A novel small-sized optical fiber inerterometer

摘要

This is a report on a type of small-sized interferometer, which makes use of the coupling of optical fiber and gradient index lens (GRIN) to form a type of light path which radiates paralled light beams, optical filter is used to divide a beam into two, the interferometer is small-sized and highly sensitive, which can be used to measure the index of refraction of transparent gas and liquid.