LASER COMPONENTS is selling DPM modules (diode-pumped microchip), a combination of laser rod and frequency-doubling crystal, for several years. Here, 0.5 mm thick Nd:YVO4 crystals that function as laser rods are connected to 2 mm thick KTP doubling crystals. With such a compact structure, a frequency-doubled green laser beam of 532 nm can be very easily generated by pumping with an 808 nm laser diode.
The systems are available with various apertures in low power and high power versions. At 532 nm, the output power of low power designs can reach up to 10 mW and the output power of high power designs can exceed 60 mW.
In addition to the previously existing types with their standard doping of 3%, Nd:YVO4 with 4% are now also available. This results in a lower pumping threshold and, at the same pumping power, an increased output power.
New Laser Rod Material
DPM modules with Nd:GdVO4 laser rods were also developed. When compared to the Nd:YVO4 laser rods, the following differences can be observed:
- Higher conversion efficiency
- Improved temperature stability
- Greater output power
- Lower lasing threshold
- High absorption coefficients for the pump wavelength
- Large cross section for the stimulated laser emission
- Good thermal conductivity.
In the near future, Nd:GdVO4 could replace the much more common Nd:YVO4 in numerous applications.
Profit now from these new developments in the laser crystal market. We would gladly send you the current datasheet on our DPM modules and Nd:GdVO4. For a detailed consultation regarding these and our other diverse crystals and laser rods, our product specialists are available any time.
