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Proceedings Paper

High-power transmission characterization of Chalcogenide glasses using a Tm:fiber laser system
Author(s): Pankaj Kadwani; Joshua Bradford; R. Andrew Sims; David Musgraves; Kathleen Richardson; Lawrence Shah; Martin C. Richardson
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Paper Abstract

Chalcogenide samples with varying selenium concentrations, As10Se90, As30Se70, As40Se60, and As50Se50, were characterized for high power transmission using a Tm:fiber laser system. The Tm:fiber laser oscillator consists of a LMA fiber with 25/400 μm core/cladding diameters pumped by 793 nm diode. The output beam was collimated to a 3 mm beam diameter, and transmitted through the chalcogenide samples at CW powers up to 23 W. We measure the transmission as a function of incident power, as well as some initial characterization of surface damage from nanosecond pulses at 2 μm. Furthermore, we utilize a wavefront sensor to characterized the thermal lens induced by the Tm:fiber laser.

Paper Details

Date Published: 6 February 2012
PDF: 5 pages
Proc. SPIE 8239, High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications, 82390A (6 February 2012); doi: 10.1117/12.909505
Show Author Affiliations
Pankaj Kadwani, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Joshua Bradford, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
R. Andrew Sims, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
David Musgraves, Clemson Univ. (United States)
Kathleen Richardson, Clemson Univ. (United States)
Lawrence Shah, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Martin C. Richardson, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 8239:
High Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications
Eckhard Beyer; Timothy Morris, Editor(s)

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