Nd:YVO4 is one of the most efficient laser host crystals for all-solid-state laser diode pumped lasers. Its large stimulated emission cross-section at lasing wavelength, high absorption coefficient and wide absorption bandwidth at pump wavelength, high laser induced damage threshold as well as good physical, optical and mechanical properties make it an excellent crystal for high power, stable and cost-effective diode pumped solid-state lasers.

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KTP has many favorable features that enable it to be widely used for frequency mixing for Red/Green/Blue output, and for OPO and OPA  for visible to mid-infrared tunable output. It is also used for many E-O devices such as optical waveguides, optical switches, directional couplers and E-O modulators.

Lense is best used where one conjugate point (object distance S or image distance S') is more than five times the other. This lens shape is near best-form for either focusing collimated light or for collimating a point source.