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Efficient room-temperature continuous-wave AlGaInP/AlGaAs visible (670 nm) vertical-cavity surface-emitting laser diodes

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6 Author(s)
Schneider, R.P. ; Sandia Nat. Labs., Albuquerque, NM, USA ; Choquette, K.D. ; Lott, J.A. ; Lear, K.L.
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Significant improvement in the performance of AlGaInP/AlGaAs visible vertical-cavity surface-emitting laser diodes has been achieved in gain-guided planar-geometry devices utilizing proton implants to define the current injection path. Threshold currents as low as 1.25 mA were measured on 10 /spl mu/m-diameter devices, with maximum power output of 0.33 mW from larger devices. Continuous-wave (cw) lasing was achieved at temperatures as high as 45/spl deg/C. The improved diode performance is attributed to better lateral heat-sinking and reduced parasitic heat generation afforded by the planar device structure, relative to previously-reported air-post structures. This work represents the first realization of efficient room-temperature operation of AlGaInP-based visible VCSEL diodes.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:6 ,  Issue: 3 )

Date of Publication:

March 1994

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