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Proceedings Paper

High-power, high-duty-cycle operation of monolithic two-dimensional surface-emitting diode laser arrays in the junction-down configuration
Author(s): Michael Jansen; Szutsun Simon Ou; Jane J. Yang; Moshe Sergant; Cynthia A. Hess; Chan A. Tu; Phillip Hayashida; D. Bowier; Fernando D. Alvarez; George M. Harpole; Mark A. Emanuel
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Paper Abstract

High-power, high-duty cycle and continuous wave operation of large-area monolithic 2D surface-emitting GaAlAs laser diode arrays mounted junction-down on microchannel heat exchangers have been demonstrated. Devices mounted don 2-mm-thick Cu heat spreaders were operated to peak output power densities of > 100 W/cm2 at 35% duty cycles,a nd exhibited high power conversion efficiencies, and full width emission spectra of < 4nm. Arrays mounted on 1-mm-thick heat spreaders were operated under continuous wave operating condition to approximately equals 50 W/cm2 power density levels. Silicon microchannel heat exchangers with a measured thermal resistance per unit are of 0.0324 degree(s)C cm2/W were used to removed up to 550 W/cm2 of excess heat generated by the arrays.

Paper Details

Date Published: 1 June 1994
PDF: 9 pages
Proc. SPIE 2148, Laser Diode Technology and Applications VI, (1 June 1994); doi: 10.1117/12.176600
Show Author Affiliations
Michael Jansen, APT (United States)
Szutsun Simon Ou, APT (United States)
Jane J. Yang, APT (United States)
Moshe Sergant, TRW Space & Electronics Group (United States)
Cynthia A. Hess, TRW Space & Electronics Group (United States)
Chan A. Tu, TRW Space & Electronics Group (United States)
Phillip Hayashida, TRW Space & Electronics Group (United States)
D. Bowier, TRW Space & Electronics Group (United States)
Fernando D. Alvarez, TRW Space & Electronics Group (United States)
George M. Harpole, TRW Space & Electronics Group (United States)
Mark A. Emanuel, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 2148:
Laser Diode Technology and Applications VI
Pei Chuang Chen; Lawrence A. Johnson; Henryk Temkin, Editor(s)

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