WAVELENGTH-SWITCHED OPTICAL ADD-DROP MULTIPLEXER WITH WAVELENGTH BROADCASTING CAPABILITY
First Claim
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1. A wavelength-switched reconfigurable optical add-drop multiplexer with wavelength broadcasting capability, comprising:
- a wavelength selective switch comprising an input port operable for receiving an input optical signal and a plurality of output ports operable for outputting a plurality of output optical signals, wherein at least one of the plurality of output ports is designated as a broadcast port, and wherein the broadcast port is operable for outputting an output optical signal that is to be both locally received and broadcast; and
a splitter coupled to the broadcast port of the wavelength selective switch, wherein the splitter splits the output optical signal outputted by the broadcast port into a locally received optical signal and a broadcast optical signal.
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Abstract
The present invention provides a wavelength-switched reconfigurable optical add-drop multiplexer (R-OADM) with wavelength broadcasting capability, such that asymmetric video signal distribution and the like can be performed without sacrificing with respect to component complexity and expense. The present invention utilizes an optical splitting and combining device with the wavelength-switched R-OADM to allow the R-OADM to support network-wide wavelength broadcasts without requiring external regeneration and extra optical transceiver equipment.
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Citations
20 Claims
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1. A wavelength-switched reconfigurable optical add-drop multiplexer with wavelength broadcasting capability, comprising:
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a wavelength selective switch comprising an input port operable for receiving an input optical signal and a plurality of output ports operable for outputting a plurality of output optical signals, wherein at least one of the plurality of output ports is designated as a broadcast port, and wherein the broadcast port is operable for outputting an output optical signal that is to be both locally received and broadcast; and a splitter coupled to the broadcast port of the wavelength selective switch, wherein the splitter splits the output optical signal outputted by the broadcast port into a locally received optical signal and a broadcast optical signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wavelength broadcasting method, comprising:
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receiving an optical signal; splitting the optical signal into a locally received optical signal and a broadcast optical signal; locally receiving the locally received optical signal; and broadcasting the broadcast optical signal. - View Dependent Claims (8, 9, 10, 11)
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12. A multi-degree wavelength-switched reconfigurable optical add-drop multiplexer with wavelength broadcasting capability, comprising:
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a wavelength selective switch comprising an input port operable for receiving an input optical signal and a plurality of output ports operable for outputting a plurality of output optical signals, wherein at least one of the plurality of output ports is designated as a broadcast port, and wherein the broadcast port is operable for outputting an output optical signal that is to be both locally received and broadcast; and a 1;
N splitter coupled to the broadcast port of the wavelength selective switch, wherein the 1;
N splitter splits the output optical signal outputted by the broadcast port into a locally received optical signal and N broadcast optical signals, wherein N comprises number of degrees. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification