蝶形半导体激光器恒流驱动设计与实现
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摘要
蝶形半导体激光器驱动电流的稳定性直接决定了其输出波长的稳定性,进而影响检测精度。为了满足气体浓度检测中对激光器输出波长稳定可调的要求,设计了数字与模拟电路混合的恒流驱动电路。以STC90C51为主控芯片数控模块完成扫描键盘、DA转换;模拟电路主要由负反馈运算放大、高精度CMOS管和反馈电阻构成,完成电压到电流的转换,输出至蝶形半导体激光器,实现蝶形半导体激光器恒流驱动。输出电流在0～300 mA范围内连续可调,输出驱动电流误差小于±0.003 mA,满足系统对恒流驱动±0.005 mA的误差精度要求。
The stability of the driving current directly determines the stability of the output wavelength,which in turn affects the accuracy of the detection. In order to meet the demand for detection accuracy and constant current output in gas concentration detection by the Cavity ring down spectroscopy(CRDS),a constant current drive circuit with digital and analog circuits was designed. STC90 C51 is used as the main control chip to complete the scanning keyboard,DA conversion. The analog circuit is mainly composed of negative feedback operation amplification,high-precision CMOS tube and feedback resistance to complete the voltage to current conversion,current output to the butterfly semiconductor laser,and realize the constant current drive of the butterfly semiconductor laser. The test results show that the drive current of the circuit is adjustable within the range of 0～300 mA,and the drive current error is less than ±0.003 mA,which meets the system′s error accuracy requirements for constant current drive of ±0.005 mA.
The stability of the driving current directly determines the stability of the output wavelength,which in turn affects the accuracy of the detection. In order to meet the demand for detection accuracy and constant current output in gas concentration detection by the Cavity ring down spectroscopy(CRDS),a constant current drive circuit with digital and analog circuits was designed. STC90 C51 is used as the main control chip to complete the scanning keyboard,DA conversion. The analog circuit is mainly composed of negative feedback operation amplification,high-precision CMOS tube and feedback resistance to complete the voltage to current conversion,current output to the butterfly semiconductor laser,and realize the constant current drive of the butterfly semiconductor laser. The test results show that the drive current of the circuit is adjustable within the range of 0～300 mA,and the drive current error is less than ±0.003 mA,which meets the system′s error accuracy requirements for constant current drive of ±0.005 mA.
引文
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[13] ZHANG Zhe.System design of beidou No.2 taming pressure controlled constant temperature crystal oscillator[D].Xi′an:Xi′an University of Technology,2014.(in Chinese)张哲.北斗二号驯服压控恒温晶振的系统设计[D].西安:西安理工大学,2014.
[14] SU Jianfeng,YIN Dongmei.Application of DAC 1220 in taming clock[J].Journal of Astronautic Metrology and Measurement,2013,33(1):39-42.(in Chinese)苏建峰,尹冬梅.数模转换器DAC1220在驯服时钟中的应用[J].宇航计测技术,2013,33(1):39-42.
[15] WU Yeshan.Two methods for evaluating uncertainty of measurement class a:bessel method and range method[J].Examination Test,2011,40(4):23-24.(in Chinese)巫业山.测量不确定度A类评定的两种方法:贝塞尔法和极差法[J].检验测试,2011,40(4):23-24.
[16] NI Yucai.Understanding and application of measurement uncertainty (Ⅱ):comparison between range method and bessel method[J].China Metrology,2004,(8):78-79.(in Chinese)倪育才.测量不确定度理解与应用(二):极差法和贝塞尔法之间的比较[J].中国计量,2004,(8):78-79.
[2] QIU Xuanbing,LI Ning,SUN Dongyuan,et al.Research on driving circuit for miniaturized high stable semiconductor laser[J].Laser & Infrared,2018,48(4):469-475.(in Chinese)邱选兵,李宁,孙冬远,等.小型化高稳定半导体激光驱动电路研究[J].激光与红外,2018,48(4):469-475.
[3] CHEN Yanchao,FENG Yongge,ZHANG Xianbing.Large current nanosecond pulse generating circuit ford riving semiconductor laser[J].Optics and Precision Engineering,2014,22(11):3145-3151.(in Chinese)陈彦超,冯永革,张献兵.用于半导体激光器的大电流纳秒级窄脉冲驱动电路[J].光学精密工程,2014,22(11):3145-3151.
[4] CHEN Yujie.Research and design on dynamic range laser-driving circuit in gas detecting system[D].Xi′an:Xi′an University of Technology,2018.(in Chinese)陈玉杰.气体检测系统中宽动态范围激光器驱动电路的研究[D].西安:西安理工大学,2018.
[5] WANG Donghao.Research on precise driving technology of 980nm pump laser[D].Harbin:Harbin Institute of Technology 2017.(in Chinese)王东昊.980nm泵浦激光器精密驱动技术研究[D].哈尔滨:哈尔滨工业大学,2017.
[6] WANG Kaidi,HONG Zhanyong,DAI Yunqi.Adjustable bias drive for DFB laser in QKD system[J].Laser & Infrared,2017,47(2):164-168.(in Chinese)王凯迪,洪占勇,代云启.QKD系统中DFB激光器的可调偏置驱动[J].激光与红外,2017,47(2):164-168.
[7] JIANG Jianguo,ZHAO Yu,LIU Songbin.Alaser drive current and temperature control system for TDLAS methane detection[J].Chongqing:Journal of Chongqin University.2018,41(2):53-60.(in Chinese)姜建国,赵宇,刘松斌.用于TDLAS甲烷检测的激光器电流驱动与温控系统[J].重庆:重庆大学学报,2018,41(2):53-60.
[8] WU Dong.Design the driving of tunable narrow linewidth semiconductor laser[D].Shenzhen:Shenzhen University,2017.(in Chinese)吴栋.可调谐窄线宽半导体激光器驱动设计[D].深圳:深圳大学,2017.
[9] YANG Shuaijun.Design of precise temperature controller and direct current driver for chaotic semiconductor laser[D].Taiyuan:Taiyuan University of Technology,2018.(in Chinese)杨帅军.面向混沌半导体激光器的高精度温控与直流驱动电路系统设计[D].太原:太原理工大学,2018.
[10] WANG Guoliang.The design of the semiconductor laser driver circuit[D].Tianjin:Tianjin Polytechnic University.2017.(in Chinese)王国梁.半导体激光器驱动电路设计[D].天津:天津工业大学,2017.
[11] KOBNG Qinnan.Design of semiconductor laser driving circuit based on STM32[D].Changchun:Jilin University.2016.(in Chinese)孔庆楠.基于STM32的半导体激光器驱动电路的设计[D].长春:吉林大学,2016.
[12] LUO Liang,HU Jiacheng,WANG Chanyuan.Design of driving power supply and temperature control circuit for high-precision semiconductor laser[J].Laser Technology,2017,41(2):200-204.(in Chinese)罗亮,胡佳成,王婵媛等.高精度半导体激光器驱动电源及温控电路设计[J].激光技术,2017,41(2):200-204.
[13] ZHANG Zhe.System design of beidou No.2 taming pressure controlled constant temperature crystal oscillator[D].Xi′an:Xi′an University of Technology,2014.(in Chinese)张哲.北斗二号驯服压控恒温晶振的系统设计[D].西安:西安理工大学,2014.
[14] SU Jianfeng,YIN Dongmei.Application of DAC 1220 in taming clock[J].Journal of Astronautic Metrology and Measurement,2013,33(1):39-42.(in Chinese)苏建峰,尹冬梅.数模转换器DAC1220在驯服时钟中的应用[J].宇航计测技术,2013,33(1):39-42.
[15] WU Yeshan.Two methods for evaluating uncertainty of measurement class a:bessel method and range method[J].Examination Test,2011,40(4):23-24.(in Chinese)巫业山.测量不确定度A类评定的两种方法:贝塞尔法和极差法[J].检验测试,2011,40(4):23-24.
[16] NI Yucai.Understanding and application of measurement uncertainty (Ⅱ):comparison between range method and bessel method[J].China Metrology,2004,(8):78-79.(in Chinese)倪育才.测量不确定度理解与应用(二):极差法和贝塞尔法之间的比较[J].中国计量,2004,(8):78-79.