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1.中国科学院长春光学精密机械与物理研究所 发光学及应用国家重点实验室,吉林 长春 130033
2.中国科学院大学 材料与光电研究中心,北京 100049
3.鹏城实验室,广东 深圳 518055
[ "李泽安(1996-),男,河北衡水人,硕士研究生,2018年于东南大学获得学士学位,主要从事激光雷达的研究。E-mail: 2477278117@qq.com" ]
[ "王玉冰(1989-),男,吉林长春人,博士,助理研究员,2017年于中国科学院半导体研究所获得博士学位,主要从事激光雷达的研究。E-mail: wangyubing@ciomp.ac.cn" ]
纸质出版日期:2021-04-01,
收稿日期:2020-12-10,
修回日期:2020-12-31,
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李泽安, 王玉冰, 秦莉, 等. RLC振荡的脉冲激光器驱动特性[J]. 发光学报, 2021,42(4):510-517.
Ze-an LI, Yu-bing WANG, Li QIN, et al. On the Characteristics of Pulsed Laser Driver Based on RLC Oscillation[J]. Chinese Journal of Luminescence, 2021,42(4):510-517.
李泽安, 王玉冰, 秦莉, 等. RLC振荡的脉冲激光器驱动特性[J]. 发光学报, 2021,42(4):510-517. DOI: 10.37188/CJL.20200378.
Ze-an LI, Yu-bing WANG, Li QIN, et al. On the Characteristics of Pulsed Laser Driver Based on RLC Oscillation[J]. Chinese Journal of Luminescence, 2021,42(4):510-517. DOI: 10.37188/CJL.20200378.
在飞行时间测距(TOF)的脉冲激光雷达(lidar)中,激光器驱动十分重要,其性能直接影响激光雷达系统的作用距离、信噪比和虚警率等指标,是激光雷达的关键组成部分。本文在目前常见的激光器驱动电路模型基础上进行创新,在储能电容的充电电路中引入适当电感,形成电阻电感电容(RLC)二阶微分振荡电路,可以大幅度提高脉冲激光器的驱动电压,从而提高驱动电流,驱动激光器产生大功率、窄脉宽的激光。经过理论计算、软件仿真和实验验证,引入适当的电感可以将脉冲激光器的驱动电流提高85%以上,输出功率提高114%以上。
The laser driver circuit is very important in time-of-flight lidar. Its performance directly affects many key system parameters such as detection range
signal-to-noise ratio and false alarm rate. This article innovatively introduces appropriate inductance in charging circuit
forming resistance
inductance and capacitance(RLC) second-order differential oscillation circuit
which can greatly increase the driving voltage of the pulse laser and thereby increasing the driving current that drives the laser to produce high-power
narrow-pulsewidth laser. Theoretical calculations
numerical simulations and experimental verification show that driving current of pulse laser can be increased for over 85%
and the output power is increased for over 114% as an appropriate inductor is introduced into the system.
激光雷达大功率窄脉宽微分振荡电路
lidarhigh powernarrow pulse widthdifferential oscillator circuit
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