Fig. 1. Layout of Second harmonic generation with quadrature type II KDP

Fig. 2. Layout of third harmonic generation with double type II KDP

Fig. 3. Layout of type II KDP doubler with angular spectrum dispersion by grating

Fig. 4. Layout of type I KDP doubler with angular spectrum dispersion by cylindrical lens

Fig. 5. Phase-matching curve for frequency tripling of pulses near 1057 nm in a KDP crystal type II cut at angle 59.07°

Fig. 6. Conception of adiabatic processes in frequency conversion

Fig. 7. Insensitive wavelength vs the deuterium ration in room temperature

Fig. 8. Characteristics of doubling conversion efficiency with wavelength in partial deuterium DKDP

Fig. 9. Numerical simulation process of super luminescent diode（SLD）light pulse

Fig. 10. Numerical simulation doubling characteristics of SLD pulse

Fig. 11. Statistical distribution of intensity fluctuation in temporal and frequency domain with doubling process

Fig. 12. Experimental setup

Fig. 13. Results of experiment

Fig. 14. Conversion efficiency with large aperture 17% deuterium DKDP

Fig. 15. comparisons of near field of FW&SH for 17% deuterium DKDP.

Fig. 16. Conception of third harmonics generation with gradient deuterium DKDP and sum frequency of broadband & narrow bandwidth

Fig. 17. Conversion efficiency vs the wavelength in gradient deuterium