Scalable Reconfigurable Optical Add-Drop Multiplexer
First Claim
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1. An apparatus, comprising:
- a common optical receive port in communication with a first optical splitter;
a plurality of optical output ports in communication with a second optical splitter disposed, in an optical path, after the first optical splitter, each one of the plurality of optical output ports configured to output at least one optical channel of a plurality of optical channels received in an optical signal via the common optical receive port;
an auxiliary optical transmit port coupled to the common optical receive port via the first optical splitter;
a common optical transmit port in communication with a first optical coupler;
a plurality of optical input ports each configured to receive at least one optical channel of the plurality of optical channels to be output via the common optical transmit port via a second optical coupler disposed, in an optical path, prior to the first optical coupler; and
an auxiliary optical receive port coupled to the common optical transmit port and configured to supply at least one optical channel of the plurality of optical channels for transmission via the first optical coupler.
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Abstract
An apparatus includes a first optical switching complex, a second optical switching complex in optical communication with the first optical switching complex, and an optical add/drop module in optical communication with the first optical switching complex and the second optical switching complex. At least one of the optical switching complexes includes a wavelength selective switch that is configured to be arranged in a cascaded configuration that, when so configured, results in an increase in a number of available transmit and receive ports available per degree of the apparatus.
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Citations
19 Claims
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1. An apparatus, comprising:
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a common optical receive port in communication with a first optical splitter; a plurality of optical output ports in communication with a second optical splitter disposed, in an optical path, after the first optical splitter, each one of the plurality of optical output ports configured to output at least one optical channel of a plurality of optical channels received in an optical signal via the common optical receive port; an auxiliary optical transmit port coupled to the common optical receive port via the first optical splitter; a common optical transmit port in communication with a first optical coupler; a plurality of optical input ports each configured to receive at least one optical channel of the plurality of optical channels to be output via the common optical transmit port via a second optical coupler disposed, in an optical path, prior to the first optical coupler; and an auxiliary optical receive port coupled to the common optical transmit port and configured to supply at least one optical channel of the plurality of optical channels for transmission via the first optical coupler. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus comprising:
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a first optical switching complex; a second optical switching complex in optical communication with the first optical switching complex; and an optical add/drop module in optical communication with the first optical switching complex and the second optical switching complex, wherein at least one of the optical switching complexes includes a wavelength selective switch that is configured to be arranged in a cascaded configuration that, when so configured, results in an increase in a number of available transmit and receive ports available per degree of the apparatus. - View Dependent Claims (14, 15, 16, 17)
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18. A method comprising:
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receiving, at a first input port, an optical signal carrying a plurality of channels; replicating the optical signal to obtain a replica of the optical signal, and providing the replica of the optical signal to a first output port; outputting selected channels of the plurality of channels of the optical signal via a plurality of output ports served by respective wavelength selective filters; outputting, at a second output port different from the plurality of output ports, selected channels of the plurality of channels received via a plurality of input ports not including the first input port; and outputting, via the second output port, different selected channels received via a second input port different from the plurality of input ports. - View Dependent Claims (19)
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Specification