Nd:YVO4

Standard specifications
Nd: Dopant Level	0.1 - 3.0 atm%
Standard Dimensions	4x4x8mm,3x3x5mm3, 3x3x3 mm3, 3x3x1 mm3
Wavefront Distortion	< l/8 at 633 nm
Scattering Sites	invisible, probed with a He-Ne laser
Orientation	+/-0.5deg.
Dimensional Tolerance	-1
End-faces Configuration	Plano/Plano
Surface quality	10/5 Scratch/Dig per MIL-O-13830B
Flatness	l/10 at 633 nm
Clear Aperture	> Central 90%
Parallelism	< 10 arc sec.
Intrinsic Loss	< 0.1% cm-1
Other Specifications are available according to requirements. Application:   1. Diode Laser-Pumped Nd:YVO4 Lasers A threshold of 78 mW and a slope efficiency of 48.5% at 1.064 mm were obtained by using an a-cut 3 mm long Nd:YVO4 crystal with output coupler R = 96%. Under the same conditions, a 5 mm long Nd:YAG crystal has a threshold of 115 mW and a slope efficiency of 38.6%. Recently, over 30 W of TEM00 output power was achieved by using a-cut Nd:YVO4 and pumped by 60 W fiber coupled diode lasers. The optical conversion efficiency exceeds 50%. High power and stable infrared output @ 1064 nm and 1342 nm has been available with diode pumped Nd:YVO4 lasers. Single-longitudinal-mode oscillation of a Nd:YVO4 microchip laser has been achieved with high power and high slope efficiency. Such a single mode source has been developed for the use of a master oscillator for injection locking of Nd laser systems. Because of its large stimulated emission cross section at 1.34 mm, Nd:YVO4 is also an efficient laser crystal for diode laser-pumped 1.3 mm laser. By using 1 mm long Nd:YVO4 crystal and pumped by an 850 mW diode laser at 808 nm, 50 mW output at 1.34 mm has been observed, compared to 34 mW from 2 mm long Nd:YAG. 2. Frequency-doubled Nd:YVO4 Lasers By using the compact design of Nd:YVO4 + KTP crystals, high power green or red light output can be generated in a diode laser pumped Nd:YVO4 laser. When pumped by a 890 mW diode laser, more than 76 mW single mode (TEM00) green output was obtained with a 3x3x1 mm3 Nd:YVO4 and a 3x3x5 mm3 intracavity KTP. Diode pumped green lasers has been commercialized with the compact design of Nd:YVO4 + KTP crystals. 2.5 mW green output was achieved in a Nd:YVO4 microchip laser with a very short (9 mm) laser cavity when pumped by a 50 mW diode laser. Over 10 W and high stable CW green output @ 532 nm was commercially available with diode pumped Nd:YVO4 and frequency doubling with a NCPM LBO crystal. Single longitudinal mode (SLM) green output, Q-switched green and UV outputs were also obtained. Over 400 mW blue laser @ 457 nm based on Nd:YVO4+ BBO crystals is commerical available .