摘要
对适用于干涉型光纤水声传感器阵列的PGC(相位载波)调制—解调单元光纤水声传感器进行了研究,分析得出了光纤水声传感器PGC检测新的带宽要求;采用半导体激光器光源及其光频率调制技术,研制成功了高灵敏度的PGC调制—解调单元光纤水声传感器,获得了稳定的水声信号,并在国家水声一级计量站完成了测试。
This paper presents the research on the interferometric fiber-optic sensor's PGC scheme which is suitable for the construction of the acoustic sensor array. The new bandwidth requirement of the scheme is analyzed, and high sensitivity fiber-optic acoustic sensor detected by PGC scheme is successfully developed with LD and its frequency modulating technique. The stabilized acoustic signal is obtained by the sensor in the state's first class acoustic measurement station.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1998年第5期411-414,共4页
Chinese Journal of Lasers
基金
国家自然科学基金资助项目(69702003)。
关键词
光纤
干涉仪
水声
信号检测
传感器
fiber , interferometer , acoustic, signal detect
