|
Invented in the sixties of the last century, Nd:YAG has been and continue to be the most widely used laser crystal for solid-state crystal material. Its laser parameters are a good compromise between the strengths and weaknesses of its competition. Nd:YAG crystals are used in all types of solid-state lasers. Compared with others laser crystals, its fluorescence lifetime is twice more than Nd:YVO4 , and thermal conductivity is also better.
Grooved Nd:YAG
Compared with the common Nd:YAG laser rods, the grooved Nd:YAG laser rods has the following advantages.
- The quality of the beam has been improved
- Thermal effect has been reduced
- The efficiency of Grooved Rod has been improved by 10%-20%
Nd:Ce:YAG
Nd:Ce:YAG is an excellent laser material widely used for no-water cooling and miniature laser systems. In double doped Nd:Ce:YAG crystals Cerium are chosen as sensitizer for Nd3+ ions because of its strong absorption in UV spectral region at flash lamp pumping and efficient energy transfer to the Nd3+ excited state. As a result, thermal distortion in Nd: Ce:YAG is low and the output laser energy is greater than that in Nd:YAG at the same pumping. Therefore it is possible to realize high power lasers with good beam quality. Lasing wavelength at 1064 nm, laser damage threshold and thermal conductivity of the Nd: Ce:YAG crystals are the same as for Nd:YAG. It is the most ideal laser material for the air cooling lasers .It is suitable for different modes of operation (pulsed, Q-switched, mode locked) and high-average power lasers.
Diffusion Bonded Cr:YAG+Nd:YAG Rod
The diffusion bonded Cr:YAG+Nd:YAG Rod consists of one Nd:YAG crystal and one or two Cr:YAG absorber. They are combined by optical contact method and further bonded under high temperature. The diffusion bonded Cr:YAG+Nd:YAG Rod helps to decrease thermal lens effect considerably in high power solid state Laser.
Nd:YVO4
|
Nd:YVO4 crystal is one of the most efficient laser host crystal currently existing for diode laser pumped solid state 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 Nd:YVO4 an excellent crystal for high power, stable and cost effective diode pumped solid-state lasers.
Nd:GdVO4
Nd:GdVO4 is one of the most efficient laser host crystals currently existing for diode pumped configuration . Its large stimulated emission cross-section at lasing wavelength, high absorption coefficient and wide absorption bandwidth at pump wavelength, good thermal conductivity, high laser induced damage threshold as well as good physical, optical and mechanical properties make Nd:GdVO4 an excellent crystal for high power, stable and cost-effective diode pumped solid-state lasers.
|
|
|
