Integrated opto-electronic oscillators
First Claim
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1. An opto-electronic device, comprising:
- a substrate;
first and second waveguides formed on the substrate;
a first grating coupler formed in the first waveguide to couple input light incident to the substrate into the first waveguide;
an optical resonator in optical communication with the first and second waveguides to exchange light;
an optical modulator coupled to the first waveguide and operable to modulate light in the first waveguide in response to an electrical modulation signal;
a photodetector positioned on the substrate to receive and convert an optical output from the second waveguide into an electrical signal; and
an electrical link coupled between the photodetector and the optical modulator to produce the electrical modulation signal from said electrical signal.
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Abstract
Integrated opto-electronic oscillators that use micro resonators in the optical section of the opto-electronic feedback loop.
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Citations
24 Claims
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1. An opto-electronic device, comprising:
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a substrate;
first and second waveguides formed on the substrate;
a first grating coupler formed in the first waveguide to couple input light incident to the substrate into the first waveguide;
an optical resonator in optical communication with the first and second waveguides to exchange light;
an optical modulator coupled to the first waveguide and operable to modulate light in the first waveguide in response to an electrical modulation signal;
a photodetector positioned on the substrate to receive and convert an optical output from the second waveguide into an electrical signal; and
an electrical link coupled between the photodetector and the optical modulator to produce the electrical modulation signal from said electrical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An opto-electronic device, comprising:
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a substrate;
an optical ring cavity formed on the substrate to circulate light;
an optical resonator on the substrate and optically coupled to the optical ring cavity via evanescent coupling;
an optical modulation mechanism in the optical ring cavity to modulate light in the optical ring cavity in response to a modulation control signal;
a photodetector on the substrate to receive a portion of the light in the optical ring cavity; and
a feedback circuit to receive a detector output from the photodetector and to produce the modulation control signal from the detector output. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification