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Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass

Hughes, MA, Yang, W and Hewak, D 2007, 'Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass' , Applied Physics Letters, 90 , p. 131113.

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Abstract

The authors describe the fabrication of buried waveguides in a highly nonlinear chalcogenide glass, gallium lanthanum sulfide, using focused femtosecond laser pulses. Through optical characterization of the waveguides, they have proposed a formation mechanism and provide comparisons to previous work. Tunneling has been identified as the dominant nonlinear absorption mechanism in the formation of the waveguides. Single mode guidance at 633 nm has been demonstrated. The writing parameters for the minimum propagation loss of 1.47 dB/cm are 0.36 �J pulse energy and 50 �m/ s scanning speed.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: Applied Physics Letters
Publisher: American Institute of Physics
ISSN: 0003-6951
Related URLs:
Funders: MEXT
Depositing User: Dr Mark Hughes
Date Deposited: 10 Nov 2015 14:35
Last Modified: 05 Apr 2016 19:37
URI: http://usir.salford.ac.uk/id/eprint/36999

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