红外与激光工程, 2018, 47 (9): 0903002, 网络出版: 2018-10-06   

封装对超细型DFB光纤激光水听器性能的影响(特邀)

Effect of encapsulation on the performance of ultrafine DFB fiber laser hydrophone(invited)
张海岩 1,2,*李振 1,2赵晨 1,2王学锋 1,2
作者单位
1 北京航天控制仪器研究所, 北京 100094
2 北京市光纤传感系统工程技术研究中心, 北京 100094
摘要
对超细型DFB光纤激光水听器探头封装进行了研究。通过有限元方法建立了封装结构理论模型, 探讨了影响超细型光纤激光水听器频率响应与灵敏度起伏之间的因素, 在灵敏度、频响一致性等指标间找到了平衡点。最后, 制作了光纤激光水听器, 直径6 mm, 长度55 mm, 灵敏度-130 dB, 100 Hz~2 kHz灵敏度响应起伏4 dB, 通过测试验证了理论分析和仿真的符合性。
Abstract
The encapsulation of ultrafine DFB fiber laser hydrophone probe was studied. A theoretical model of encapsulation structure was built by finite element method. The factors affecting the frequency response and sensitivity fluctuation of ultrafine fiber laser hydrophone were discussed. A balance was found upon sensitivity, frequency response consistency and other indexes. Finally, a fiber laser hydrophone was made. Its diameter was 6 mm, length was 55 mm, sensitivity was -130 dB and sensitivity response fluctuation between 100 Hz -2 kHz was 4 dB. The conformity of theoretical analysis and simulation was verified by experimental test.

张海岩, 李振, 赵晨, 王学锋. 封装对超细型DFB光纤激光水听器性能的影响(特邀)[J]. 红外与激光工程, 2018, 47(9): 0903002. Zhang Haiyan, Li Zhen, Zhao Chen, Wang Xuefeng. Effect of encapsulation on the performance of ultrafine DFB fiber laser hydrophone(invited)[J]. Infrared and Laser Engineering, 2018, 47(9): 0903002.

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