半导体致冷器对SLD光源内部电场的影响
发布时间：2018-09-12 11:08
【摘要】：针对超辐射发光二极管(Super Luminescent Diode,SLD)光源输出光功率稳定性的需求,从光源的温控电路出发,建立了SLD恒流回路与半导体致冷器(TEC)之间的电场耦合模型,探讨了SLD光源的重要组件——TEC对其内部电场的影响;分析了光源内部不同组件间的分布电容。研究结果表明:温控电路产生的交流分量作用于光源内部半导体致冷器,产生时变电场,经分布电容耦合到恒流回路中,影响输出光功率的稳定性;SLD光源外壳接地良好,可减小分布电容,从而减小电场耦合对输出光功率的影响。
[Abstract]:According to the requirement of the stability of output power of superluminescent diode (Super Luminescent Diode,SLD) light source, the electric field coupling model between the SLD constant current circuit and the semiconductor cooler (TEC) is established from the temperature control circuit of the light source. The influence of the important component of the SLD light source on the internal electric field is discussed, and the distributed capacitance between the different components of the light source is analyzed. The results show that the AC component produced by the temperature control circuit acts on the semiconductor cooler inside the light source and produces a time-varying electric field. The stability of the SLD light source shell which affects the output optical power is well grounded because the distributed capacitance is coupled to the constant current circuit. The distributed capacitance can be reduced and the effect of electric field coupling on the output optical power can be reduced.
【作者单位】： 长沙理工大学物理与电子科学学院;
【分类号】：TN312.8
[Abstract]:According to the requirement of the stability of output power of superluminescent diode (Super Luminescent Diode,SLD) light source, the electric field coupling model between the SLD constant current circuit and the semiconductor cooler (TEC) is established from the temperature control circuit of the light source. The influence of the important component of the SLD light source on the internal electric field is discussed, and the distributed capacitance between the different components of the light source is analyzed. The results show that the AC component produced by the temperature control circuit acts on the semiconductor cooler inside the light source and produces a time-varying electric field. The stability of the SLD light source shell which affects the output optical power is well grounded because the distributed capacitance is coupled to the constant current circuit. The distributed capacitance can be reduced and the effect of electric field coupling on the output optical power can be reduced.
【作者单位】： 长沙理工大学物理与电子科学学院;
【分类号】：TN312.8
【相似文献】
相关期刊论文 前8条
1 马东阁;石家纬;刘明大;高鼎三;;超辐射发光二极管(SLD)[J];半导体情报;1993年06期
2 李岚,傅丽伟,张纳,陶怡,李光e，
本文编号：2238813
本文链接：https://www.wllwen.com/kejilunwen/dianzigongchenglunwen/2238813.html
