Highly stabilized optical frequency comb interferometer with a long fiber-based reference path towards arbitrary distance measurement
Highly stabilized optical frequency comb interferometer with a long fiber-based reference path towards arbitrary distance measurement
复制标题
DOI：
10.1364/oe.23.025979
复制
发表时间：
2015-10-05
期刊：
影响因子：
3.8
通讯作者：
Minoshima, Kaoru
中科院分区：
文献类型：
--
作者：
Nakajima, Yoshiaki;Minoshima, Kaoru
研制了一种基于342 m光纤参考光路的光频梳干涉仪。基于长光纤的参考路径通过使用光纤噪声消除技术被稳定到10-12阶稳定度，并且通过测量干涉相位信号来检测毫开尔文阶上的小温度变化。测量和参考路径之间的30和61的脉冲数差被精确地确定，与53.4 MHz的重复频率的轻微调谐。此外，在脉冲数差为61的情况下，仅通过1 MHz的重复频率调谐就可以对相对脉冲位置进行6.4m宽的扫描，这使得脉冲重叠任意距离。通过使用高稳定性的长光纤基准光路，这种大范围、高精度的延迟长度扫描可用于任意距离的测量。（C）2015年美国光学学会
An optical frequency comb interferometer with a 342-m-long fiber-based optical reference path was developed. The long fiber-based reference path was stabilized to 10-12-order stability by using a fiber noise cancellation technique, and small temperature changes on the millikelvin order were detected by measuring an interferometric phase signal. Pulse number differences of 30 and 61 between the measurement and reference paths were determined precisely, with slight tuning of the 53.4 MHz repetition frequency. Moreover, with pulse number difference of 61, a 6.4-m-wide scanning for the relative pulse position is possible only by 1 MHz repetition frequency tuning, which makes pulses overlapped for arbitrary distance. Such wide-range high-precision delay length scanning can be used to measure arbitrary distances by using a highly stabilized long fiber-based reference path. (C)2015 Optical Society of America