激光技术, 2018, 42 (2): 245, 网络出版: 2018-03-21   

多路半导体激光器驱动电路设计

Design of driving circuit of multi-channel semiconductor laser
梅剑春 1,*叶青 2,3田建国 2,3
作者单位
1 南开大学 现代应用技术研究院,天津 300071
2 南开大学 物理科学学院,天津 300071
3 南开大学 弱光非线性光子学教育部重点实验室,天津 300071
摘要
为了可切换多个半导体激光器,实现分时工作,并降低驱动电路的体积,采用多路选择开关和多路模拟开关,实现激光二极管和光敏二极管的切换,通过设置数模转换芯片不同工作点电压,实现了一种可以驱动多路不同型号激光二极管的电路。进行了理论分析和实验验证,取得了长时间稳定性测试数据。结果表明,电路恒流输出精度可达0.005%,驱动830nm激光二极管的输出功率不稳定度为0.048%,驱动1550nm激光二极管的输出功率不稳定度为0.046%,实现了光源的稳定输出。这一结果对实现小体积的多路半导体激光器驱动电路设计是有帮助的。
Abstract
In order to switch multiple semiconductor lasers, realize time-sharing work, and reduce the volume of driving circuit, multi-channel selection switch and multi-channel analog switch was used to switch laser diode and photodiode. Different working voltages were set by digital to analog conversion chip. A circuit that can drive multiple different types of laser diodes was achieved. After theoretical analysis and experimental verification, stability test data with long time were obtained. The results indicate that, the output precision of constant current circuit can reach 0.005%, the instability of output power of laser diode with 830nm is 0.048%, and the instability of output power of laser diode with 1550nm is 0.046%. A stable light source is achieved. This result is helpful for the design of small volume drive circuit of multi channel semiconductor lasers.

梅剑春, 叶青, 田建国. 多路半导体激光器驱动电路设计[J]. 激光技术, 2018, 42(2): 245. MEI Jianchun, YE Qing, TIAN Jianguo. Design of driving circuit of multi-channel semiconductor laser[J]. Laser Technology, 2018, 42(2): 245.

本文已被 4 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

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!