Lailin Ji, Xiaohui Zhao, Dong Liu, Lan Xia, Yanqi Gao, Yong Cui, Daxing Rao, Wei Feng, Jiani Liu, Xiaoli Li, Jia Liu, Haitao Shi, Tao Wang, Pengyuan Du, Tianxiong Zhang, Zhan Sui, Weixin Ma, Jian Zhu. Research progress of low-temporal-coherence light frequency conversion technology for high power Nd:glass laser system[J]. High Power Laser and Particle Beams, 2020, 32(11): 112009

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- High Power Laser and Particle Beams
- Vol. 32, Issue 11, 112009 (2020)

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 v s 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
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Table 1.
Comparison of conversion bandwidth with partial deuterium KDP
晶体的转换带宽比较(I~3 GW/cm2,l=20 mm)
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Table 2.
Value of parameters in equation(3)
方程(3)中各物理量数值

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