Optical processing
DCFirst Claim
1. An optical routing device having a first module, at least two second modules, a device input and at least two device outputs, the first and second modules each having an array of phase-modulating elements, the device input receiving an ensemble of optical channels on a common beam, the ensemble being formed by a multiplex of signals at different wavelengths, and the array of phase-modulating elements of the first module arranged to individually process the channels from the ensemble of optical channels at different wavelengths to route the channels to respective second modules for output as respective output ensembles of optical channels formed by a multiplex of signals on respective common beams.
1 Assignment
Litigations
2 Petitions
Accused Products
Abstract
A modular routing node includes a single input port and a plurality of output ports. The modular routing node is arranged to produce a plurality of different deflections and uses small adjustments to compensate for wavelength differences and alignment tolerances in an optical system. An optical device is arranged to receive a multiplex of many optical signals at different wavelengths, to separate the optical signals into at least two groups, and to process at least one of the groups adaptively.
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Citations
44 Claims
- 1. An optical routing device having a first module, at least two second modules, a device input and at least two device outputs, the first and second modules each having an array of phase-modulating elements, the device input receiving an ensemble of optical channels on a common beam, the ensemble being formed by a multiplex of signals at different wavelengths, and the array of phase-modulating elements of the first module arranged to individually process the channels from the ensemble of optical channels at different wavelengths to route the channels to respective second modules for output as respective output ensembles of optical channels formed by a multiplex of signals on respective common beams.
- 7. An optical routing device having at least two first modules, a second module, at least two device inputs and a device output, the first and second modules each having an array of phase-modulating elements, the device inputs receiving ensembles of optical channels formed by multiplexes of signals on a common beam and each connected to a respective first module, and the array of phase-modulating elements of the first modules are arranged to individually process the channels from the ensembles of optical channels at different wavelengths to route the channels to the second module for output as an ensemble of optical channels formed by a multiplex of signals on respective common beams.
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10. A method of operating a routing device having plural modules, each having a respective array of phase-modulating elements, the routing device receiving one or more input ensembles of optical channels formed by a multiplex of signals on a common beam and providing one or more output ensembles of optical channels formed by a multiplex of signals on a common beam, the method comprising:
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deflecting the channels using the arrays to provide a desired routing; and adjusting beam deflections created by the phase-modulating elements of the array used to compensate for wavelength differences.
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11. A method of operating a routing device having plural modules, each having a respective array of phase-modulating elements, the routing device receiving one or more input ensembles of optical channels formed by a multiplex of signals on a common beam and providing one or more output ensembles of optical channels formed by a multiplex of signals on a common beam, the method comprising:
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deflecting the channels using the arrays to provide a desired routing; and adjusting beam deflections created by the phase-modulating elements of the array used to compensate for alignment tolerances in said device.
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12. A method of operating a routing device having plural modules, each having a respective array of phase-modulating elements, the routing device receiving one or more input ensembles of optical channels formed by a multiplex of signals on a common beam and providing one or more output ensembles of optical channels formed by a multiplex of signals on a common beam, the method comprising:
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deflecting the channels using the arrays to provide a desired routing; and applying independent channel equalization for all of the channels flowing through each module.
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- 13. An add/drop device having a first module, a second module, a first device input and a first device output, the first and second modules each having a respective array of phase-modulating elements, the first device input receiving an input ensemble of optical channels formed by a multiplex of signals on a common beam, the array of phase-modulating elements of the first module arranged to individually process the channels from the ensemble of optical channels at different wavelengths to route selected channels to the second module for output as an output ensemble of optical channels formed by a multiplex of signals on a common beam.
- 18. An optical device with an array of phase-modulating elements, the device having an input arranged to receive a multiplex of optical signals at different wavelengths in a common beam, the array of phase modulating elements being arranged to receive the optical signals of the multiplex from the device input, to separate the optical signals into at least two groups, and to process at least one of the groups of optical signals, wherein the array of phase-modulating elements is provided by a reflective LCOS SLM.
Specification