1043nm Semiconductor Disk Laser

A 1043nm semiconductor disk laser with a diamond heatspreader is presented. 880mW continuous-wave output power is produced using a 3% output coupler with the incident pump power of 5900mW. The slope-efficiency is 16.7% and the optical- to-optical conversion efficiency is 14.9%. The effect of the diamond heatspreader on the laser is also analyzed.