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Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass

Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass
Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass
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 µJ pulse energy and 50 µm/ s scanning speed.
0003-6951
131113-[3pp]
Hughes, M.
3544b2a0-06e1-4060-beb5-57543a230a03
Yang, W.
8d99a175-3cc8-44bc-99c2-cf431ae9a4ea
Hewak, D.
87c80070-c101-4f7a-914f-4cc3131e3db0
Hughes, M.
3544b2a0-06e1-4060-beb5-57543a230a03
Yang, W.
8d99a175-3cc8-44bc-99c2-cf431ae9a4ea
Hewak, D.
87c80070-c101-4f7a-914f-4cc3131e3db0

Hughes, M., Yang, W. and Hewak, D. (2007) Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass. Applied Physics Letters, 90 (13), 131113-[3pp]. (doi:10.1063/1.2718486).

Record type: Article

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 µJ pulse energy and 50 µm/ s scanning speed.

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More information

Published date: 30 March 2007

Identifiers

Local EPrints ID: 50684
URI: http://eprints.soton.ac.uk/id/eprint/50684
ISSN: 0003-6951
PURE UUID: 5a067463-a4ee-4089-8a57-fb60430e9d07
ORCID for D. Hewak: ORCID iD orcid.org/0000-0002-2093-5773

Catalogue record

Date deposited: 13 Mar 2008
Last modified: 15 Sep 2021 01:38

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