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.
131113-[3pp]
Hughes, M.
3544b2a0-06e1-4060-beb5-57543a230a03
Yang, W.
8d99a175-3cc8-44bc-99c2-cf431ae9a4ea
Hewak, D.
87c80070-c101-4f7a-914f-4cc3131e3db0
30 March 2007
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), .
(doi:10.1063/1.2718486).
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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Published date: 30 March 2007
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Local EPrints ID: 50684
URI: http://eprints.soton.ac.uk/id/eprint/50684
ISSN: 0003-6951
PURE UUID: 5a067463-a4ee-4089-8a57-fb60430e9d07
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Date deposited: 13 Mar 2008
Last modified: 15 Mar 2024 10:10
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Author:
M. Hughes
Author:
W. Yang
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