The U.S. Army Corps of Engineers is organized geographically into eight permanent divisions, one provisional division, one provisional district, and one research command reporting directly to the HQ. Within each division, there are several districts.
Laser Safety Glasses - Holmium Laser. 1  On this page you will find our range of Holmium laser safety glasses , Ruby laser safety glasses, Dye and Erbium Laser Safety Glasses. 2  Important: Australian laser safety standards AS/NZS 2211.3:2002 require L-Ratings to be clearly marked on the laser glasses.
Using a 25 W thulium fibre laser to pump a Q-switched Ho:YAG laser 15.3 W of average output power is achieved with an M2 of 1.3. The holmium laser is used to pump a ZGP OPO generating 7.2 W of average output power in the 3-5 Î¼m waveband with an M2 of 1.8.