Efficient, high-power monolithic two-dimensional surface-emitting diode laser arrays mounted in the junction-down configuration

Michael Jansen; Szutsun Simon Ou; Jane J. Yang; Moshe Sergant; Cynthia A. Hess; Chan A. Tu; Phillip Hayashida; Dennis P. Bowler; Fernando D. Alvarez; George M. Harpole; Mark A. Emanuel

doi:10.1117/12.146918

16 June 1993 Efficient, high-power monolithic two-dimensional surface-emitting diode laser arrays mounted in the junction-down configuration

Michael Jansen, Szutsun Simon Ou, Jane J. Yang, Moshe Sergant, Cynthia A. Hess, Chan A. Tu, Phillip Hayashida, Dennis P. Bowler, Fernando D. Alvarez, George M. Harpole, Mark A. Emanuel

Author Affiliations +

Proceedings Volume 1850, Laser Diode Technology and Applications V; (1993) https://doi.org/10.1117/12.146918
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

We review in-plane surface-emitting laser diode arrays and their applications. Efficient operation of monolithic, large area (0.54 cm², 108 emitters) two-dimensional surface- emitting GaAlAs laser diode arrays mounted junction-down on microchannel heat exchangers has been demonstrated. Devices with 1.5 micrometers thick cladding layers were operated quasi- continuous-wave to high peak output power densities (> 100 W/cm²), exhibited high power conversion efficiencies (22%), and full width emission spectra of < 4 nm at 2% - 5% duty cycles. Arrays with a 2.5 micrometers thick cladding region were operated under continuous wave conditions to 46 W/cm² power density levels. This corresponded to a 550 W/cm² heat flux extracted by microchannel heat exchanges.

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Michael Jansen, Szutsun Simon Ou, Jane J. Yang, Moshe Sergant, Cynthia A. Hess, Chan A. Tu, Phillip Hayashida, Dennis P. Bowler, Fernando D. Alvarez, George M. Harpole, and Mark A. Emanuel "Efficient, high-power monolithic two-dimensional surface-emitting diode laser arrays mounted in the junction-down configuration", Proc. SPIE 1850, Laser Diode Technology and Applications V, (16 June 1993); https://doi.org/10.1117/12.146918

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