Optical parametric oscillator

Quantum mechanics

Phase (matter)

Voltage

Materials science

Refractive index

Harmonics

Phase matching

Wavelength

Laser

Physics

Optics

Nonlinear optics

Dispersion (optics)

Second-harmonic generation

Applied Optics

KTP has been found to be phase matchable for type-2 second-harmonic generation of the third harmonics of the CO2 laser wavelengths at 9.2714 and 9.5525 microm at 20.0 degrees C. The resulting angle and temperature-tuning data combined with the literature values of the Nd:YAG laser-pumped optical parametric oscillator were used to improve the Sellmeier equations and the thermo-optic dispersion formula that reproduce well the temperature-tuned 90 degree phase-matching conditions of the flux-grown crystals. Applications to quasi phase matching are presented.

Sellmeier and thermo-optic dispersion formulas for KTP