×

Circuit And Method For Lessening Noise In A Laser System Having A Frequency Converting Element

  • US 20080144678A1
  • Filed: 12/05/2007
  • Published: 06/19/2008
  • Est. Priority Date: 12/14/2006
  • Status: Active Grant
First Claim
Patent Images

1. A method of controlling the output signal generated by a frequency converting crystal comprising the steps of:

  • a) providing a frequency converting crystal with light of a first wavelength at an input end thereof;

    b) detecting a portion of frequency converted light exiting an output end of the frequency converting crystal and converting the portion of frequency converted light to an electrical signal;

    c) determining from the electrical signal, a level of noise present in the detected portion of the frequency converted light; and

    d) repeatedly varying the temperature of the frequency converting crystal upward and downward, while continuing to perform steps (b) and (c) so as to minimize the RMS noise present in the frequency converted light.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×