分布反馈式光纤激光水听器拖曳线列阵实验研究

发布时间：2018-03-03 11:14

本文选题：DFB光纤激光　切入点：拖曳线列阵　出处：《光子学报》2017年04期 　论文类型：期刊论文

【摘要】：为了进一步增大光纤拖曳阵的探测距离,研制了缆径为16mm的32元分布反馈式光纤激光水听器拖曳线列阵.阵元在10~2 000Hz频率范围内的平均声压灵敏度为-142.7dB(re 1rad/μPa),波动幅度小于±2dB.基于声光调制器的时分、波分联合复用技术实现了32元光纤激光水听器的多路复用,各个阵元之间以及各个通道之间的串扰均小于-40dB,并完成了静态和动态拖曳湖上实验.实验结果表明,研制的32元分布反馈式光纤激光水听器拖曳线列阵无论是在静态,还是在6~16节的动态拖曳状态,都能对目标形成稳定的波束指向,与GPS轨迹记录完全一致,展现了分布反馈式光纤激光水听器拖曳线列阵在工程上的应用前景.
[Abstract]:In order to further increase the detection distance of fiber optic towing array, A 32-element distributed feedback fiber laser hydrophone towed linear array with a diameter of 16mm has been developed. The average sound pressure sensitivity of the array element in the frequency range of 102Hz is -142.7dBnr 1rad/ 渭 Paan, and the fluctuation amplitude is less than 卤2dB.Based on the time of acousto-optic modulator, The wavelength division multiplexing technique has realized the multiplexing of 32 element optical fiber laser hydrophone. The crosstalk between each array element and between each channel is less than -40 dB, and the static and dynamic towing experiments on the lake are completed. The experimental results show that the crosstalk between the array elements and the channel is less than -40 dB, and the experimental results show that, The 32 element distributed feedback fiber optic laser hydrophone towed linear array, whether in static state or in dynamic towing state in section 6 ~ 16, can form a stable beam direction to the target, which is consistent with the GPS track record. The application prospect of distributed feedback fiber laser hydrophone towed line array in engineering is presented.
【作者单位】：海军工程大学兵器工程系;
【基金】：“十二五”装备预先研究项目武器装备探索研究重大项目资助~~
【分类号】：TB565.1

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