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Proceedings Paper

Narrow-line, tunable, high-power diode laser pump for DPAL applications
Author(s): Rajiv Pandey; David Merchen; Dean Stapleton; David Irwin; Chuck Humble; Steve Patterson; Heiko Kissel; Jens Biesenbach
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Paper Abstract

We report on a high-power diode laser pump source for diode-pumped alkali lasers (DPAL), specifically rubidium alkali vapor lasers at 780nm, delivering up to 100W/bar with FWHM spectral line width of 0.06nm (~30GHz). This pump is based on a micro-channel water-cooled stack with collimation in both-axes. Wavelength-locking of the output spectrum allows absorption in one of the very narrow resonance lines of the atomic rubidium alkali vapor. To achieve these results, research was conducted to deliver the highest performance on all key components of the product from the diode laser bar which produces the optical power at 780nm to the external Bragg gratings which narrow the spectrum line width. We highlight the advancements in the epitaxy, device design, beam collimation, grating selection, alignment, tunability and thermal control that enable realization of this novel pump-source for DPALs. Design trade-offs will be presented.

Paper Details

Date Published: 23 May 2013
PDF: 16 pages
Proc. SPIE 8733, Laser Technology for Defense and Security IX, 873307 (23 May 2013); doi: 10.1117/12.2014301
Show Author Affiliations
Rajiv Pandey, DILAS Diode Laser Inc. (United States)
David Merchen, DILAS Diode Laser Inc. (United States)
Dean Stapleton, DILAS Diode Laser Inc. (United States)
David Irwin, DILAS Diode Laser Inc. (United States)
Chuck Humble, DILAS Diode Laser Inc. (United States)
Steve Patterson, DILAS Diode Laser Inc. (United States)
Heiko Kissel, DILAS Diodenlaser GmbH (Germany)
Jens Biesenbach, DILAS Diodenlaser GmbH (Germany)

Published in SPIE Proceedings Vol. 8733:
Laser Technology for Defense and Security IX
Mark Dubinskii; Stephen G. Post, Editor(s)

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