RLC振荡的脉冲激光器驱动特性

李泽安; 王玉冰; 秦莉; 宁永强; 王立军

doi:10.37188/CJL.20200378

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RLC振荡的脉冲激光器驱动特性

器件制备及器件物理 | 更新时间：2021-04-23

- RLC振荡的脉冲激光器驱动特性
- On the Characteristics of Pulsed Laser Driver Based on RLC Oscillation
- 发光学报 2021年42卷第4期页码：510-517
- 作者机构：
  
  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
- 作者简介：
  
  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
- 基金信息：
  
  国家重点研发计划(2017YFB1104400);国家自然科学基金(61934003);吉林省科技发展计划(20200501007GX;20200501008GX)
- DOI：10.37188/CJL.20200378
  中图分类号： TN952;TN248.4
- 收稿：2020-12-10，
  
  修回：2020-12-31，
  
  纸质出版：2021-04-01
- 稿件说明：
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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.

摘要

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。

Abstract

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.

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references

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