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Mach-zehnder based optical marker/comb generator for streak camera calibration

  • US 8,970,724 B2
  • Filed: 06/14/2013
  • Issued: 03/03/2015
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A marker or comb generator for generating optical markers or optical combs for calibration during image recordation of an event:

  • a reference signal generator configured to generate a pulse stream;

    a driver configured to receive and amplify the pulse stream to a magnitude for driving an optic signal generator;

    an optic signal generator configured to generate an optic reference signal representing the pulse stream;

    a bias modulator configured to generate a bias signal;

    a signal generator configured to generate a high frequency modulation signal;

    a Mach-Zehnder modulator configured to receive the optic reference signal, the bias signal, and the high frequency modulation signal to generate optical markers or combs at a higher frequency than the reference signal; and

    an image recording device configured to record an event to create a recorded image and superimpose the optical markers or optical combs on the recorded image to thereby establish timing calibration or temporal reference on the recorded image.

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