Projects per year
Low-birefringence (Δn<2x10−6), low-loss (absorption coefficient <0.006cm−1 at 1064nm), single-crystal, synthetic diamond has been exploited in a CW Raman laser. The diamond Raman laser was intracavity pumped within a Nd:YVO4 laser. At the Raman laser wavelength of 1240nm, CW output powers of 1.6W and a slope efficiency with respect to the absorbed diode-laser pump power (at 808nm) of ~18% were measured. In quasi-CW operation, maximum on-time output powers of 2.8W (slope efficiency ~24%) were observed, resulting in an absorbed diode-laser pump power to the Raman laser output power conversion efficiency of 13%.
- laser optics
- optical materials
Lubeigt, W., Savitski, V. G., Bonner, G. M., Geoghegan, S. L., Friel, I., Hastie, J. E., ... Kemp, A. J. (2011). 1.6 W continuous-wave Raman laser using low-loss synthetic diamond. Optics Express, 19(7), 6938-6944. https://doi.org/10.1364/OE.19.006938