| 光纤传感器用半导体激光器光频调制驱动电源 |
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| 引用本文： | 王代华,黄海. 光纤传感器用半导体激光器光频调制驱动电源[J]. 激光杂志, 2011, 0(1): 32-34 |
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| 作者姓名： | 王代华 黄海 |
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| 作者单位： | 重庆大学光电技术及系统教育部重点实验室;重庆大学光电工程学院精密与智能实验室; |
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| 基金项目： | 重庆市科委自然科学重点基金计划资助项目(批准号:CSTC,2009BA5072); 高等学校科技创新工程重大项目培育资金项目(批准号:706048) |
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| 摘 要： | 为了实现基于光频调制相位生成载波解调的干涉型光纤传感系统,需要对激光光源的频率进行调制.首先,文章根据直接电流调制原理设计井开发了一种半导体激光器光频调制驱动电源,主要由精密蕈准电压源、内部信号发生器,加法器、恒流源(电压电流转换、电流放大和电压负反馈)、慢启动电路、纹波抑制电路和过流保护电路等基本单元组成.接着,建立...
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| 关 键 词： | 光频调制 直接电流调制 驱动电源 半导体激光器 相位生成载波 |
Electrical driving source for semiconductor lasers for optic fiber sensors based on direct frequency modulation principle |
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| WANG Dai - hua,HUANG Hai. Electrical driving source for semiconductor lasers for optic fiber sensors based on direct frequency modulation principle[J]. Laser Journal, 2011, 0(1): 32-34 |
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| Authors: | WANG Dai - hua HUANG Hai |
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| Affiliation: | WANG Dai - hua,HUANG Hai (1.Key Laboratory of Optoelectronic Technology and Systems of the Ministry of Education of China,Chongqing University,Chongqing 400044,China,2.Precisiotn and Intelligence Laboratory,Department of Optoelectronic Engineering,China) |
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| Abstract: | In order to realize interferometric optical fiber sensing systems based on the phase generated carrier(PGC) demodulation technology,the optical frequency of the semiconductor laser should be modulated.First,according to the principle of the direct frequency modulation,a electrical driving source for semiconductor lasers,which is principally composed of a precision voltage reference,modulation signal generator,adder,constant - current source(voltage - to -current conversion circuit,current amplification circ... |
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| Keywords: | Optical frequency modulation direct frequency modulation electrical driving source semiconductor laser phase generated carrier |
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