System and method for producing high-precision electrical signals and continuous-wave optical signals
First Claim
1. A system, comprising:
- a photonic oscillator configured to produce a multifrequency optical signal having a spectrum that includes regularly spaced spectral lines;
a first photodetector configured to convert the multifrequency optical signal to a first multifrequency electrical signal having a spectrum that includes the regularly spaced spectral lines;
a first bandpass filter configured to attenuate all but a first spectral line of the spectrum of the first multifrequency electrical signal to form a first single-frequency electrical signal at the frequency of the first spectral line; and
a first continuous-wave laser configured to lock to the multifrequency optical signal and produce a first continuous-wave optical signal at a first wavelength in response to the multifrequency optical signal.
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Abstract
A photonic oscillator can produce a multifrequency optical signal having a spectrum that includes regularly spaced spectral lines. A photodetector can convert the multifrequency optical signal to a multifrequency electrical signal having a spectrum that includes the regularly spaced spectral lines. A bandpass filter can attenuate all but one spectral line of the spectrum of the multifrequency electrical signal to form a single-frequency electrical signal having leading/trailing edges that have the same precision as the photonic oscillator. A continuous-wave laser can lock to the multifrequency optical signal and produce a continuous-wave optical signal at a wavelength precisely locked to the photonic oscillator. A data encoder/decoder can modulate/demodulate a data stream onto/from the continuous-wave optical signal at a data rate of the single-frequency electrical signal. The modulated optical signal can be clocked with the leading/trailing edges of the single-frequency electrical signal.
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Citations
20 Claims
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1. A system, comprising:
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a photonic oscillator configured to produce a multifrequency optical signal having a spectrum that includes regularly spaced spectral lines; a first photodetector configured to convert the multifrequency optical signal to a first multifrequency electrical signal having a spectrum that includes the regularly spaced spectral lines; a first bandpass filter configured to attenuate all but a first spectral line of the spectrum of the first multifrequency electrical signal to form a first single-frequency electrical signal at the frequency of the first spectral line; and a first continuous-wave laser configured to lock to the multifrequency optical signal and produce a first continuous-wave optical signal at a first wavelength in response to the multifrequency optical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system, comprising:
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a photonic oscillator configured to produce a multifrequency optical signal having a spectrum that includes regularly spaced spectral lines; a photodetector configured to convert the multifrequency optical signal to a multifrequency electrical signal having a spectrum that includes the regularly spaced spectral lines; a bandpass filter configured to attenuate all but a first spectral line of the spectrum of the multifrequency electrical signal to form a single-frequency electrical signal at the frequency of the first spectral line; a first continuous-wave laser configured to lock to the multifrequency optical signal and produce a first continuous-wave optical signal at a first wavelength in response to the multifrequency optical signal; a second continuous-wave laser configured to lock to the multifrequency optical signal and produce a second continuous-wave optical signal at a second wavelength in response to the multifrequency optical signal. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A system, comprising:
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a photonic oscillator configured to produce a multifrequency optical signal having a spectrum that includes regularly spaced spectral lines; a first photodetector configured to convert the multifrequency optical signal to a first multifrequency electrical signal having a spectrum that includes the regularly spaced spectral lines; a first bandpass filter configured to attenuate all but a first spectral line of the spectrum of the first multifrequency electrical signal to form a first single-frequency electrical signal at the frequency of the first spectral line; a plurality of continuous-wave lasers configured to lock to the multifrequency optical signal and produce respective continuous-wave optical signals at respective wavelengths in response to the multifrequency optical signal, the wavelengths of the continuous-wave optical signals are different from one another. - View Dependent Claims (17, 18, 19, 20)
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Specification