Patent ID: 8565276
Filing Date: 2013-10-22
Classification: H01S

Abstract:
1. A method for making a high power laser source of more than one W, said laser source including a bar of laser diodes having a light-emitting active semiconductor region, a cooling element and a submount between said laser bar and said cooling element, said laser bar having a first coefficient of thermal expansion (CTE said submount having a second coefficient of thermal expansion (CTE said cooling element having a third coefficient of thermal expansion (CTE a submount/cooler assembly consisting of said submount and said cooling element, said submount/cooler assembly having an effective fourth coefficient of expansion (CTE wherein selecting said fourth coefficient (CTE hard soldering said bar of laser diodes to said submount and hard soldering said submount to said cooling element, thereby stressing said laser bar's active region to effect a deformation of its semiconductor crystal lattice.