METHODS AND SYSTEMS RELATING TO OPTICAL NETWORKS
First Claim
1. A device comprising:
- a pluggable optic housing;
a pair of optical connectors or pigtails coupled to a receiver and a transmitter position allowing the daisy-chaining of multiple instances of the device as well as point to point connectivity between two instances of the device onto two fibers; and
a tunable optical wavelength selective circuit comprising a plurality of wavelength selective filters and a rotatable microoptoelectromechanical system (MOEMS) for selecting a wavelength selective filter of the plurality of wavelength selective filters to tune the tunable optical wavelength selective circuit.
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Accused Products
Abstract
Data center interconnections, which encompass WSCs as well as traditional data centers, have become both a bottleneck and a cost/power issue for cloud computing providers, cloud service providers and the users of the cloud generally. Fiber optic technologies already play critical roles in data center operations and will increasingly in the future. The goal is to move data as fast as possible with the lowest latency with the lowest cost and the smallest space consumption on the server blade and throughout the network. Accordingly, it would be beneficial for new fiber optic interconnection architectures to address the traditional hierarchal time-division multiplexed (TDM) routing and interconnection and provide reduced latency, increased flexibility, lower cost, lower power consumption, and provide interconnections exploiting N×M×D Gbps photonic interconnects wherein N channels are provided each carrying M wavelength division signals at D Gbps.
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Citations
26 Claims
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1. A device comprising:
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a pluggable optic housing; a pair of optical connectors or pigtails coupled to a receiver and a transmitter position allowing the daisy-chaining of multiple instances of the device as well as point to point connectivity between two instances of the device onto two fibers; and a tunable optical wavelength selective circuit comprising a plurality of wavelength selective filters and a rotatable microoptoelectromechanical system (MOEMS) for selecting a wavelength selective filter of the plurality of wavelength selective filters to tune the tunable optical wavelength selective circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a plurality of serially connected reconfigurable optical add-drop multiplexers (ROADMs), each ROADM providing for the addition of a first predetermined number of wavelength channels to a link within an optical network to which the ROADMs are connected and the subtraction of a second predetermined number of wavelength channels from the link of the optical network to which the ROADM is connected;
whereineach ROADM is configured upon determination of its position within the plurality of serially connected ROADMs; and each ROADM comprises a tunable optical wavelength selective circuit comprising a plurality of wavelength selective filters and a rotatable microoptoelectromechanical system (MOEMS) for selecting a wavelength selective filter of the plurality of wavelength selective filters to tune the tunable optical wavelength selective circuit. - View Dependent Claims (13, 14, 15)
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16. A system comprising:
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a plurality of nodes, each node of the plurality of nodes being connected to M subsequent sequential nodes via a wavelength division multiplexed link comprising at least M wavelengths, wherein each node of the plurality of nodes is connected to the next Nth node via the Nth wavelength of the at least M wavelengths; and employs a reconfigurable optical add-drop switch employing a plurality of tunable optical wavelength selective circuits, each tunable optical wavelength selective circuit comprising a plurality of wavelength selective filters and a rotatable microoptoelectromechanical system (MOEMS) for selecting a wavelength selective filter of the plurality of wavelength selective filters to tune the tunable optical wavelength selective circuit. - View Dependent Claims (17)
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18. A system comprising:
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a MEMS based latching 1×
N optical switch employing a rotatable microelectromechanical systems (MEMS) element;M optical sources, each optical source operating within a predetermined wavelength range; at least one optical time domain reflectometry (OTDR) signal; M optical couplers, each optical coupler to overlay an OTDR signal to the M optical sources to a predetermined output of the N outputs of the 1×
N optical switch; anda controller for determining whether to change the state of the MEMS based latching 1×
N optical switch in dependence upon at least the OTDR signals from the M optical sources. - View Dependent Claims (19)
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20. A device comprising:
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a transceiver body, the body having an external physical geometry compliant to a predetermined optical transceiver standard; a reconfigurable optical add-drop switch employing a plurality of tunable optical wavelength selective circuits, each tunable optical wavelength selective circuit comprising a plurality of wavelength selective filters and a rotatable microoptoelectromechanical system (MOEMS) for selecting a wavelength selective filter of the plurality of wavelength selective filters to tune the tunable optical wavelength selective circuit; and an optical amplifier;
whereinthe reconfigurable optical add-drop switch and optical amplifier are packaged within the transceiver body. - View Dependent Claims (21)
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22. A device comprising:
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a polarization independent amplifier comprising; a polarization splitter to split an incoming optical signal into TE and TM polarization components; a polarization rotator to rotate the TM polarization to TE; a pair of semiconductor optical amplifiers to amplify the pair of TE optical signals; and a combiner to combine the pair of outputs from the pair of semiconductor optical amplifiers; and a reconfigurable optical add-drop module for dropping and adding a predetermined band of wavelengths from a plurality of bands of optical wavelengths employing a plurality of tunable optical wavelength selective circuits, each tunable optical wavelength selective circuit comprising a plurality of wavelength selective filters and a rotatable microoptoelectromechanical system (MOEMS) for selecting a wavelength selective filter of the plurality of wavelength selective filters to tune the tunable optical wavelength selective circuit. - View Dependent Claims (23)
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24. A device comprising:
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a transceiver body, the body having an external physical geometry compliant to a predetermined optical transceiver standard a MEMS based latching 1×
N optical switch employing a rotatable microelectromechanical systems (MEMS) element;a micro-controller integrated in the transceiver body for controlling the 1×
N optical switch;
whereinthe input of the 1×
N optical switch is for coupling to a first optical transceiver via at least one of a connectorised interface on the device and a fiber pigtail;the N outputs of the 1×
N optical switch are for coupling to N second optical transceivers via at least one of connectorised interfaces on the device and fiber pigtails. - View Dependent Claims (25, 26)
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Specification