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Dual wavelength resampling system and method

  • US 10,206,567 B2
  • Filed: 07/12/2017
  • Issued: 02/19/2019
  • Est. Priority Date: 07/12/2017
  • Status: Active Grant
First Claim
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1. An optical coherence tomography (OCT) system comprising:

  • a first light source configured to emit a first beam having a first wavelength;

    a second light source configured to emit a second beam having a second wavelength;

    an interferometer, wherein the first beam and the second beam are configured to be directed into the interferometer, and further wherein the interferometer comprises;

    a reference path, andan interferometer sample path;

    a detector configured to compare light from the reference path with light from the interferometer sample path and produce an imaging sample signal based on the comparison; and

    a first splitter configured to split light from at least one of the first light source and the second light source, wherein the first splitter is located on a light path between the first light source and the interferometer;

    a first wavelength reference filter having an equal interval frequency comb, wherein the wavelength reference filter is configured to produce a sequential clock waveform from light received from the first splitter; and

    a signal processing circuit configured to resample the imaging sample signal based on the sequential clock waveform.

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