Low-loss deposition of solgel-derived silica films on tapered fibers

被引：18

作者：

Kakarantzas, G ^{[1
]}

Leon-Saval, SG ^{[1
]}

Birks, TA ^{[1
]}

Russell, PSJ ^{[1
]}

机构：

[1] Univ Bath, Dept Phys, Optoelect Grp, Bath BA2 7AY, Avon, England

来源：

OPTICS LETTERS | 2004年 / 29卷 / 07期

关键词：

D O I：

10.1364/OL.29.000694

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Films of porous silica are deposited on the uniform waists of tapered fibers in minutes by a modified solgel dip coating method, inducing less than 0.2 dB of loss. The coated tapers are an ideal platform for realizing all-fiber devices that exploit evanescent-field interactions with the deposited porous film. As an example we demonstrate structural long-period gratings in which a periodic index variation in the film arises from the porosity variation produced by spatially varying exposure of the waist to a scanned CO2 laser beam. The long period grating is insensitive to temperature up to 800degreesC. (C) 2004 Optical Society of America.

引用

页码：694 / 696

页数：3

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