Absolute distance measurement method without a non-measurable range and directional ambiguity based on the spectral-domain interferometer using the optical comb of the femtosecond pulse laser
Absolute distance measurement method without a non-measurable range and directional ambiguity based on the spectral-domain interferometer using the optical comb of the femtosecond pulse laser
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DOI：
10.1063/1.4971836
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发表时间：
2016-12
影响因子：
4
通讯作者：
Jaesung Park;J. Jin;Jong Ahn Kim;Jae Wan Kim
中科院分区：
文献类型：
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作者：
Jaesung Park;J. Jin;Jong Ahn Kim;Jae Wan Kim
利用飞秒脉冲激光的光梳，利用谱域干涉仪测量绝对距离。即使该技术可以以高速度和高精度测量距离，它也有两个基本问题：不可测量的距离和方向模糊。首先，不可测量的范围由于在非常短的距离或双非模糊范围的整数倍的干扰光谱的采样限制而出现。第二，在傅立叶域中对应于所需距离的峰值由于光梳的重复特性而具有方向模糊性。因此，由于这两个基本问题，大多数先前的工作从未在单个操作中单独测量绝对距离。在这封信中，干涉测量方法的基础上，光谱域干涉仪工作与两个参考镜的任意绝对距离的建议和证明。两个参考镜产生两个D…
With the help of the optical comb of a femtosecond pulse laser, a spectral-domain interferometer has been utilized for measuring absolute distances. Even if the technique can measure distances at a high speed and with good precision, it has two fundamental problems: non-measurable range and directional ambiguity. First, the non-measurable range arises due to the sampling limit of the interference spectra at very short distances or the integer multiple of a double non-ambiguity range. Second, the peak corresponding to the desired distance in the Fourier domain has a directional ambiguity owing to the repeated property of the optical comb. Therefore, due to these two fundamental problems, most previous works never measure the absolute distances by itself in a single operation. In this letter, an interferometric method for measuring arbitrary absolute distances based on a spectral-domain interferometer operating with two reference mirrors is proposed and demonstrated. The two reference mirrors generate two d...