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Laser beam generation system employing a laser diode and high-frequency modulation circuitry mounted on a flexible circuit

  • US 7,806,336 B2
  • Filed: 10/30/2007
  • Issued: 10/05/2010
  • Est. Priority Date: 11/24/2000
  • Status: Expired due to Fees
First Claim
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1. A laser beam generation system having an integrated coherence length reduction mechanism, comprising:

  • a flexible circuit having a first end portion and a second end portion;

    a laser diode mounted on said first end portion of said flexible circuit, for producing a laser beam having a central characteristic wavelength and a coherence length;

    diode current drive circuitry for producing a diode drive current to drive said laser diode and produce said laser beam; and

    high frequency modulation (HFM) circuitry, mounted on said first end portion of said flexible circuit, for modulating said diode drive current at a sufficiently high frequency to cause said laser diode to generate spectral side-band components about said central characteristic wavelength, and thereby reducing the coherence length of said laser beam.

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