Patent ID: 8897654
Filing Date: 2014-11-25
Classification: G01S,H04B

Abstract:
1. A system for generating a frequency modulated laser waveform, the system comprising: a laser capable of producing a laser output signal having a single frequency and a linewidth centered at ω an electro-optical modulator coupled to the laser and configured for receiving the laser output signal from the laser; an electric ramp generator comprising a voltage controlled oscillator controlled by a digital micro-controller that is capable of generating a linear ramp, wherein the electric ramp generator is coupled to the electro-optical modulator and capable of generating a ramp having a frequency chirp with a bandwidth B over a time period T, and a modulation offset frequency ω a band-pass optical filter coupled to the electro-optical modulator and capable of receiving the modulated waveform and for filtering out harmonic frequencies created by the electro-optical modulator during modulation of the laser output signal; wherein the band-pass optical filter includes a bandwidth BW greater than the modulation bandwidth B and less than the modulation offset frequency ω wherein the modulation offset frequency ω