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1.发明公开公开(公告)号：US20240259101A1
公开(公告)日：2024-08-01
申请号：US18545427
申请日：2023-12-19
申请人： Infinera Corp.
IPC分类号： H04B10/293 , H04B10/272
CPC分类号： H04B10/2933 , H04B10/272
摘要： Disclosed herein are methods and systems for optimizing signal quality in an optical network having two or more hub nodes continuously outputting optical signals to a plurality of leaf nodes. Each of the plurality of leaf nodes may receive a combined optical signal from the hub nodes and determine an optical power and a signal quality of one optical subcarrier group and send a correction signal to the hub node that sent the subcarrier group. The hub nodes may send a power optimization request comprising the optical power and signal quality of each subcarrier group to a network controller. The network controller may use the optical power and signal quality to determine a power update for an optical power of the subcarrier group(s) and send the power update to the hub node transmitting the subcarrier group. The hub node may adjust the optical power based on the power update.
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公开(公告)号：US20240048245A1
公开(公告)日：2024-02-08
申请号：US17817234
申请日：2022-08-03
申请人： Infinera Corp.
发明人： Magnus Olson , Amir Rashidinejad , Jia Ge
CPC分类号： H04B10/63 , H04B10/40 , H04W72/0453
摘要： Disclosed herein are coherent transceivers and methods of using the same. One exemplary coherent transceiver may be provided with a coherent transmitter operable to transmit a first optical signal and a coherent receiver comprising a processor executing processor-executable code that when executed causes the processor to receive a second optical signal, the second optical signal being a reflection of the first optical signal, analyze the second optical signal to determine a first parameter indicative of a chromatic dispersion of the second optical signal, and determine a second parameter based on the first parameter. The second parameter may be indicative of a distance travelled by the first optical signal and the second optical signal through one or more fiber optic link having a known first location.
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公开(公告)号：US12063074B2
公开(公告)日：2024-08-13
申请号：US17817253
申请日：2022-08-03
申请人： Infinera Corp.
发明人： Magnus Olson , Amir Rashidinejad , Jia Ge
IPC分类号： H04B10/63 , H04B10/40 , H04W72/0453
CPC分类号： H04B10/63 , H04B10/40 , H04W72/0453
摘要： A method is described in which a coherent transmitter transmits a first optical signal having customer data through a fiber optic link. A control signal is provided to the coherent transmitter to cause the coherent transmitter to transmit a second optical signal devoid of customer data. A reflection of the second optical signal is detected via the coherent receiver. Then, a chromatic dispersion of the reflection of the second optical signal is determined and correlated with known parameters indicative of an amount of chromatic dispersion per unit length of the fiber optic link to determine a distance travelled by the second optical signal.
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公开(公告)号：US20240048246A1
公开(公告)日：2024-02-08
申请号：US17817253
申请日：2022-08-03
申请人： Infinera Corp
发明人： Magnus Olson , Amir Rashidinejad , Jia Ge
CPC分类号： H04B10/63 , H04W72/0453 , H04B10/40
摘要： A method is described in which a coherent transmitter transmits a first optical signal having customer data through a fiber optic link. A control signal is provided to the coherent transmitter to cause the coherent transmitter to transmit a second optical signal devoid of customer data. A reflection of the second optical signal is detected via the coherent receiver. Then, a chromatic dispersion of the reflection of the second optical signal is determined and correlated with known parameters indicative of an amount of chromatic dispersion per unit length of the fiber optic link to determine a distance travelled by the second optical signal.
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5.发明公开公开(公告)号：US20240243812A1
公开(公告)日：2024-07-18
申请号：US18508131
申请日：2023-11-13
申请人： Infinera Corp.
IPC分类号： H04B10/40 , H04B10/27 , H04B10/564 , H04B10/61
CPC分类号： H04B10/40 , H04B10/27 , H04B10/564 , H04B10/61
摘要： Disclosed herein are methods and systems for optimizing an optical signal in an optical network having a leaf node with a coherent optical transceiver configured to receive an optical signal continuously transmitted at a first output power from a hub node over a link. The leaf node may be provided with signal quality correction circuitry configured to determine a signal quality of the optical signal and send the signal quality to a processor of the hub node. The processor of the hub node may be configured to compare the signal quality of the optical signal to a target signal quality margin, determine that the signal quality is outside the target signal quality margin, adjust the first output power of the optical signal to a second output power different than the first output power, and continuously transmit the optical signal at the second output power.
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6.发明公开公开(公告)号：US20240163591A1
公开(公告)日：2024-05-16
申请号：US18545463
申请日：2023-12-19
申请人： Infinera Corp.
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0062 , H04Q2011/0084 , H04Q2011/0086
摘要： Disclosed herein are methods and systems for optimizing an optical signal in an optical network having a hub node configured to receive an optical signal comprising a plurality of subcarrier groups each having a signal quality and a transmission output power, including a method that may comprise: determining, a first subcarrier group of the plurality of subcarrier groups with a lowest signal quality lower than a required signal quality margin; determining, a second subcarrier group of the plurality of subcarrier groups that has a highest transmission output power margin, Determining, that the transmission output power margin of the second subcarrier group is above a level needed to increase the lowest signal quality by a required signal quality increase; and sending signals to a first leaf node and a second leaf node causing the first leaf node to swap transmission positions of the first subcarrier group and the second subcarrier group.
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公开(公告)号：US11799558B2
公开(公告)日：2023-10-24
申请号：US17375575
申请日：2021-07-14
申请人： Infinera Corp.
发明人： Amir Rashidinejad , Wenbo Gao
IPC分类号： H04B10/548 , H04B10/50 , H04B10/58
CPC分类号： H04B10/548 , H04B10/503 , H04B10/58
摘要： An optical network component, system, and method are herein described. The system and method include introducing an amplitude modulated (AM) tone and data to an optical modulator generating a modulated optical signal, measuring an amplitude response of the AM tone within the modulated optical signal, calculating a frequency response based on the amplitude response, and calibrating the optical modulator with the frequency response.
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公开(公告)号：US11483069B2
公开(公告)日：2022-10-25
申请号：US17375867
申请日：2021-07-14
申请人： Infinera Corp.
发明人： Amir Rashidinejad , Matthew Fisher
IPC分类号： H04B10/04 , H04B10/079 , H04B10/564 , H04B10/50
摘要： An optical network component and method are herein described. The system and method include determining a first power of an optical modulator using a first photodetector and a second power of the transmitter using a second photodetector, determining a contrast ratio based on the first power and the second power, and determining a modulation loss based on the contrast ratio.
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公开(公告)号：US20220021462A1
公开(公告)日：2022-01-20
申请号：US17375575
申请日：2021-07-14
申请人： Infinera Corp.
发明人： Amir Rashidinejad , Wenbo Gao
IPC分类号： H04B10/548 , H04B10/58 , H04B10/50
摘要： An optical network component, system, and method are herein described. The system and method include introducing an AM tone and data to an optical modulator generating a modulated optical signal, measuring an amplitude response of the AM tone within the modulated optical signal, calculating a frequency response based on the amplitude response, and calibrating the optical modulator with the frequency response.
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公开(公告)号：US20220021450A1
公开(公告)日：2022-01-20
申请号：US17375867
申请日：2021-07-14
申请人： Infinera Corp.
发明人： Amir Rashidinejad , Matthew Fisher
IPC分类号： H04B10/079 , H04B10/50 , H04B10/564
摘要： An optical network component and method are herein described. The system and method include determining a first power of an optical modulator using a first photodetector and a second power of the transmitter using a second photodetector, determining a contrast ratio based on the first power and the second power, and determining a modulation loss based on the contrast ratio.
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