Beam Combining for Three High-Power Laser-Diode Stacks with a Stripe Mirror Technique
Abstract
We describe a beam-combining technique for three high-power laser-diode stacks to effectively increase the power density. Employing this beam-combining technique using two slit-stripe mirrors, the power density increased to 722 W/cm2 from a raw power density of 291 W/cm2 by combining the beams of three high-power laser-diode stacks. We also achieved a focused power density of 250 kW/cm2 by focusing the combined beam of the three high-power laser-diode stacks with a lens of 40-mm focal length.
- Publication:
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Japanese Journal of Applied Physics
- Pub Date:
- August 2004
- Bibcode:
- 2004JaJAP..43.1097G