Detector remodulator and optoelectronic switch
First Claim
1. An optoelectronic packet switch comprising:
- one or more switch input(s) for receiving optical packet signals;
a passive optical router having input ports and output ports, the optical paths between which are wavelength dependent; and
a plurality of detector remodulators (DRMs) configured to receive optical signals from the one or more switch input(s) and to generate modulated optical signals for transmission to the input ports of the passive optical router, each detector remodulator (DRM) comprising;
one or more detectors for converting an optical packet signal received at the one or more switch input(s) into an electrical packet signal;
one or more modulators for generating the modulated optical signals, each modulator being configured to;
receive, from a laser, an unmodulated optical signal having a wavelength;
receive the electrical packet signal from one of the detectors; and
to generate a modulated optical signal at the wavelength, the modulated optical signal containing the information of the electric packet signal and the wavelength being chosen to select a desired output port of the passive optical router for the modulated optical signal; and
an electronic circuit connecting each of the one or more detectors to a corresponding modulator,wherein each of the one or more modulators is a separate component from the laser that is configured to supply it with the unmodulated optical signal.
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Accused Products
Abstract
An optoelectronic packet switch comprising: switch input(s) for receiving optical packet signals; a passive optical router; a control unit; and a plurality of detector-remodulators (DRMs) configured to receive signals from the switch input(s) and to generate modulated optical signals for transmission to the input ports of the passive optical router. Each DRM comprising: detector(s) for converting an optical packet-signal received at the switch input(s) into an electrical packet-signal; modulator(s) for generating the modulated optical signals. Each modulator configured to: receive a wavelength-tuned input from a tunable laser; receive the electrical packet-signal from one of the detectors; and to generate a modulated optical signal at the tuned wavelength, the modulated signal containing the information of the electric packet-signal and the tuned wavelength chosen to select an output port of the passive optical router for the modulated optical signal; and an electronic circuit connecting each of the detector(s) to a corresponding modulator.
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Citations
17 Claims
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1. An optoelectronic packet switch comprising:
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one or more switch input(s) for receiving optical packet signals; a passive optical router having input ports and output ports, the optical paths between which are wavelength dependent; and a plurality of detector remodulators (DRMs) configured to receive optical signals from the one or more switch input(s) and to generate modulated optical signals for transmission to the input ports of the passive optical router, each detector remodulator (DRM) comprising; one or more detectors for converting an optical packet signal received at the one or more switch input(s) into an electrical packet signal; one or more modulators for generating the modulated optical signals, each modulator being configured to;
receive, from a laser, an unmodulated optical signal having a wavelength;
receive the electrical packet signal from one of the detectors; and
to generate a modulated optical signal at the wavelength, the modulated optical signal containing the information of the electric packet signal and the wavelength being chosen to select a desired output port of the passive optical router for the modulated optical signal; andan electronic circuit connecting each of the one or more detectors to a corresponding modulator, wherein each of the one or more modulators is a separate component from the laser that is configured to supply it with the unmodulated optical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A detector remodulator (DRM) comprising:
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one or more detectors for converting an optical packet signal into an electrical packet signal; one or more modulators, each modulator being configured to;
receive, from a laser, an unmodulated optical signal;
receive the electrical packet signal from one of the detectors; and
to generate a modulated optical signal, the modulated optical signal containing information of the electrical packet signal; andan electronic circuit connecting the detector and the modulator, the electronic circuit containing means for controlling the generation of the modulated optical signal, wherein the modulator is a separate component from the laser.
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17. An optoelectronic circuit switch comprising:
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one or more switch input(s) for receiving optical input signals; a passive optical router having input ports and output ports; and a plurality of detector remodulators (DRMs) configured to receive optical signals from the switch input(s) and to generate modulated optical signals for transmission to the input ports of the passive optical router, each detector remodulator (DRM) comprising; one or more detectors for converting each optical signal received at the switch input(s) into an electrical signal; one or more modulators for generating the modulated optical signals, each modulator being configured;
to receive, from a laser, an unmodulated optical signal having a wavelength;
to receive the electrical signal from one of the detectors; and
to generate a modulated optical signal at the wavelength, the wavelength being chosen to select a desired output port of the passive optical router and the modulated optical signal containing the information of the electrical signal; andan electronic circuit connecting the detector and the modulator, wherein each of the one or more modulators is a separate component from the laser that is configured to supply it with the unmodulated optical signal.
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Specification