What is explored?
Thermal load is killing high power NLO conversions
- The Phase-mismatching profile
- Saturation and deterioration of efficiency
- Distortion of beam shape and quality
- Fluctuation and non-repeatable operation
The multicrystal harmonic generator
- Angle detuning compensates for the thermally induced phase mismatch
- Two crystal harmonic generator compensates for the temperature gradient
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