| 光纤水听器调制激光光源的一种实现方法 |
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| 引用本文： | 潘平,陈良益,何俊华. 光纤水听器调制激光光源的一种实现方法[J]. 光电工程, 2005, 32(11): 33-35,58 |
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| 作者姓名： | 潘平 陈良益 何俊华 |
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| 作者单位： | 1. 中国科学院西安光学精密研究所水下室,陕西,西安,710068;中国科学院研究生院,北京,100039
2. 中国科学院西安光学精密研究所水下室,陕西,西安,710068 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 在干涉型光纤水听器的信号检测技术中,采用相位载波零差检测方式,直接调制激光光源,具有明显的优越性。提出了一种实现方法,通过产生高频正弦波,对激光光源(多量子阱分布反馈激光器),进行直接驱动调制。光源调制输出波形精确多样(正弦波、三角波(包括锯齿波)和方波),输出频率大范围(0～20MHz),连续可调。实验表明达到了水听器对光源的要求。此调制技术也可在光纤通信等其它领域得以应用。
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| 关 键 词： | 激光光源调制 光纤水听器 信号检测 |
| 文章编号： | 1003-501X（2005）11-0033-03 |
| 收稿时间： | 2004-12-01 |
| 修稿时间： | 2004-12-012005-04-08 |
Method for laser modulated by optical fiber hydrophone |
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| PAN Ping,CHEN Liang-yi,HE Jun-hua. Method for laser modulated by optical fiber hydrophone[J]. Opto-Electronic Engineering, 2005, 32(11): 33-35,58 |
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| Authors: | PAN Ping CHEN Liang-yi HE Jun-hua |
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| Abstract: | Based on PGC (Phase Generated Carrier) homodyne technique, it is advantageous that MQW-DFB(Multi-Quantum Well, Distributed Feedback)laser is modulated directly in the field of interference optical fiber hydrophone detecting. The principle and implementation of MQW-DFB laser modulated by high-frequency sine wave are presented. The output waveform of modulated laser is precious and various, such as sine wave, triangular wave and square wave, and output frequency can be adjusted continuously between 0 MHz and 20 MHz. The test indicates that this method can meet hydrophone detecting requirements of high frequency and tiny waveform distortion. |
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| Keywords: | Laser modulation Optical fiber hydrophone Signal detection |
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