Patent ID: 6115402
Filing Date: 2000-09-05
Classification: G02F,H01S

Abstract:
A laser comprising:first and second mirrors forming a laser resonant cavity;a solid-state gain medium located in said resonant cavity, said gain medium contributing to thermal-lensing effects in said resonant cavity during operation thereof, said thermal-lensing effects varying with variations of one or more operating parameters of said resonant cavity;an optical component having positive optical power, said optical component being located in said resonant cavity at a fixed distance from said gain medium and being spaced apart from said first mirror to form a folded optical relay therewith, said folded optical relay having an input plane located in said resonant cavity between said optical component and said gain medium; andwherein location of said first mirror is variable for varying spacing between said optical component and said first mirror for compensating for said variations in thermal-lensing effects.