Patents by Inventor Loren Berg
Loren Berg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11463189Abstract: A method of loading a fiber optic transport system includes detecting optical power in a frequency sub-band of optical spectrum, wherein the frequency sub-band includes data-bearing channels and at least one control channel; measuring optical power in the frequency sub-band; and adjusting optical power of the at least one control channel based on the measured optical power, wherein the optical power is adjusted through one of changing a current of control channel lasers and controlling a set of fast optical attenuators.Type: GrantFiled: November 5, 2018Date of Patent: October 4, 2022Assignee: Ciena CorporationInventors: David Boertjes, Loren Berg
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Patent number: 11063683Abstract: A node configured to operate in an optical network includes P switching planes interconnected by an S×S cross-plane switch, P>1; and Ni degrees per switching plane Pi where i=1 to P, each degree formed by corresponding degree components having R ports, wherein a first set of ports of the R ports is for intra-plane switching, a second set of ports of the R ports is for inter-plane switching, and a third set of ports of the R ports is for in-plane add/drop. S is greater than or equal to a sum of a number of degrees across all of the P switching planes. R is greater than or equal to a sum of the first set of ports, the second set of ports, and the third set of ports.Type: GrantFiled: June 12, 2020Date of Patent: July 13, 2021Assignee: Ciena CorporationInventors: Kevan Peter Jones, Loren Berg
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Patent number: 10784981Abstract: A system for loading a fiber optic transport system includes a wavelength selective switch (WSS) having inputs and an output connected to an optical fiber, wherein the inputs are connected to one or more lines having data-bearing channels thereon; and an amplified spontaneous emission (ASE) generator connected to one of the inputs of the WSS, wherein the WSS is configured to perform a channel addition through substitution of an ASE channel from the ASE generator for a data-bearing channel, and a channel deletion through substitution of a data-bearing channel for an ASE channel from the ASE generator, and wherein, to limit perturbations on the optical fiber due to channel additions and deletions, the WSS is configured to limit a number of channels that are switched at a same time for a set of channel additions or deletions.Type: GrantFiled: April 1, 2020Date of Patent: September 22, 2020Assignee: Ciena CorporationInventors: David Boertjes, Loren Berg
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Publication number: 20200228227Abstract: A system for loading a fiber optic transport system includes a wavelength selective switch (WSS) having inputs and an output connected to an optical fiber, wherein the inputs are connected to one or more lines having data-bearing channels thereon; and an amplified spontaneous emission (ASE) generator connected to one of the inputs of the WSS, wherein the WSS is configured to perform a channel addition through substitution of an ASE channel from the ASE generator for a data-bearing channel, and a channel deletion through substitution of a data-bearing channel for an ASE channel from the ASE generator, and wherein, to limit perturbations on the optical fiber due to channel additions and deletions, the WSS is configured to limit a number of channels that are switched at a same time for a set of channel additions or deletions.Type: ApplicationFiled: April 1, 2020Publication date: July 16, 2020Inventors: David Boertjes, Loren Berg
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Patent number: 10263386Abstract: A Raman pump system for a Raman amplifier includes a plurality of primary Raman pumps each at a corresponding wavelength; and at least one pair of redundant Raman pumps including a primary redundant Raman pump at a primary wavelength and a secondary redundant Raman pump at a secondary wavelength, wherein only one of the primary redundant Raman pump and the secondary redundant Raman pump is employed based on a zero dispersion wavelength location of a fiber over which the Raman pump system operates. The secondary wavelength can be separated from the primary wavelength by at least 2 nm or 3 nm and no more than 10 nm. The Raman pump system can provide amplification across both the C Band and the L Band.Type: GrantFiled: April 13, 2018Date of Patent: April 16, 2019Assignee: Ciena CorporationInventors: Balakrishnan Sridhar, Jean-Luc Archambault, Loren Berg
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Publication number: 20190074924Abstract: A method of loading a fiber optic transport system includes detecting optical power in a frequency sub-band of optical spectrum, wherein the frequency sub-band includes data-bearing channels and at least one control channel; measuring optical power in the frequency sub-band; and adjusting optical power of the at least one control channel based on the measured optical power, wherein the optical power is adjusted through one of changing a current of control channel lasers and controlling a set of fast optical attenuators.Type: ApplicationFiled: November 5, 2018Publication date: March 7, 2019Inventors: David Boertjes, Loren Berg
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Patent number: 10153860Abstract: A method of loading a fiber optic transport system includes adding one or more control channels to an optical fiber having one or more channels, wherein each of the control channels comprises a pair of signals that are cross-polarized and each of the pair of signals is at a different frequency from one another; measuring optical power on the optical fiber; and adjusting optical power of the one or more control channels based on the measured optical power.Type: GrantFiled: August 29, 2017Date of Patent: December 11, 2018Assignee: Ciena CorporationInventors: David Boertjes, Loren Berg
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Patent number: 9853762Abstract: Systems and methods of sharing optical spectrum between a plurality of users of a submarine optical system includes receiving one or more optical signals from the plurality of users of the submarine optical system, wherein each of the plurality of users are assigned a slice of optical spectrum on the submarine optical system; monitoring each of the one or more optical signals to determine compliance with one or more constraints; and adding the one or more optical signals to the submarine optical system if compliant with the one or more constraints.Type: GrantFiled: December 4, 2014Date of Patent: December 26, 2017Assignee: Ciena CorporationInventors: Darwin Bruce Evans, Robert Hadaway, Loren Berg
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Publication number: 20170359141Abstract: A method of loading a fiber optic transport system includes adding one or more control channels to an optical fiber having one or more channels, wherein each of the control channels comprises a pair of signals that are cross-polarized and each of the pair of signals is at a different frequency from one another; measuring optical power on the optical fiber; and adjusting optical power of the one or more control channels based on the measured optical power.Type: ApplicationFiled: August 29, 2017Publication date: December 14, 2017Inventors: David BOERTJES, Loren BERG
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Patent number: 9755776Abstract: A method and system for transient and switching stabilization of a fiber optic transport system. One or more data-bearing channels are coupled to an optical fiber. The data-bearing channels are distributed among a plurality of frequency sub-bands. A set of control channels is also coupled to the optical fiber. Each control channel includes a pair of signals at separate frequencies. There is at least one control channel in each of the plurality of frequency sub-bands. The pair of signals of a control channel are cross-polarized. Optical power in at least one of the plurality of sub-bands is measured. Responsive to the measured optical power, the optical power of a control channel is adjusted to maintain a substantially constant power of a sub-band that contains the adjusted control channel.Type: GrantFiled: March 2, 2015Date of Patent: September 5, 2017Assignee: Ciena CorporationInventors: David Boertjes, Loren Berg
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Publication number: 20160164597Abstract: Systems and methods of sharing optical spectrum between a plurality of users of a submarine optical system includes receiving one or more optical signals from the plurality of users of the submarine optical system, wherein each of the plurality of users are assigned a slice of optical spectrum on the submarine optical system; monitoring each of the one or more optical signals to determine compliance with one or more constraints; and adding the one or more optical signals to the submarine optical system if compliant with the one or more constraints.Type: ApplicationFiled: December 4, 2014Publication date: June 9, 2016Applicant: CIENA CORPORATIONInventors: Darwin Bruce EVANS, Robert HADAWAY, Loren BERG
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Publication number: 20150171987Abstract: A method and system for transient and switching stabilization of a fiber optic transport system. One or more data-bearing channels are coupled to an optical fiber. The data-bearing channels are distributed among a plurality of frequency sub-bands. A set of control channels is also coupled to the optical fiber. Each control channel includes a pair of signals at separate frequencies. There is at least one control channel in each of the plurality of frequency sub-bands. The pair of signals of a control channel are cross-polarized. Optical power in at least one of the plurality of sub-bands is measured. Responsive to the measured optical power, the optical power of a control channel is adjusted to maintain a substantially constant power of a sub-band that contains the adjusted control channel.Type: ApplicationFiled: March 2, 2015Publication date: June 18, 2015Inventors: David BOERTJES, Loren BERG
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Patent number: 8971705Abstract: A method and system for transient and switching stabilization of a fiber optic transport system. One or more data-bearing channels are coupled to an optical fiber. The data-bearing channels are distributed among a plurality of frequency sub-bands. A set of control channels is also coupled to the optical fiber. Each control channel includes a pair of signals at separate frequencies. There is at least one control channel in each of the plurality of frequency sub-bands. The pair of signals of a control channel are cross-polarized. Optical power in at least one of the plurality of sub-bands is measured. Responsive to the measured optical power, the optical power of a control channel is adjusted to maintain a substantially constant power of a sub-band that contains the adjusted control channel.Type: GrantFiled: September 2, 2011Date of Patent: March 3, 2015Assignee: Ciena CorporationInventors: David Boertjes, Loren Berg
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Publication number: 20130058647Abstract: A method and system for transient and switching stabilization of a fiber optic transport system. One or more data-bearing channels are coupled to an optical fiber. The data-bearing channels are distributed among a plurality of frequency sub-bands. A set of control channels is also coupled to the optical fiber. Each control channel includes a pair of signals at separate frequencies. There is at least one control channel in each of the plurality of frequency sub-bands. The pair of signals of a control channel are cross-polarized. Optical power in at least one of the plurality of sub-bands is measured. Responsive to the measured optical power, the optical power of a control channel is adjusted to maintain a substantially constant power of a sub-band that contains the adjusted control channel.Type: ApplicationFiled: September 2, 2011Publication date: March 7, 2013Applicant: CIENA CORPORATIONInventors: David BOERTJES, Loren BERG
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Patent number: 8364036Abstract: An optical control system is described which is capable of maintaining and optimizing a fiber-optic transport system within it's domain of control while interacting with other optical systems which are controlled independently. This allows the optical system to be incorporated as a building block into a larger optical network in a relatively arbitrary fashion. This provides an underlying control system for a non-linear system like optics network that is flexible and extensible.Type: GrantFiled: April 27, 2007Date of Patent: January 29, 2013Assignee: Ciena CorporationInventors: David Boertjes, David Miedema, Loren Berg, Frederic Poulin, David Bownass, Robert Palmer, Mark Hinds, Michael Hiridjee, Saeid Seydnejad
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Patent number: 8260141Abstract: A system for enabling reconfiguration of a Wavelength Division Multiplexed (WDM) optical communications network. A plurality of channel transmitters are provided for generating respective optical signals within corresponding wavelength channels of the network. A broadband light source generates a broadband continuous wave light having a bandwidth corresponding to a channel band of the network. A wavelength selective switch includes a first switch port connected to receive optical signals from the channel transmitters. A second switch port is connected to receive the broadband continuous wave light from the broadband light source. The wavelength selective switch is configured to comb the broadband continuous wave light into a plurality of narrowband lights respectively corresponding with wavelength channels of the network. A common-OUT port of the wavelength selective switch outputs a WDM signal for transmission through a downstream fiber span of the network.Type: GrantFiled: March 12, 2010Date of Patent: September 4, 2012Assignee: Ciena CorporationInventor: Loren Berg
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Publication number: 20110222851Abstract: A system for enabling reconfiguration of a Wavelength Division Multiplexed (WDM) optical communications network. A plurality of channel transmitters are provided for generating respective optical signals within corresponding wavelength channels of the network. A broadband light source generates a broadband continuous wave light having a bandwidth corresponding to a channel band of the network. A wavelength selective switch includes a first switch port connected to receive optical signals from the channel transmitters. A second switch port is connected to receive the broadband continuous wave light from the broadband light source. The wavelength selective switch is configured to comb the broadband continuous wave light into a plurality of narrowband lights respectively corresponding with wavelength channels of the network. A common-OUT port of the wavelength selective switch outputs a WDM signal for transmission through a downstream fibre span of the network.Type: ApplicationFiled: March 12, 2010Publication date: September 15, 2011Applicant: NORTEL NETWORKS LIMITEDInventor: Loren BERG
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Publication number: 20090116837Abstract: An optical control system is described which is capable of maintaining and optimizing a fiber-optic transport system within it's domain of control while interacting with other optical systems which are controlled independently. This allows the optical system to be incorporated as a building block into a larger optical network in a relatively arbitrary fashion. This provides an underlying control system for a non-linear system like optics network that is flexible and extensible.Type: ApplicationFiled: April 27, 2007Publication date: May 7, 2009Applicant: NORTEL NETWORKS LIMITEDInventors: David W.S Boertjes, David Miedema, Loren Berg, Frederic Poulin, David Bownass, Robert Palmer, Mark Hinds, Michael Hiridjee, Saeid Seydnejad
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Patent number: 6757098Abstract: A modular bidirectional optical amplification system includes a multiwavelength dual amplifier building block, a multiwavelength unidirectional booster amplifier BB, a unidirectional and a bidirectional Optical Service Channel (OSC) BB, an Intelligent Optical Terminal Accessway (IOTA) module, and an interleaved filter BB. The dual amplifier BB is available in a C-band version, an E-band version and a hybrid version, and provides unidirectional or bidirectional multichannel amplification. The booster amplifier is available in a C-band version, an E-band version and in a booster plus variant; one for the C-band and one for E-band. The unidirectional and bidirectional OSC BBs provide a means for OAM&P functionality to the optical network. The IOTA BB provides multiplexing and demultiplexing, and the filter BB provides separation of the signal into grid-1 and grid-2 channels.Type: GrantFiled: March 27, 2001Date of Patent: June 29, 2004Assignee: Nortel Network LimitedInventors: Loren Berg, Mark R. Hinds, Robert W. Keys, Gregory D. May, Alan G. Solheim, Stephane St-Laurent
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Publication number: 20030151802Abstract: A modular bidirectional optical amplification system includes a multiwavelength dual amplifier building block, a multiwavelength unidirectional booster amplifier BB, a unidirectional and a bidirectional Optical Service Channel (OSC) BB, an Intelligent Optical Terminal Accessway (IOTA) module, and an interleaved filter BB. The dual amplifier BB is available in a C-band version, an E-band version and a hybrid version, and provides unidirectional or bidirectional multichannel amplification. The booster amplifier is available in a C-band version, an E-band version and in a booster plus variant; one for the C-band and one for E-band. The unidirectional and bidirectional OSC BBs provide a means for OAM&P functionality to the optical network. The IOTA BB provides multiplexing and demultiplexing, and the filter BB provides separation of the signal into grid-1 and grid-2 channels.Type: ApplicationFiled: March 27, 2001Publication date: August 14, 2003Inventors: Loren Berg, Mark R. Hinds, Robert W. Keys, Gregory D. May, Alan G. Solheim, Stephane St-Laurent