquid Crystals VIII, (15 October 2004). DOI: https://doi.org/10.1117/12.557493
Abstract
Electrically tunable laser action has been demonstrated in a dye-doped nematic liquid crystal (NLC) waveguide by holographic excitation. The optical feedback were provided by a transient grating induced by two-beam interference using Lloyd mirror configuration, and the distributed feedback (DFB) laser action was observed. Electrical tuning of lasing wavelength was realized due to the change of the effective refractive index of the NLC core layer caused by the reorientation of NLC molecules. The total shift of lasing wavelength was about 30 nm, which could be realized with less than about 1.4 V of applied voltage. Based on a waveguiding mode theory, numerical analysis of TM-guided mode in the presence of applied electric field was performed, and field-induced tuning of the lasing wavelength was investigated in detail. Prospects for the realization of a single-mode operation and tuning of the lasing wavelength was also shown. Based on the numerical results, single-mode operation of lasing was experimentally realized utilizing NLC with low refractive indices.
Publisher
SPIE
Source Title
Proceedings of SPIE - The International Society for Optical Engineering
Volume (Issue)
5518
Page
220-231
Date of Issued
2004-10-15
Language
English
Handle URL
https://hdl.handle.net/11094/76949
PISSN
0277786X
NCID
AA10619755
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1117/12.557493
Access Rights
open access
oaire:version
Version of Record
Category
会議発表論文 Conference Paper