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US 12,431,687 B2Granted
Multi-octave spanning millimeter wave source with phase memory
AssigneeRaytheon Company
InventorsPaul T. Hartin, Kalin Spariosu, Michael R. Patrizi
Life of this patent
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Abstract
A synthesizer including a controller configured to receive a first signal. A digital-to-analog converter (DAC) is coupled to the controller and is configured to generate a voltage bias based on the first signal. The voltage bias corresponds to a target resonant frequency. A semiconductor laser is coupled to the DAC and is configured to receive a second signal tone. The semiconductor laser generates a plurality of tone signals having octave multiples of a base sub-harmonic tone of the second signal tone.
Claims20
A synthesizer comprising:
- a controller configured to receive a first signal;
- a digital-to-analog converter (DAC) configured to generate a voltage bias based on the first signal, the voltage bias corresponding to a target resonant frequency;
- and
- a semiconductor laser configured to receive the voltage bias from the DAC, receive a second signal tone, and generate a plurality of tone signals having octave multiples of a base sub-harmonic tone of the second signal tone.
1 more element
A method comprising:
- providing a first signal to a controller;
- generating, by a digital-to-analog converter (DAC), a voltage bias based on the first signal, the voltage bias corresponding to a target resonant frequency;
- providing a second frequency signal tone to a semiconductor laser, the second frequency signal tone having sub-harmonic frequencies equal to multiple values of a frequency comb (FC) component, wherein the semiconductor laser receives the voltage bias from the DAC;
- and
- generating, by the semiconductor laser, an output signal when a specific tone signal or a plurality of tone signals have mutual coherence and/or phase memory.
2 more elements
Dependencies are inferred from the claim text.