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Multiple wavelength laser system

  • US 8,724,671 B2
  • Filed: 01/24/2013
  • Issued: 05/13/2014
  • Est. Priority Date: 01/24/2012
  • Status: Active Grant
First Claim
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1. A system for generating multiple simultaneous laser wavelengths, said system comprising:

  • a pulsed slave laser comprising a non-linear electro-optic crystal optically coupled to a lasing crystal in a ring cavity configuration, said non-linear electro-optic crystal configured to adjust an optical path length of said ring cavity in response to an applied voltage potential;

    an energy pump configured to initiate a pulse cycle in said pulsed slave laser in response to a flash trigger;

    a master seed laser configured to inject a first single frequency laser beam into said pulsed slave laser;

    a slave seed laser configured to inject a second single frequency laser beam into said pulsed slave laser; and

    a cavity control circuit configured to;

    apply said voltage potential to said non-linear electro-optic crystal;

    ramp said voltage potential from an initial voltage to a final voltage, said final voltage associated with detection of a cavity resonance condition associated with said adjusted optical path length, said cavity resonance condition matching a resonance condition of said master seed laser;

    maintain said voltage potential at said final voltage for a pre-determined hold-time period;

    de-tune said slave seed laser, during said hold-time period, such that said slave seed laser matches said cavity resonance condition; and

    provide a Q-switch trigger to said energy pump within 30 microseconds of the start of said hold-time period.

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