- Mar 26, 2010
It's similar to how a multiline argon works. Though on on ML argons the cavity mirrors are just coated for a wide band and the lines that lase, lase, since it doesn't require another stage to get the final output. With DPSS, the cavity coatings have to be much more wavelength specific, since there are lines that could lase, that aren't wanted that would rob energy from the lines you do want. ND:YAG and ND:YVO4 are both capable of lasing on multiple wavelengths simultaneously.. However, to my knowledge, the non-linear crystals aren't capable of doubling multiple wavelengths at the same time though, at least as far as getting multiple visible wavelength outputs at once. Meaning you'll never see say 473nm and 532nm for example, coming from the same DPSS laser. At least not with current materials.