As in a conventional laser cavity, the idea is that losses can be ... rather than optically, pump such devices. The other task for future research is finding convenient ways to modulate such ...

But to make things even clearer, you might want to take a step inside the laser with something like [Les Wright]’s open-cavity He-Ne laser. In most gas lasers, the stimulated emission action ...

It was placed inside a 36-pass pump cavity as a folding mirror and pumped by a fiber-coupled diode laser at 940 nm. The resulting pump beam size on the disk was 2.5 mm in diameter. A set of ...