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

Authors
Fertein, E Przygodzki, C Delbarre, H Hidayat, A Douay, M Niay, P
Citation
E. Fertein et al., Refractive-index changes of standard telecommunication fiber through exposure to femtosecond laser pulses at 810 cm, APPL OPTICS, 40(21), 2001, pp. 3506-3508
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
APPLIED OPTICS
ISSN journal
00036935 → ACNP
Volume
40
Issue
21
Year of publication
2001
Pages
3506 - 3508
Database
ISI
SICI code
0003-6935(20010720)40:21<3506:RCOSTF>2.0.ZU;2-#
Abstract
We report on permanent refractive-index changes as great as 6 X 10(-3) in s tandard fibers on irradiation with tightly focused femtosecond (120-fs) nea r-IR (lambda = 800-nm) pulses. The refractive-index increase was measured t hrough changes in the transmission spectrum of an UV photowritten Bragg-gra ting-based Fabry-Perot interferometer. We depict the dependence of the inde x variation on exposure time. The changes in refractive index can be optimi zed after a few seconds of irradiation. The measured induced excess loss in creases during near-IR exposure. (C) 2001 Optical Society of America.