Patent ID: 6973108
Filing Date: 2005-12-06
Classification: H01S

Abstract:
1. An arrangement for pumping an anisotropic laser crystal comprising: a pump radiation source for generating a pump beam with an asymmetrical cross section having a smaller dimension in a first direction and a larger dimension in a second direction, said first and second directions being perpendicular to one another; said anisotropic laser crystal having a first and a second crystallographic axis perpendicular to one another, each axis having a different crystal breaking limit and a different thermal coefficient of expansion; wherein in the direction of the first crystallographic axis said anisotropic laser crystal has a greater crystal breaking limit in comparison to the second crystallographic axis of said anisotropic laser crystal with a smaller crystal breaking limit and which second crystallographic axis of said anisotropic laser crystal has a smaller thermal coefficient of expansion than the first crystallographic axis of said anisotropic laser crystal; wherein said anisotropic laser crystal is oriented with said first crystallographic axis in the first direction of the smaller dimension of the pump beam asymmetrical cross section.