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12W high-brightness single-frequency DBR tapered diode laser

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10 Author(s)
Fiebig, C. ; Ferdinand-Braun- Inst. fur Hochstfrequenztechnik, Berlin ; Blume, G. ; Kaspari, C. ; Feise, D.
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A distributed Bragg reflector (DBR) tapered diode laser with a record optical output power of 12 W and a conversion efficiency of about 44% is presented. The device has a sixth-order surface grating and shows single longitudinal mode emission at 979 nm as well as a nearly diffraction limited beam. At 11.4 W the laser has a lateral beam propagation factor of M 2 1/ e 2=1.1 with 72% of the power in the central lobe.

Published in:

Electronics Letters  (Volume:44 ,  Issue: 21 )