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High power, high-efficiency quasi-CW two-dimensional laser diode arrays

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6 Author(s)
Harnagel, G.L. ; Spectra Diode Labs., San Jose, CA, USA ; Ahrabi, M. ; Browder, G.S., Jr. ; Worland, D.P.
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Optical output power densities of 2000 W/cm2 have been obtained from 0.4 cm2 and 0.2 cm2 stacked AlGaAs laser arrays with electrical-to-optical conversion efficiencies of 43% for pulse widths of 200 mu s. Arrays were assembled to facilitate back-cooling, and a five-bar stack was operated at 8% duty cycle with an average output power of 24 W.

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Electronics Letters  (Volume:27 ,  Issue: 1 )