| PID参数整定的半导体激光器温度控制 |
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| 引用本文： | 赵斌,李昊. PID参数整定的半导体激光器温度控制[J]. 沈阳工业大学学报, 2017, 39(4): 444-448. DOI: 10.7688/j.issn.1000-1646.2017.04.16 |
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| 作者姓名： | 赵斌 李昊 |
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| 作者单位： | 河南工学院 电气工程系, 河南 新乡 453003 |
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| 基金项目： | 河南省高等学校重点科研项目(16A413005) |
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| 摘 要： | 为了降低环境温度对近红外分布反馈式激光器(DFB)的输出光功率以及中心波长波动的影响,采用PID控制方案设计了一种DFB激光器温度控制系统.PID系统通过硬件电路调整比例(K_p)、积分(K_i)及微分(K_d)参数来寻求动态平衡建立时间和最大振荡幅度的最佳值.结果表明,该温度控制系统的控制精度为±0.05℃,温度控制范围为10~50℃.通过较长时间的监测,DFB激光器的温度始终处于稳定状态,输出的中心波长没有出现漂移,能够满足气体浓度高检测精度的要求.
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| 关 键 词： | 分布反馈式激光器 温度控制 电阻温度检测器 热电控制器 帕尔贴效应 PID系统 激射光谱 中心波长 |
Temperature control of semi-conductor laser with PID parameter tuning |
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| ZHAO Bin,LI Hao. Temperature control of semi-conductor laser with PID parameter tuning[J]. Journal of Shenyang University of Technology, 2017, 39(4): 444-448. DOI: 10.7688/j.issn.1000-1646.2017.04.16 |
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| Authors: | ZHAO Bin LI Hao |
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| Affiliation: | Department of Electrical Engineering, Henan Institute of Technology, Xinxiang 453003, China |
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| Abstract: | In order to reduce the effect of environment temperature on the output optical power and center wavelength of near-infrared distrubuted feedback(DFB)laser, a temperature control system of DFB laser was designed with the PID control scheme. The PID control system could obtain the optimium point between the dynamic balance setting time and maximium oscillation amplitude through adjusting the proportion(Kp), integration(Ki), differentiation(Kd)parameters with the hardware circuit. The results show that the control precision of temperature control sysytem is ±0.05 ℃, and the temperature control scope is from 10 ℃ to 50 ℃. After longer term supervision, the temperature of DFB laser maintains a very stable status, and the output center wavelength has no drift, which can satisfy the requirements of high detection accuracy for the gas concentration. |
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| Keywords: | distributed feedback(DFB)laser temperature control resistor temperature detector thermal electrical controller Peltier effect PID system emitting spectrum center wavelength |
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