Ray Lannigan writes- > Does anyone have experience using white light optics with an Innova > 90 Krypton laser? I am interested in knowing how the power output and > beam quality using the white light optics compares with using other > special optics which have a narrower reflection bandwidth. We presently > have a set of optics for 676 and 647NM and another set for the UV lines. > We want to use the 568NM line, however this requires another set of > optics. Any help is appreciated. Since most lines in krypton are fairly low gain, both the white light and the narrower band mirrors must have very high reflectivity, so power output at any given visible line should be pretty much the same with either. Years ago, before I swore off water-cooled lasers, I used white light optics to get lines from 468 to 676 out of my krypton laser and only switched for UV or violet. Of course, when you don't use the Littrow prism to select a single wavelength, there is competition among lines, and power output isn't stable, but I assume you intend to use the prism to operate only at 568 nm. -Howard
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