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Quantitative in situ measurement of optical force along a strand of cleaved silica optical fiber induced by the light guided therewithin
Photonics Research ( IF 7.6 ) Pub Date : 2021-09-16 , DOI: 10.1364/prj.433995
Mikko Partanen , Hyeonwoo Lee , Kyunghwan Oh

We propose an optomechanical system to quantify the net force on a strand of cleaved silica optical fiber in situ as the laser light is being guided through it. Four strands of the fiber were bonded to both sides of a macroscopic oscillator, whose movements were accurately monitored by a Michelson interferometer. The laser light was propagating with variable optical powers and frequency modulations. Experimentally, we discovered that the driving force for the oscillator consisted of not only the optical force of the light exiting from the cleaved facets but also the tension along the fiber induced by the light guided therewithin. The net driving force was determined only by the optical power, refractive index of the fiber, and the speed of light, which pinpoints its fundamental origin.

中文翻译:

沿一束切割石英光纤的光学力的定量原位测量,该光纤由其中引导的光引起

我们提出了一种光机械系统,当激光被引导通过它时,原位量化一束切割石英光纤上的净力。将四股光纤连接到宏观振荡器的两侧,其运动由迈克尔逊干涉仪精确监测。激光以可变光功率和频率调制方式传播。通过实验,我们发现振荡器的驱动力不仅包括从劈裂面射出的光的光学力,还包括由在其中引导的光引起的沿光纤的张力。净驱动力仅由光纤的光功率、折射率和光速决定,光速确定了其基本起源。
更新日期:2021-10-02
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