Infrared Optical Path Adjustment method for Common-Path Optical Coherence Tomography

摘要

A new,common-path,in-axis concentric beam-splitting Michelson interferometer is demonstrated for optical coherence tomography (OCT),which can be used to perform high-resolution cross-sectional in vivo and in situ imaging of biological tissues.A piece of glass tube with its inner diameter smaller than the beam-width of the collimated light is used to split the light into a reference and sample beam.In order to obtain the optimal spectral interferogram of this OCT system,an infrared optical path adjustment method was introduced in this paper.