Systems for Extended Depth Frequency Domain Optical Coherence Tomography (FDOCT) and Related Methods

摘要

Systems for extended depth frequency domain optical coherence tomography are provided including including a detection system configured to sample spectral elements at substantially equal frequency intervals, wherein a spectral width associated with the sampled spectral elements is not greater than one-half of the frequency interval. Related methods are also provided herein.

主权项

1. An extended depth Fourier Domain OCT (FDOCT) imaging system, the system comprising:
an optical source having a bandwidth; an optical detection system configured to sample a plurality of spectral elements within the bandwidth of the optical source at substantially equal optical frequency intervals, wherein the optical frequency intervals are no greater than about 5.35 GHz and wherein a number of sampled plurality of elements is no less than about 1024; a reference arm, a sample arm and an optical combiner configured to couple the reference arm and the sample arm to the optical detection system, wherein the FDOCT imaging system provides a spatial domain image within a spatial domain image window; wherein the spatial domain image window has a depth in inverse proportion to the optical frequency interval; and wherein a reference arm path length associated with the reference arm and a sample arm path length associated with the sample arm are configured to set a position of an image of a structure of a sample within the spatial domain image window.