强激光与粒子束, 2017, 29 (12): 121001, 网络出版: 2017-12-25  

基于PSpice的半导体激光高频调制系统设计

Design of high frequency modulation system of semiconductor laser based on PSpice
作者单位
长春理工大学 高功率半导体激光国家重点实验室, 长春 130022
摘要
为了实现高频率的调制激光输出, 设计了一种驱动系统由信号放大、电流调制、过流保护和具有慢启动功能的直流偏置电路高度集成的半导体激光高频调制系统。此系统采用了结构简单的直接调制方式, 运用线性调频的高频信号去控制半导体激光器发射激光的强度, 从而实现高频调制。在运用OrCAD/PSpice对高频调制驱动系统进行模拟仿真的基础上, 最终研制出的半导体激光高频调制系统实现了频率为40.02 MHz、直流偏置为493.326 mA、正弦波调制电流峰峰值为850 mA的高频调制输出, 调制激光平均功率为300 mW。
Abstract
In order to output high frequency modulation, we designed a high frequency modulation system of semiconductor laser which is composed of a signal magnifying circuit, a current modulation circuit, an over current protection circuit and a DC bias circuit with slow start function. The high frequency modulation drive system of semiconductor laser uses a simple structure of the direct modulation method. The direct modulation method controls intensity of semiconductor laser by a signal of adjustable frequency. We simulated the high frequency modulation drive system of semiconductor laser by OrCAD/Pspice. The high frequency modulation system of the semiconductor laser can output laser with frequency of 40.02 MHz and average laser power of 300 mW, and it can output modulation current with DC bias of 493.326 mA and peak value of sine wave modulation of 850 mA.

王卫鹏, 徐英添, 邹永刚, 徐莉, 张贺, 金亮, 李洋, 赵鑫, 马晓辉. 基于PSpice的半导体激光高频调制系统设计[J]. 强激光与粒子束, 2017, 29(12): 121001. Wang Weipeng, Xu Yingtian, Zou Yonggang, Xu Li, Zhang He, Jin Liang, Li Yang, Zhao Xin, Ma Xiaohui. Design of high frequency modulation system of semiconductor laser based on PSpice[J]. High Power Laser and Particle Beams, 2017, 29(12): 121001.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!