85 W VECSEL output at 1270 nm with conversion efficiency of 59 %

We report on 1270 nm vertical-external-cavity surface-emitting lasers (VECSELs) with up to 59% conversion efficiency and maximum output power of 8.5 W (pump limited), at 5 degrees C heat sink temperature. These VECSELs comprised wafer-fused gain mirrors in the flip-chip (thin-disk) heat dissipation scheme. The reflected pump light from the gain mirror surface was found to depend considerably on temperature and pump power. (C) 2015 Optical Society of America


Published in:
Optics Express, 23, 13, 17437
Year:
2015
Publisher:
Washington, Optical Society of America
ISSN:
1094-4087
Laboratories:




 Record created 2015-09-24, last modified 2018-03-17


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