Refractive-index changes of standard telecommunication fiber through exposure to femtosecond laser pulses at 810 cm

被引：41

作者：

Fertein, E

Przygodzki, C

Delbarre, H

Hidayat, A

Douay, M

Niay, P

机构：

[1] Univ Littoral, Ctr Etud & Rech Lasers & Applicat, UMR, Lab Physico Chim Atmosphere, F-59140 Dunkerque, France

[2] Univ Lille 1, Ctr Etud & Rech Lasers & Applicat, Lab Phys Lasers Atomes & Mol, UMR 8523,Untie Format & Rech Phys, F-59655 Villeneuve Dascq, France

来源：

APPLIED OPTICS | 2001年 / 40卷 / 21期

关键词：

D O I：

10.1364/AO.40.003506

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on permanent refractive-index changes as great as 6 X 10(-3) in standard fibers on irradiation with tightly focused femtosecond (120-fs) near-IR (lambda = 800-nm) pulses. The refractive-index increase was measured through changes in the transmission spectrum of an UV photowritten Bragg-grating-based Fabry-Perot interferometer. We depict the dependence of the index variation on exposure time. The changes in refractive index can be optimized after a few seconds of irradiation. The measured induced excess loss increases during near-IR exposure. (C) 2001 Optical Society of America.

引用

页码：3506 / 3508

页数：3

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