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Applied Optics

Applied Optics


  • Vol. 40, Iss. 21 — Jul. 20, 2001
  • pp: 3506–3508

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

Eric Fertein, Christophe Przygodzki, Hervé Delbarre, Arif Hidayat, Marc Douay, and Pierre Niay  »View Author Affiliations

Applied Optics, Vol. 40, Issue 21, pp. 3506-3508 (2001)

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We report on permanent refractive-index changes as great as 6 × 10-3 in standard fibers on irradiation with tightly focused femtosecond (120-fs) near-IR (λ = 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.

© 2001 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(140.7090) Lasers and laser optics : Ultrafast lasers
(160.2290) Materials : Fiber materials
(190.4180) Nonlinear optics : Multiphoton processes
(230.1480) Optical devices : Bragg reflectors

Original Manuscript: July 27, 2000
Revised Manuscript: January 4, 2001
Published: July 20, 2001

Eric Fertein, Christophe Przygodzki, Hervé Delbarre, Arif Hidayat, Marc Douay, and Pierre Niay, "Refractive-index changes of standard telecommunication fiber through exposure to femtosecond laser pulses at 810 cm," Appl. Opt. 40, 3506-3508 (2001)

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