| 干涉型光纤水听器相位载波调制及解调方案研究 |
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| 引用本文： | 曹家年,张立昆,李绪友,周华,穆海冰.干涉型光纤水听器相位载波调制及解调方案研究[J].光学学报,1999,19(11):1536-1540. |
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| 作者姓名： | 曹家年 张立昆 李绪友 周华 穆海冰 |
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| 作者单位： | 哈尔滨工程大学光纤技术研究所,哈尔滨150001 |
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| 摘 要： | 概述了直接调制光源产生相位载波的马赫－曾德尔（Ｍａｃｈ－Ｚｅｈｎｄｅｒ）干涉型光纤水听器调制解调技术。重点在于通过严密的数学推导， 定量分析了直接调制光源伴生的调幅现象对于解调过程和结果的影响， 并有针对性地提出了解决办法。同时就采用直接调制光源的相位载波零差检测方案时， 设计中如何合理选择各相关参数， 以达到最佳匹配进行了原理性探讨。给出了有关实验结果， 这些理论分析和实验结果对于全光纤化水听器阵列的研究及检测系统的设计具有十分重要的意义。
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| 关 键 词： | 干涉型光纤水听器 相位载波零差检测技术 直接调制半导体光源 伴生调幅 |
| 收稿时间： | 1998/4/7 |
Phase Modulation and Demodulation of Interferometric Fiber-Optic Hydrophone Using Phase-Generated-Carrier Techniques |
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| Cao Jianian,Zhang Likun,Li Xuyou,Zhou Hua,Mu Haibin.Phase Modulation and Demodulation of Interferometric Fiber-Optic Hydrophone Using Phase-Generated-Carrier Techniques[J].Acta Optica Sinica,1999,19(11):1536-1540. |
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| Authors: | Cao Jianian Zhang Likun Li Xuyou Zhou Hua Mu Haibin |
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| Abstract: | The phase modulation and demodulation of interferometric Mach Zehnder fiber optic hydrophone using phase generated carrier (PGC) techniques with direct source modulation are described. The additional influence of amplitude modulation in the course of phase modulation is analyzed through rigorous mathematical calculation, and the resolution is given accordingly. To select various parameters reasonably and match them well are discussed when taking this scheme. Some experimental results concerned are given. The theoretical analysis and the experimental results are important to the study of all fiber optic hydrophone arrays and the signal detection system design. |
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| Keywords: | interferometric fiber optic hydrophone phase-generated-carrier homodyne demodulation technique direct diode laser source modulation accompanying amplitude modulation |
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