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High-power single-mode selectively oxidized vertical-cavity surface-emitting lasers

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5 Author(s)
B. Weigl ; Dept. of Optoelectron., Ulm Univ., Germany ; M. Grabherr ; R. Michalzik ; G. Reiner
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Single-mode vertical-cavity top-surface-emitting lasers with maximum output power of 2.7 mW and side-mode suppression of 50 dB have been fabricated using solid source MBE for growth and selective oxidation to define the 3-μm diameter active area. Threshold current is 290 μA and a maximum wallplug efficiency of 27% is obtained at an output power of 1 mW.

Published in:

IEEE Photonics Technology Letters  (Volume:8 ,  Issue: 8 )