Fig. 1 Scheme for compact design of DPSS green laser
Neodymium Doped Yttrium Vanadate (Nd:YVO4) |
| Introduction | Main Properties | Main Applications | Fabrication Specs. | Notes |
|
Comparing with Nd:YAG, Nd:YVO4 has higher absorption coefficient at pumping wavelengths, it means that Nd:YVO4 with shorter lengths (such as 1mm) can be constructed more compact lasers. The stimulated emission cross-section at 1.064 mm of A-cut Nd:YVO4 is about 4 times that of the Nd:YAG. Moreover, when the laser cavity is properly designed, the slope efficiency of Nd:YVO4 can be very high because of its high pump quantum efficiency (hp). Furthermore, the wider absorption bandwidth (801-820 nm) permits a less sensitivity of diode laser selection, and pump wavelength drift due to the variations of temperature or aging of diode. These features guarantee Nd:YVO4 as one kind of laser host which is most suitable to construct more compact and significantly more efficient diode-pumped solid-state (DPSS) lasers. Over 350 mW 1.064 m m output was obtained while a 1 mm length, A-cut Nd:YVO4 was pumped by one 1 W diode laser. In compact cavity design of Nd:YVO4+KTP, high power green
output can be generated in a diode-pumped Nd:YVO4 laser. When pumped by 1 W
diode laser, more than 150 mW TEM00 532 nm output was reached with a 3x3x1 mm3
Nd:YVO4 and a 3x3x5 mm3 intracavity KTP. Fig. 1 shows the
scheme for compact design of diode-pumped green laser (Nd:YVO4 + KTP). |
|
Fig. 1 Scheme for compact design of DPSS green laser |
|
|
|
|
|
