【摘要】 通过选用低掺杂浓度的Nd:YAG晶体棒、热近非稳腔优化设计、双棒串接热致双折射补偿技术以及双Q开关正交放置结构,在LD抽运功率1116W时,实现调Q准连续全固态Nd:YAG激光器1064nm输出,平均功率达258W,光束质量M2~15·5,重复频率为10kHz,脉冲宽度为64ns,峰值功率达0·4GW,光光转换效率达23·1%.更多还原

【Abstract】 A high-average-power and high-beam-quality diode-side-pumped solid-state Q-switched laser was developed by use of low concentration Nd:YAG crystals with thermally near-unstable resonator design and two-rod birefringence compensation technology. Two orthogonal acousto-optic Q-switches were used to sustain fully holding of the pump gain. The 1064 nm quasi-continuous-wave average output power of 258 W at pump power of 1116 W was achieved with the beam quality factor M~2～15.5 at a repetition rate of 10 kHz and a pulse width of 64 ns, corresponding to a peek power of 0.4GW and an optical-to-optical conversion efficiency of 23.1%.更多还原