Waveguides in chalcogenide glasses produced by a train of femtosecond laser pulses

Oleg M. Efimov; Leonid B. Glebov; S. H. Park; Kathleen A. Richardson; Eric W. Van Stryland; Thierry Cardinal; M. Couzi; J.-L. Bruneel

doi:10.1117/12.425039

12 April 2001 Waveguides in chalcogenide glasses produced by a train of femtosecond laser pulses

Oleg M. Efimov, Leonid B. Glebov, S. H. Park, Kathleen A. Richardson, Eric W. Van Stryland, Thierry Cardinal, M. Couzi, J.-L. Bruneel

Author Affiliations +

Proceedings Volume 4347, Laser-Induced Damage in Optical Materials: 2000; (2001) https://doi.org/10.1117/12.425039
Event: Laser-Induced Damage in Optical Materials: 2000, 2000, Boulder, CO, United States

Abstract

Waveguide writing using a train of femtosecond laser pulses at 850 nm, in the transparent spectral region of bulk As₄₀S₆₀ glasses is reported. Wave guides were written by translating the glass sample along the optical axis of a strongly focused laser beam. Refractive index variation, linear absorption spectra, and Raman spectra of the exposed region were measured. The chemical mechanism responsible for the index variation has been correlated to a breakage of the glass' As-S bonds and formation of As-As and S-S bonds and increase of the disorder of the glass network. The nonlinear optical origin leading to this phenomenon has been shown, and possible mechanisms are discussed.

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Oleg M. Efimov, Leonid B. Glebov, S. H. Park, Kathleen A. Richardson, Eric W. Van Stryland, Thierry Cardinal, M. Couzi, and J.-L. Bruneel "Waveguides in chalcogenide glasses produced by a train of femtosecond laser pulses", Proc. SPIE 4347, Laser-Induced Damage in Optical Materials: 2000, (12 April 2001); https://doi.org/10.1117/12.425039

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