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Infinera Corp patents


Recent patent applications related to Infinera Corp. Infinera Corp is listed as an Agent/Assignee. Note: Infinera Corp may have other listings under different names/spellings. We're not affiliated with Infinera Corp, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "I" | Infinera Corp-related inventors


Fast least-mean-square (lms) equalization

Apparatus and methods may provide improved equalizer performance, e.g., for optical-fiber-based communication systems. A least-mean-square (lms) equalizer may include a decision feedback path containing feedback carrier recovery (fbcr), which may have low latency, and which may thus enable high-speed tap updating in the equalizer. ... Infinera Corp

Non-blocking mach-zehnder modulator arm imbalance monitoring and control through tones

A method and an apparatus for non-blocking mach-zehnder modulator (mzm) arm imbalance monitoring and control through tones are disclosed herein. An optical transmitter may include an mzm to supply a first portion of light to an in-phase arm and a second portion to a quadrature arm of the mzm. ... Infinera Corp

Managing latencies in data center interconnect switches using spare line side bandwidth and multiple paths inside the data center

Systems, methods, and devices for managing latency in a network with a plurality of switches, each switch having client side ports and line side ports. A required bandwidth for each link between connected pairs of the plurality of switches is received. ... Infinera Corp

Techniques for reconciliation of planned network with deployed network

Techniques are disclosed herein for reconciling planned data for a network (such as a fiber optic network) with data describing the deployed network. Network probing and planning components obtain a snapshot of the deployed network and organize the snapshot into three “layers”: the “link layer,” which represents the physical links that underlie the network, the “digital layer,” which includes optical channel groups that divide the total capacity of the physical links, and the “service layer,” which includes the services delivered over the network. ... Infinera Corp

Hybrid optical transmitter and/or receiver structure

A device may include a substrate. The device may include a carrier mounted to the substrate. ... Infinera Corp

Tunable waveguide devices

Methods, systems, and apparatus, including a laser including a layer having first and second regions, the first region including a void; a mirror section provided on the layer, the mirror section including a waveguide core, at least part of the waveguide core is provided over at least a portion of the void; a first grating provided on the waveguide core; a first cladding layer provided between the layer and the waveguide core and supported by the second region of the layer; a second cladding layer provided on the waveguide core; and a heat source configured to change a temperature of at least one of the waveguide core and the grating, where an optical mode propagating in the waveguide core of the mirror section does not incur substantial loss due to interaction with portions of the mirror section above and below the waveguide core.. . ... Infinera Corp

Tunable waveguide devices

Methods, systems, and apparatus, including a laser including a layer having first and second regions, the first region including a void; a mirror section provided on the layer, the mirror section including a waveguide core, at least part of the waveguide core is provided over at least a portion of the void; a first grating provided on the waveguide core; a first cladding layer provided between the layer and the waveguide core and supported by the second region of the layer; a second cladding layer provided on the waveguide core; and a heat source configured to change a temperature of at least one of the waveguide core and the grating, where an optical mode propagating in the waveguide core of the mirror section does not incur substantial loss due to interaction with portions of the mirror section above and below the waveguide core.. . ... Infinera Corp

Tunable waveguide devices

Methods, systems, and apparatus, including a laser including a layer having first and second regions, the first region including a void; a mirror section provided on the layer, the mirror section including a waveguide core, at least part of the waveguide core is provided over at least a portion of the void; a first grating provided on the waveguide core; a first cladding layer provided between the layer and the waveguide core and supported by the second region of the layer; a second cladding layer provided on the waveguide core; and a heat source configured to change a temperature of at least one of the waveguide core and the grating, where an optical mode propagating in the waveguide core of the mirror section does not incur substantial loss due to interaction with portions of the mirror section above and below the waveguide core.. . ... Infinera Corp

System and method to add alien wavelength channels to optical line system

Systems, methods, and devices for adding an alien or native wavelength optical signal to a fiber optic line. A portion of a spectrum of the fiber optic line corresponding to the optical signal is blocked with a wavelength selective switch (wss). ... Infinera Corp

Passband abstraction layer

A node in an optical network may include a wavelength selective switch (wss) and a processor. The wavelength selective switch may have a plurality of input ports and a plurality of output ports for routing and/or power-controlling of optical slices. ... Infinera Corp

Transport segment oam routing mechanisms

Systems, methods, and devices for determining a property of, or isolating a fault in, a transport segment. A packet portion test packet can be transmitted over a packet portion of a transport segment. ... Infinera Corp

Flexe gmpls signaling extensions

Methodologies and systems that pass signals between control planes of nodes within a flexe network also conforming to the generalized multiprotocol label switching (gmpls) protocol are described. The signals passed between the control planes conform to the gmpls protocol and comprise a flexe ethernet group number and identify at least one ethernet phy conforming to the requirements of ieee 802.3-2015. ... Infinera Corp

Method and system for signaling defects in a network element with optical fabric

Embodiments include methods and apparatuses for providing at least one signaling indication of a super-channel by a power controller in a wavelength division multiplexing (wdm) system. The power controller may receive a service provisioning and a lock state from a network management entity. ... Infinera Corp

Heuristic constraint driven optical channel protection

Embodiments herein include methods and apparatuses for providing optical channel protection by a switching controller in an optical networking system. The switching controller may receive, from a light module, a digital fault status message that indicates whether a digital frame demodulated from an optical signal include a fault. ... Infinera Corp

11/09/17 / #20170324647

End point mapping service to assist transport segment routing

Methods, devices, and systems for mapping transport segment labels to packet network endpoints using a mapping server. In some implementations, an end point address in an edge domain is received from an edge router, a mapping of one of the end point address to a transport segment label is received from a network device, the mapping is stored in a non-transitory memory device, and the mapping is transmitted to the edge router.. ... Infinera Corp

10/12/17 / #20170295090

Intelligent optical restoration in integrated multi-layer networks

Memory devices, methods and systems are described in which a non-transitory memory device stores instructions that, when executed by a processor, cause the processor to: receive, via an input component, at least one message from a network element in a multi-layer network comprising information indicative of at least one failure of a working path; determine based at least in part on information indicative of a data transport path coincident with the working path in a second layer in the network different from the first layer, an alternate path in the first layer for transmission of the data through the multi-layer network; and transmit, via an output component, at least one signal comprising configuration instructions to at least one line module, the configuration instructions directing the line module to switch and transmit the data using the alternate path.. . ... Infinera Corp

10/12/17 / #20170294967

Asynchronous bias control for an optical modulator using a multiple tone detection technique with phase correction

In an asynchronous optical modulation system, a drive circuit may generate a plurality of dither tones in accordance with a predetermined dither frequency ratio. Based on the components of the dither frequency ratio, the optical modulation system may be configured to determine a feedback signal magnitude component that is independent of the delay τ and a feedback signal sign component that is also independent of the delay τ. ... Infinera Corp

10/12/17 / #20170294961

System and method for adaptive traffic engineering based on predicted traffic demand

Systems and methods for adaptive and automated traffic engineering of data transport services may include learning the demand between devices and data paths based on application workloads, prediction of traffic demand and paths based on the workload history, provisioning and management of data paths (i.e. Network links) based on the predicted demand, and real-time monitoring and data flow adaptation. ... Infinera Corp

09/07/17 / #20170257684

Systems, apparatus, and methods for segment routing of optical signals

A packet optical network may include a packet optical gateway node that is configured to advertise a segment label to other nodes in the network where the segment label is used by a source node in place of a conventional segment routing label when the source node generates the list of labels included in the header of a data packet while establishing a path through a network. The segment label differs from a conventional segment routing label in that the segment label indicates the l0/l1 device or path as opposed to the l2/l3 device indicated by a conventional segment routing label.. ... Infinera Corp

08/10/17 / #20170230371

License management system

In the disclosed method, a current state of a network device indicative of no license key being associated with a network device is stored in a license database. Information indicative of a master state of the network device is received, via an input port, including at least one license key associated with the network device. ... Infinera Corp

07/20/17 / #20170208377

System and method for virtual network topologies and vpn in multi-layer networks

Systems and methods for a multi-layer network to achieve network resource isolation among clients using the same server network, such as a vpn in a multi-layered network and interaction within the node, may include interaction between a server layer (e.g. L0 photonic network) and the client layer (e.g. ... Infinera Corp

07/20/17 / #20170207603

Laser arrays comprising compact lasers with extended tunability

Consistent with the present disclosure, a compact laser with extended tunability (clet) is provided that includes multiple segments or sections, at least one of which is curved, bent or non-collinear with other segments, so that the clet has a compact form factor either as a singular laser or when integrated with other devices. The term clet, as used herein, refers to any of the laser configurations disclosed herein having mirrors and a bent, angled or curved part, portion or section between such mirrors. ... Infinera Corp

07/13/17 / #20170201070

Compact lasers with extended tunability

Consistent with the present disclosure, a compact laser with extended tunability (clet) is provided that includes multiple segments or sections, at least one of which is curved, bent or non-collinear with other segments, so that the clet has a compact form factor either as a singular laser or when integrated with other devices. The term clet, as used herein, refers to any of the laser configurations disclosed herein having mirrors and a bent, angled or curved part, portion or section between such mirrors. ... Infinera Corp

07/06/17 / #20170196123

Heat relay network system for telecommunication equipment

An apparatus, comprising a linecard including a circuit board having a front side connectable to a pluggable optical module and a back side opposite the front side; a heat relay apparatus comprising a heat pipe on the circuit board; a pluggable optical module generating a first amount of heat and being in thermal contact with the heat pipe; and a cooling module including a heat sink in thermal contact with the heat pipe, the cooling module generating a second amount of heat in a range from the first amount of heat to no heat; and wherein heat from the pluggable optical module is transferable through the heat pipe to the cooling module for dispersal from the heat sink.. . ... Infinera Corp

07/06/17 / #20170195757

Systems and methods for multilayer peering

A software defined network, in accordance with some examples of the disclosure, may be used to optimizing traffic across a multi-layer inter-exchange for applications like automated private peering by incorporating packet switching along with otn and/or optical switching into a converged system. Participants in private peering may have ports into the multi-layer inter-exchange, some to the l2 fabric which supports multi-tenant peering and some to the l1 or l0 fabric for higher-performance private peering.. ... Infinera Corp

07/06/17 / #20170195755

Systems and methods for coupling a fiber to a polarization sensitive photonic integrated circuit

The integrated network element offers an efficient fiber-chip coupling of multiple outputs of a polarization sensitive photonic integrated circuit (pic) using a programmable mirror co-packaged with the pic. Efficient fiber-chip coupling requires precise and active alignment of all free-space components. ... Infinera Corp

07/06/17 / #20170195174

Systems and methods for provisioning ethernet services

A centralized network administrator may automatically provision an ethernet circuit between network elements by storing and managing circuit data (managed objects) in one of the network elements (master node) and synchronizing the circuit data among the network nodes in the ethernet circuit path. In addition, multiple network administrators may provision multiple ethernet circuits using the overlapping network elements by managing access to the circuit data in the master node.. ... Infinera Corp

07/06/17 / #20170195080

Systems and methods of time slot allocation for shared mesh protection on bundled links

Systems and methods for time slot allocation of time slots for bundled links in a shared mesh gmpls for protect paths with different of cos may include time slot allocation divided into multiple phases with each phase having some qualification criterion to go to next phase or exit if the criterion is not met. For example, allocation of time slots for a circuit may include three phases—component selection phase, a connection admission phase, and an optimization phase.. ... Infinera Corp

07/06/17 / #20170195062

Photonic integrated circuit

Methods, systems, and apparatus, including an optical receiver including a laser including a gain section; and a first tunable reflector configured to output a reference signal; a first coupler formed over the substrate; a shutter variable optical attenuator formed over the substrate, the shutter variable optical attenuator including an input port configured to receive the first portion of the reference signal from the laser; and an output port configured to provide or to block, based on a control signal, the first portion of the reference signal from the laser; and a second coupler including a first port configured to receive the first portion of the reference signal from the shutter variable optical attenuator; and a second port configured to (i) provide the first portion of the reference signal from the shutter variable optical attenuator to an optical analyzer or (ii) receive a data signal from a transmitter.. . ... Infinera Corp

07/06/17 / #20170195059

Optimized star-8qam performance for binary encoding

Consistent with an aspect of the present disclosure, optical signals are transmitted that are modulated in accordance with an 8qam modulation format. The optical signals carry symbols of data and may be represented by a constellation in the iq plane that includes four inner points that are symmetrically arranged about the origin, and four outer points that are uniformly distributed about the origin, but rotated relative to the inner points. ... Infinera Corp

07/06/17 / #20170195056

Optical communication system

A transmitter is provided that transmits data in either a “quasi-dp-bpsk” (“qdp”) mode or in a dp-qpsk mode. In the qdp mode, data bits are transmitted as changes in phase between first and second phase states along a first axis or as changes in phase between third and fourth phase states along a second axis in the iq plane. ... Infinera Corp

07/06/17 / #20170195055

Photonic integrated circuit

Methods, systems, and apparatus, including an optical receiver including an optical source, including a substrate; a laser provided on the substrate, the laser having first and second sides and outputting first light from the first side and second light from the second side, the first light output from the first side of the laser has a first power and the second light output from the second side has a second power; and a first modulator that receives the first light and a second modulator that receives the second light, such that the power of the first light at an input of the first modulator is substantially equal to the power of the second light at an input of the second modulator.. . ... Infinera Corp

07/06/17 / #20170194764

Tunable waveguide devices

Methods, systems, and apparatus, including a laser including a layer having first and second regions, the first region including a void; a mirror section provided on the layer, the mirror section including a waveguide core, at least part of the waveguide core is provided over at least a portion of the void; a first grating provided on the waveguide core; a first cladding layer provided between the layer and the waveguide core and supported by the second region of the layer; a second cladding layer provided on the waveguide core; and a heat source configured to change a temperature of at least one of the waveguide core and the grating, where an optical mode propagating in the waveguide core of the mirror section does not incur substantial loss due to interaction with portions of the mirror section above and below the waveguide core.. . ... Infinera Corp

07/06/17 / #20170194310

Photonic integrated circuit package

Methods, systems, and apparatus, including a photonic integrated circuit package, including a photonic integrated circuit chip, including an active optical element; an electrode configured to receive an electrical signal; a ground electrode; and a bond contact electrically coupled to the electrode; and an asic chip including circuitry configured to provide the electrical signal; and a bond contact that is electrically coupled to the circuitry; an bridge chip bonded to at least a portion of the photonic integrated circuit chip and at least a portion of the asic chip.. . ... Infinera Corp

07/06/17 / #20170194309

Photonic integrated circuit package

Methods, systems, and apparatus, including a photonic integrated circuit package, including a photonic integrated circuit chip, including a lumped active optical element; an electrode configured to receive an electrical signal, where at least one characteristics of the lumped active optical element is changed based on the electrical signal received by the electrode; a ground electrode; and a bond contact electrically coupled to the electrode; and an interposer bonded to at least a portion of the photonic integrated circuit chip, the interposer including a conductive trace formed on a surface of the interposer, the conductive trace electrically coupled to a source of the electrical signal; a ground trace; and a conductive via bonded with the bond contact of the photonic integrated circuit chip, the conductive via electrically coupled to the conductive trace to provide the electrical signal to the electrode of the photonic integrated circuit chip.. . ... Infinera Corp

07/06/17 / #20170194308

Photonic integrated circuit package

Methods, systems, and apparatus, including a photonic integrated circuit package, including a photonic integrated circuit chip, including multiple electrodes configured to receive the electrical signal, where at least one characteristics of a segment of the traveling wave active optical element is changed based on the electrical signal received by a corresponding electrode of the multiple electrodes; a ground electrode; and multiple bond contacts; and an interposer bonded to at least a portion of the photonic integrated circuit chip, the interposer including a conductive trace formed on a surface of the interposer, the conductive trace electrically coupled to a source of the electrical signal; a ground trace; and multiple conductive vias electrically coupled to the conductive trace, where each conductive via of the multiple conductive vias is bonded with a respective bond contact of the multiple bond contacts of the photonic integrated circuit chip.. . ... Infinera Corp

07/06/17 / #20170192185

Stacked cage optical module heat relay system

An apparatus comprising a cage for pluggable optical modules including a bay having a first port stacked with a second port, the bay having an opening between the first and second port; a heat collector module in the opening comprising a first contact plate adjacent to the first port bottom and provided in the first port and configured to contact a first optical module in the first port, a second contact plate adjacent to the second port top and provided in the second port and configured to contact a second optical module insertable in the second port, a cold plate between the first and second contact plates, compressible thermal material layers between the contact plates and the cold plate; and a heat pipe having a first portion in thermal contact with the cold plate and a second portion extending beyond the stacked cage and in thermal contact with a radiator.. . ... Infinera Corp

07/06/17 / #20170192184

Optical module blind mating heat relay system

An optical module blind mating heat relay system, comprising a linecard comprising a circuit board; a heat relay apparatus comprising a first heat pipe on the circuit board, a radiator attached to the circuit board and in thermal contact with the first heat pipe; a heat relay receiver assembly comprising a receiver housing having a slot and a contact slug connected to the receiver housing and in thermal contact with the first heat pipe; a pluggable optical module removably engaged with the linecard; and a second heat pipe having a pluggable optical module portion contacting the pluggable optical module and having a plug portion removably positioned within the slot of the receiver housing, the plug portion in thermal contact with the contact slug, the second heat pipe removable from the receiver housing while the linecard is receiving electrical power.. . ... Infinera Corp

07/06/17 / #20170192173

Photonic integrated circuit package

Consistent with the present disclosure, a coherent receiver pic may be provided having waveguides that may be routed in a substantially u-shaped bend to feed both an incoming signal and a local oscillator signal into a 90-degree optical hybrid circuit, which may include a multi-mode interference (mmi) device. As a result, one or more local oscillator lasers may be provided between optical hybrid circuits in certain examples, and, in other examples, optical waveguides feeding optical signals to the optical hybrids are provided between the optical hybrid circuits. ... Infinera Corp

06/08/17 / #20170163001

Photonic integrated circuit including compact lasers with extended tunability

Consistent with the present disclosure, a compact laser with extended tunability (clet) is provided that includes multiple segments or sections, at least one of which is curved, bent or non-collinear with other segments, so that the clet has a compact form factor either as a singular laser or when integrated with other devices. The term clet, as used herein, refers to any of the laser configurations disclosed herein having mirrors and a bent, angled or curved part, portion or section between such mirrors. ... Infinera Corp

06/08/17 / #20170163000

Photonic integrated circuit including compact lasers with extended tunability

Consistent with the present disclosure, a compact laser with extended tunability (clet) is provided that includes multiple segments or sections, at least one of which is curved, bent or non-collinear with other segments, so that the clet has a compact form factor either as a singular laser or when integrated with other devices. The term clet, as used herein, refers to any of the laser configurations disclosed herein having mirrors and a bent, angled or curved part, portion or section between such mirrors. ... Infinera Corp

05/18/17 / #20170142207

Systems and methods for many-to-one bi-directional auto-discovery

A method of many-to-one auto-discovery between modules includes: a source (sender) module sends the same source-id on all its connected ports (many). The module may not know on which port the id is sent. ... Infinera Corp

03/30/17 / #20170093705

Systems and methods for latency based routing

A method for determining a path through a communication network may include determining a first and second path from a first device to a second device based on path latency, removing from further consideration the first or the second path based on which has the highest path latency of the first and second path, and determining path candidates until a path candidate is found with the lowest differential latency between the determined first or second path and the path candidate.. . ... Infinera Corp

03/16/17 / #20170078774

Ospfte extension to support gmpls for flexible grid

A method and system are disclosed in which a link state advertisement message (lsa) conforming to a generalized multiprotocol label switching (gmpls) routing protocol is generated and transmitted. The lsa is associated with a te link between a transmit node and a receive node in a network. ... Infinera Corp

02/16/17 / #20170048140

Dynamic lsp resizing in a gmpls mesh network

A method to dynamically resize an lsp without releasing it includes: establishing a first path through a network from a first device to a second device; receiving a request to resize the first path; establishing a second path identical to the first path; simultaneously transmitting communication signals on the first path and the second path; and switching all communication signals from the first path to the second path.. . ... Infinera Corp

02/16/17 / #20170047992

Wavelength collision detection in carrier multiplexers

This disclosure relates to optical line system equipment, which enables wavelength addition for long haul transmission. The system is configured to prevent contention of wavelengths added into a multiplexer. ... Infinera Corp

02/09/17 / #20170041690

Providing ownership-based view and management of shared optical network resources

A device may receive optical network information associated with an optical network, and may determine a user associated with network resources of the optical network. The network resources may be shared for use by multiple users, including the user. ... Infinera Corp

02/02/17 / #20170033999

Digital link viewer with paging for super-channels

A device may receive optical network information associated with a plurality of super-channels. Each super-channel, of the plurality of super-channels, may include a plurality of optical channels transported as a single optical channel. ... Infinera Corp

02/02/17 / #20170033864

Digital link viewer for data center interconnect nodes

A device may receive optical network information associated with a first optical node and a second optical node. The first optical node may be associated with a first group of optical devices. ... Infinera Corp

01/19/17 / #20170019204

Wavelength selective switch (wss) for shaping optical signals

A device may perform a set of sample measurements of a set of slices of spectrum utilized by an input optical signal. The device may perform an analysis of the input optical signal to determine an attenuation profile. ... Infinera Corp

01/12/17 / #20170012933

Systems, methods, and apparatus for arp mediation

An exemplary network controller may be configured to perform arp mediation through passively learning mac addresses on client sides and keeping track of ip/mac/attachment point associations, hijacking arp requests received by the core nodes through a packet_in operation or a redirection to other agents, injecting proxy arp replies that provide target mac information without the actual target being involved, and possibly programming the network nodes with the static arp responding rule for a specified duration.. . ... Infinera Corp

01/12/17 / #20170012900

Systems, methods, and apparatus for verification of a network path

An exemplary network controller may be configured to perform path verification using a special packet prepared by the controller. The controller initiates the special packet at the head end of the service. ... Infinera Corp

01/12/17 / #20170012866

Systems, methods, and apparatus for forwarding a data flow

An exemplary network controller may be configured to receive a data flow request from a first node and, in response to the data flow request, send a flow entry to each of the nodes along a data flow path for the data flow. The flow entries may be sent from the last node in the path first and the last entry may be sent to the first node.. ... Infinera Corp








ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



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