Optisch gepumpter Verstaerker, insbesondere ein Festkoerper-Verstaerker
Date Issued
2002
Author(s)
Du, K.
Patent No
1996-19604425
Abstract
The apparatus includes a solid state laser with Nd:YAG crystal that has a square cross section (2) and which is located between two resonator mirrors (3). Located perpendicular to the resonator axis are a pair of diode lasers (5) with cylinder lenses (6) arranged so that only a part of the section is illuminated. The strip shaped amplification section (7) should have an aspect ratio of width to height greater than 1.8. Greater power can be obtained by a unit with multiple diode pairs and a longer resonator crystal. USE/ADVANTAGE - Optically pumped amplifier. Improved efficiency and quality. Degradation and thermal abberation is minimised by optimising overlapping of pumped volumes.