Compact and efficient Nd:YVO 4 laser that generates a tunable single-frequency green output.
We demonstrate 250 mW of single-frequency 532-nm output from a simple intracavity-doubled Nd:YVO(4) laser, pumped with 1.2 W from a fiber-coupled diode laser. The laser can be frequency chirped smoothly over approximately 17 GHz while maintaining a single-frequency green output of greater than 200 mW. A short Fabry-Perot cavity is used, and single-frequency operation is enforced by means of a birefringent filter that utilizes the birefringence of both the KTP doubling crystal and the Nd:YVO(4) laser crystal with polarization-dependent loss from a glass Brewster plate combined with polarization-dependent gain from the laser crystal.
Friel
G J
GJ
School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, UK. g.j.friel@hw.ac.uk
Kemp
A J
AJ
Lake
T K
TK
Sinclair
B D
BD