Crystal oscillators are loosely divided from the frequency they work at and whether they are fundamental oscillators—operate in the frequency marked around the can or at even multiples of that (overtone oscillators). We present a Nd:GdVO4 bulk crystal oscillator with >70 WTEM00 laser output depending on the orthogonal thermal payment https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html