Crystal oscillators are loosely divided through the frequency they work at and whether or not they are essential oscillators—get the job done for the frequency marked about the can or at even multiples of that (overtone oscillators). We existing a Nd:GdVO4 bulk crystal oscillator with >70 WTEM00 laser output depending https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html