Patent ID: 8204094
Filing Date: 2012-06-19
Classification: H01S

Abstract:
1. A laser comprising an end pump light source and a gain medium having a first end, a second end, and four sides comprising a first side, a second side, a third side, and a fourth side, wherein: the end pump light source is optically coupled to the first end and pumps the gain medium; the four sides are disposed between the first end and the second end such that the first side and the third side oppose each other and the second side and the fourth side oppose each other; the first side and the third side are tapered inwardly from the first end to the second end at a taper angle β relative to a longitudinal lasing axis and have a polished finish capable of reflecting light inside the gain medium; the second side and the fourth side are substantially parallel to the longitudinal lasing axis, are substantially perpendicular to the first end and the second end, and have a ground blasted finish; the first side is tilted inwardly at a slant angle α from the fourth side to the second side, the second side is substantially perpendicular to the third side, and the third side is substantially perpendicular to the fourth side; and a laser beam R