Stable polarization short pulse passively Q-switched monolithic microchip laser with [110] cut Cr4+:YAG
Stable polarization short pulse passively Q-switched monolithic microchip laser with [110] cut Cr4+:YAG
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DOI：
10.1002/lapl.200910079
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发表时间：
2009-08
影响因子：
1.7
通讯作者：
Yuxi Wang;Minglun Gong;P. Yan;Lianfen Huang;Diao Li
中科院分区：
文献类型：
--
作者：
Yuxi Wang;Minglun Gong;P. Yan;Lianfen Huang;Diao Li
提出了一种具有 [110] 切割 Cr4+:YAG 的单片 Nd:YAG 微芯片激光器。输出光束为线偏振，偏振比高于100:1。偏振方向稳定，与泵浦功率、晶体温度、LD温度无关。在单纵模操作中，输出稳定的 259 ps 脉冲，频率为 2.5 kHz，峰值功率为 82 kW，衍射受限光束模式。通过简单紧凑的单通 Nd:YVO4 放大器，可实现 144 kW 峰值功率。通过放大级后仍保持单纵模和基横模。通过增加泵浦功率，微芯片激光器可以在两种纵向模式下工作，并具有两组输出脉冲。
A monolithic Nd:YAG microchip laser with [110] cut Cr4+:YAG is presented. The output beam is linearly polarized with polarization ratio higher than 100:1. The polarization direction is stable, independent of pump power, crystal temperature, LD temperature. In single longitudinal mode operation, stable 259 ps pulses at 2.5 kHz with 82 kW peak power and diffraction limited beam mode are output. With a simple and compact one-pass Nd:YVO4 amplifier, 144 kW peak power is achieved. Single longitudinal and fundamental transverse mode is kept after passing through the amplifier stage. The microchip laser can be operated in two longitudinal modes with two sets of output pulses by increasing the pump power.