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对连续激光二极管抽运Nd∶YVO4/Cr4+∶YAG被动调Q微晶片激光器输出激光重复频率的稳定性进行了理论和实验研究.结果表明,谐振腔内存在最佳净增益,可以使激光器工作在稳定区.通过优化腔内的净增益,耦合输出镜反射率为85%,饱和吸收体初始透射率为70%,抽运功率从1.05 W到1.20 W的情况下,激光器工作在稳定区.当抽运功率为1.16 W时,获得了重复频率为19.48 kHz,稳定性优于0.68%(RMS)的高重复频率激光输出.进一步分析了抽运功率抖动对输出激光重复频率稳定性的影响.结果表明,激光器进入稳定区之后,抽运功率的抖动是制约输出激光重复频率稳定性进一步提高的最主要因素.针对抽运功率抖动带来的影响,讨论了增益预抽运技术,并比较了其优缺点. 相似文献
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This study presents an eye-safe, single-mode, nanosecond-pulsed, and all-fiber laser source with master- oscillator-power-amplifier configuration at 1 550 nm that is suitable for high-resolution three-dimensional (3D) imaging light detection and ranging (LIDAR) system. The output peak power of 7.6 kW is obtained at the 1.2-ns pulse width and 50-kHz repetition rate. The single-mode pulse laser output ensures the range precision and imaging results of the LIDAR system. The laser is used as a transmitter for the 3D imaging LIDAR system. The detailed characteristics of the LIDAR system and the results of the 3D imaging are presented. 相似文献
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Cr^4+:YAG被动调Q微晶片激光器重复频率稳定性研究 总被引:1,自引:0,他引:1
对连续激光二极管抽运Nd:YVO4/Cr4 :YAG被动调Q微晶片激光器输出激光重复频率的稳定性进行了理论和实验研究结果表明,谐振腔内存在最佳净增益,可以使激光器工作在稳定区通过优化腔内的净增益,耦合输出镜反射率为85%,饱和吸收体初始透射率为70%,抽运功率从1.05 W到1.20 W的情况下,激光器工作在稳定区当抽运功率为1.16 W时,获得了重复频率为19.48 kHz,稳定性优于0.68%(RMS)的高重复频率激光输出进一步分析了抽运功率抖动对输出激光重复频率稳定性的影响结果表明,激光器进入稳定区之后,抽运功率的抖动是制约输出激光重复频率稳定性进一步提高的最主要因素针对抽运功率抖动带来的影响,讨论了增益预抽运技术,并比较了其优缺点. 相似文献
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We report a nanosecond-pulse amplification system based on an Yb-doped,100-μm core,rod-type photonic crystal fiber.Up to 10 W of average power with pulse energy of 1 mJ and peak power of 450 kW is obtained at the repetition rate of 10 kHz.The high-power nanosecond pulse has a good pulse shape and spectral characteristics.The usage of rod-type fibers provides a novel structure for nanosecond pulse amplification. 相似文献
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We present a novel high-energy, single-mode, all-fiber-based master-oscillator-power-amplifier (MOPA) laser system operating in the C-band with 3.3-ns pulses and a very widely tunable repetition rate, ranging from 30 kHz to 50 MHz. The laser with a maximum pulse energy of 25 μJ and a repetition rate of 30 kHz is obtained at a wavelength of 1548 nm by using a double-clad, single-mode, Er:Yb co-doped fiber power amolifier. 相似文献
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