The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Le cristal optique non linéaire organique tosylate de 4-(p-diméthylaminostyryl)-1-méthylpridinium (DAST) a un coefficient électro-optique (EO) plus grand que celui de LiNbO3 cristal. Ainsi, DAST est un matériau prometteur pour les dispositifs de commutation EO. Pour utiliser efficacement son grand coefficient EO, une structure de guide d’onde est souhaitable. Nous avons fabriqué avec succès deux types de guides d'ondes à canal optique à cristal DAST. L'un est un guide d'ondes greffé en série combinant un DAST et un polymère transparent en utilisant la combinaison d'un photoprocessus standard et d'une gravure ionique réactive (RIE). Étant donné que DAST présente une perte optique importante, certaines parties du guide d'ondes doivent être composées d'un polymère transparent avec une structure greffée en série avec DAST. Cette structure réduit non seulement les pertes de propagation mais également les pertes d'entrée/sortie. Cette technique de fabrication de guides d'ondes greffés en série pour cristaux organiques actifs est disponible pour de nombreux types de cristaux dotés d'une fonction de dispositif. L'autre est un guide d'ondes à canal réalisé par une technique de photo-blanchiment. La partie gainante du guide d’ondes DAST a été photo-blanchie par irradiation de lumière UV. Les couches de revêtement inférieure et supérieure étaient composées de résine durcie aux UV qui ne dissolvait pas le cristal DAST. Cette technique est très pratique pour créer un guide d'ondes DAST en raison de sa procédure simple pour créer une structure de noyau-gaine de DAST par rapport au photo-processus standard et au RIE.
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Kyoji KOMATSU, Kazuya TAKAYAMA, Bin CAI, Toshikuni KAINO, "Waveguide Fabrications of 4-(4-Dimethylaminostyryl)-1-Methylpyridinium Tosylate (DAST) Crystal" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 6, pp. 1258-1263, June 2002, doi: .
Abstract: Organic nonlinear optical crystal 4-(p-dimethylaminostyryl)-1-methylpridinium tosylate (DAST) has a larger electro-optic (EO) coefficient than that of LiNbO3 crystal. Thus, DAST is a promising material for EO switching device. To use its large EO coefficient effectively, a waveguide structure is desirable. We have successfully fabricated two types of DAST crystal optical channel waveguide. One is a serially grafted waveguide combining a DAST and a transparent polymer by using the combination of standard photo-process and reactive ion-etching (RIE). Because DAST has large optical loss, parts of the waveguide should be composed of transparent polymer with a serially grafted structure with DAST. This structure reduced not only a propagation loss but also input/output losses. This serially graft waveguide fabrication technique for active organic crystal is available to many types of crystals with device function. The other is a channel waveguide made by a photo-bleaching technique. The cladding part of DAST waveguide was photo-bleached by irradiation of UV light. Under and over cladding layer were composed with UV-cured resin that did not dissolve the DAST crystal. This technique is very convenient for making DAST waveguide because of its simple procedure to make core-cladding structure of DAST compared to standard photo-process and RIE.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_6_1258/_p
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@ARTICLE{e85-c_6_1258,
author={Kyoji KOMATSU, Kazuya TAKAYAMA, Bin CAI, Toshikuni KAINO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Waveguide Fabrications of 4-(4-Dimethylaminostyryl)-1-Methylpyridinium Tosylate (DAST) Crystal},
year={2002},
volume={E85-C},
number={6},
pages={1258-1263},
abstract={Organic nonlinear optical crystal 4-(p-dimethylaminostyryl)-1-methylpridinium tosylate (DAST) has a larger electro-optic (EO) coefficient than that of LiNbO3 crystal. Thus, DAST is a promising material for EO switching device. To use its large EO coefficient effectively, a waveguide structure is desirable. We have successfully fabricated two types of DAST crystal optical channel waveguide. One is a serially grafted waveguide combining a DAST and a transparent polymer by using the combination of standard photo-process and reactive ion-etching (RIE). Because DAST has large optical loss, parts of the waveguide should be composed of transparent polymer with a serially grafted structure with DAST. This structure reduced not only a propagation loss but also input/output losses. This serially graft waveguide fabrication technique for active organic crystal is available to many types of crystals with device function. The other is a channel waveguide made by a photo-bleaching technique. The cladding part of DAST waveguide was photo-bleached by irradiation of UV light. Under and over cladding layer were composed with UV-cured resin that did not dissolve the DAST crystal. This technique is very convenient for making DAST waveguide because of its simple procedure to make core-cladding structure of DAST compared to standard photo-process and RIE.},
keywords={},
doi={},
ISSN={},
month={June},}
Copier
TY - JOUR
TI - Waveguide Fabrications of 4-(4-Dimethylaminostyryl)-1-Methylpyridinium Tosylate (DAST) Crystal
T2 - IEICE TRANSACTIONS on Electronics
SP - 1258
EP - 1263
AU - Kyoji KOMATSU
AU - Kazuya TAKAYAMA
AU - Bin CAI
AU - Toshikuni KAINO
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2002
AB - Organic nonlinear optical crystal 4-(p-dimethylaminostyryl)-1-methylpridinium tosylate (DAST) has a larger electro-optic (EO) coefficient than that of LiNbO3 crystal. Thus, DAST is a promising material for EO switching device. To use its large EO coefficient effectively, a waveguide structure is desirable. We have successfully fabricated two types of DAST crystal optical channel waveguide. One is a serially grafted waveguide combining a DAST and a transparent polymer by using the combination of standard photo-process and reactive ion-etching (RIE). Because DAST has large optical loss, parts of the waveguide should be composed of transparent polymer with a serially grafted structure with DAST. This structure reduced not only a propagation loss but also input/output losses. This serially graft waveguide fabrication technique for active organic crystal is available to many types of crystals with device function. The other is a channel waveguide made by a photo-bleaching technique. The cladding part of DAST waveguide was photo-bleached by irradiation of UV light. Under and over cladding layer were composed with UV-cured resin that did not dissolve the DAST crystal. This technique is very convenient for making DAST waveguide because of its simple procedure to make core-cladding structure of DAST compared to standard photo-process and RIE.
ER -