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Motion compensated multi-wavelength digital holography

  • US 9,581,967 B1
  • Filed: 01/07/2015
  • Issued: 02/28/2017
  • Est. Priority Date: 01/07/2015
  • Status: Active Grant
First Claim
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1. A holography imaging system, comprising:

  • a first laser configured to generate an output having a constant frequency;

    a second laser configured to generate an output having a non-constant frequency;

    a transmitter optical system configured to illuminate a target simultaneously using a first portion of the output of the first laser and a first portion of the output of the second laser;

    a detector array;

    a receiver optical system configured to receive a returned light from the illuminated target and focus the returned light onto the detector array;

    a first illumination point source configured to radiate a second portion of the output of the first laser, wherein a location of the first illumination point source is in-plane with a pupil of the receiver optical system, and the first illumination point source is configured to direct the second portion of the output of the first laser onto the detector array; and

    a second illumination point source configured to radiate a second portion of the output of the second laser, wherein a location of the second illumination point source is in-plane with the pupil of the receiver optical system, and the second illumination point source is configured to direct the second portion of the output of the second laser onto the detector array,wherein the holography imaging system is configured to detect simultaneously holograms formed on the detector array based on the returned light, the second portion of the output of the first laser, and the second portion of the output of the second laser.

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