Fabrication and characterization of femtosecond laser written waveguides in chalcogenide glass
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).
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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.
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||13 Mar 2008|
|Last Modified:||01 Jun 2011 06:58|
|Contributors:||Hughes, M. (Author)
Yang, W. (Author)
Hewak, D. (Author)
|Date:||30 March 2007|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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