Broadband Third-Harmonic Generation with a Composite KD*P Crystal
HAN Wei1, ZHENG Wan-Guo1, YUAN Peng2, QIAN Lie-Jia2, WANG Fang1, YANG Yi-Sheng1, FENG Bin1, XIANG Yong1, LI Ke-Yu1, LI Fu-Quan1
1Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 6219002State Key Laboratory for Advanced Materials and Devices, Department of Optical Science and Engineering, Fudan University, Shanghai 200433
Broadband Third-Harmonic Generation with a Composite KD*P Crystal
HAN Wei1, ZHENG Wan-Guo1, YUAN Peng2, QIAN Lie-Jia2, WANG Fang1, YANG Yi-Sheng1, FENG Bin1, XIANG Yong1, LI Ke-Yu1, LI Fu-Quan1
1Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 6219002State Key Laboratory for Advanced Materials and Devices, Department of Optical Science and Engineering, Fudan University, Shanghai 200433
摘要We predict that broadband efficient third-harmonic generation (THG) can be achieved with a frequency-doubling crystal and a novel composite KD*P tripler. The composite KD*P tripler is made of two partially deuterated KDP crystals with different deuteration levels by using the thermal bonding technique. The deuteration level of a partially deuterated KDP crystal is used as a degree of freedom to alter the phase-matching (PM) wavelength. Simulations show that the composite KD*P tripler can improve third-harmonic conversion efficiencies over a very wide band of input fundamental frequencies. In terms of robustness, alignment and stability, this THG scheme should be more promising than other broadband THG approaches because the composite KD*P tripler is a monolithic device.
Abstract：We predict that broadband efficient third-harmonic generation (THG) can be achieved with a frequency-doubling crystal and a novel composite KD*P tripler. The composite KD*P tripler is made of two partially deuterated KDP crystals with different deuteration levels by using the thermal bonding technique. The deuteration level of a partially deuterated KDP crystal is used as a degree of freedom to alter the phase-matching (PM) wavelength. Simulations show that the composite KD*P tripler can improve third-harmonic conversion efficiencies over a very wide band of input fundamental frequencies. In terms of robustness, alignment and stability, this THG scheme should be more promising than other broadband THG approaches because the composite KD*P tripler is a monolithic device.
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2008, Vol. 25 
