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双频干涉型光纤激光加速度传感器的指向性特性

Directional characteristics of dual frequencyinterferometric fiber laser acceleration sensor

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摘要

矢量传感器可以共点、同步测量振速、加速度等矢量信息,且具有一定的 噪声抑制能力,具有重要的应用价值。 铒镱共掺双偏振光纤激光器可用于实现易解调、结构小巧、易于复用、高灵敏度的光纤传感器,且不需复 杂的解调方案。针对此类传感器,提出一种加速度传感器结构,通过限制质量块的横向位移,实现了一种 双频干涉型光纤激光加速度矢量传感器。除具有双偏振光纤激光器的一系列优点外,该传感器还具有良 好的“8”字形指向性,并在1 kHz以下具有平坦的频率响应特性,对后续双频干涉型光纤矢量传感器的研制具有重要的指导意义。

Abstract

Vector sensors show great value in various applications because they can synchronously measure vector information such as vibration velocity, acceleration and so on in a single place with a certain level of ability for noise suppression. Erbium/Ytterbium co-doped fiber lasers can be employed to implement miniature, multiplexing friendly and highly sensitive fiber sensors without the need for complicated demodulation schemes. For such kind of sensors, an accelerometer structure is proposed, which realizes a dual frequency interference based fiber grating laser vector sensor for acceleration through restrictions of the transversal movement of the mass in the structure. Besides those merits possessed by dual-polarization fiber lasers, it shows quite good directional characteristics in ′8′ shape with flat frequency response below 1 kHz, which presents an important reference for implementations of dual frequency interference based fiber vector sensors.

Newport宣传-MKS新实验室计划
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中图分类号:TN253

DOI:10.3969/j.issn.1007-5461. 2016.03.019

所属栏目:纤维与波导光学

基金项目:Supported by National Natural Science Foundation of China(国家自然科学基金, 61235005, 11474133)

收稿日期:2015-12-28

修改稿日期:2016-02-24

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作者单位    点击查看

赵泳强:暨南大学光子技术研究院, 广东 广州 510632
程凌浩:暨南大学光子技术研究院, 广东 广州 510632
周峰:暨南大学光子技术研究院, 广东 广州 510632
梁贻智:暨南大学光子技术研究院, 广东 广州 510632
金龙:暨南大学光子技术研究院, 广东 广州 510632
关柏鸥:暨南大学光子技术研究院, 广东 广州 510632

联系人作者:赵泳强(592494514@qq.com)

备注:赵泳强 (1989-), 四川人,研究生,从事光纤传感和光纤通信研究。

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引用该论文

ZHAO Yongqiang,CHENG Linghao,ZHOU Feng,LIANGYizhi,JIN Long,GUAN Bai′ou. Directional characteristics of dual frequencyinterferometric fiber laser acceleration sensor[J]. Chinese Journal of Quantum Electronics, 2016, 33(3): 372-377

赵泳强,程凌浩,周峰,梁贻智,金龙,关柏鸥. 双频干涉型光纤激光加速度传感器的指向性特性[J]. 量子电子学报, 2016, 33(3): 372-377

被引情况

【1】顾宏灿,黄俊斌,程玲,杨光,毛欣. 20~1 250 Hz光纤激光加速度传感系统设计. 中国光学, 2017, 10(4): 469-476

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