激光雷达用高性能光纤激光器

发布时间：2018-03-04 16:38

本文选题：光纤激光器　切入点：单频　出处：《红外与激光工程》2017年08期 　论文类型：期刊论文

【摘要】：系统研究了窄线宽低噪声单频连续光纤激光器、高能量纳秒长脉冲单频光纤激光器以及高峰值功率纳秒短脉冲光纤激光器三类高性能光纤激光器:实现了工作于1、1.5及2μm波段的单频连续光纤激光器,典型光谱线宽小于3 k Hz,强度噪声接近于散粒噪声极限;实现了高能量单频光纤激光器,脉冲能量超过200μJ,重复频率20 k Hz,脉冲宽度100~500 ns,激光波长位于1.5μm波段;实现了高峰值功率纳秒短脉冲光纤激光器,峰值功率超过700 k W,重复频率10 k Hz,脉冲宽度3 ns;同时还实现了高重频高峰值功率纳秒短脉冲光纤激光器,峰值功率超过200 W,重复频率3 MHz,脉冲宽度1~5 ns。文中阐述了以上几类高性能光纤激光器在激光雷达探测系统中的应用前景。
[Abstract]:The narrow linewidth low noise single frequency CW fiber laser is studied systematically. High energy nanosecond long pulse monofrequency fiber laser and high peak power nanosecond short pulse fiber laser are three kinds of high performance fiber lasers. The typical spectral linewidth is less than 3 kHz, the intensity noise is close to the shot noise limit, the high energy single-frequency fiber laser is realized, the pulse energy is more than 200 渭 J, the repetition rate is 20 kHz, the pulse width is 100 ~ 500 nm, and the laser wavelength is at 1.5 渭 m band. The high peak power nanosecond short pulse fiber laser is realized, the peak power is more than 700 kW, the repetition rate is 10 kHz, the pulse width is 3 ns, and the high repetition rate high peak power nanosecond short pulse fiber laser is also realized. The peak power is over 200 W, the repetition rate is 3 MHz, and the pulse width is 1 ~ 5 nm. The application prospect of these kinds of high performance fiber laser in lidar detection system is described in this paper.
【作者单位】：天津大学精密仪器与光电子工程学院;天津市现代激光与光学研究院;山东海富光子科技股份有限公司;
【基金】：863计划(2014AA041901) 山东省自然科学基金(ZR2014FP015)
【分类号】：TN248.1;TN958.98

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