Resonator inside perimeter wave number conversion of laser radiation

摘要

Being the frequency conversion equipped laser device, it has the dual optical resonator which includes two resonator parts which the power inside the circulating resonator of the level where two differs possess inside the aforementioned resonator part of the one whose one non-linear crystal (30) circulating power is large at least, active medium (21) it is placed inside the aforementioned resonator part of the one whose circulating power is small, power increase is achieved at 2 stages, it is the product of the growth factor entire increase in each stage, the aforementioned laser device is while non-linear crystallizing inside the resonator and from condition and the laser for the big increase of the laser power which operates mutuallyIn order for both of the condition for largest power output to be satisfied simultaneously, the laser device which features that it brings further degree of freedom in designing, in the aforementioned dual optical resonator, the 1st resonator part power increase of 1st stage bringing and at least in regard to laser radiation fundamental the high reflected characteristic laser resonator rear mirror (20) with, activity (profit) it has medium.