公开(公告)号：US12063074B2

公开(公告)日：2024-08-13

申请号：US17817253

申请日：2022-08-03

Applicant: Infinera Corp.

Inventor： Magnus Olson ,  Amir Rashidinejad ,  Jia Ge

IPC: H04B10/63 ,  H04B10/40 ,  H04W72/0453

CPC classification number: H04B10/63 ,  H04B10/40 ,  H04W72/0453

Abstract: 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.

公开(公告)号：US20240048246A1

公开(公告)日：2024-02-08

申请号：US17817253

申请日：2022-08-03

Applicant: Infinera Corp

Inventor： Magnus Olson ,  Amir Rashidinejad ,  Jia Ge

IPC: H04B10/63 ,  H04W72/04 ,  H04B10/40

CPC classification number: H04B10/63 ,  H04W72/0453 ,  H04B10/40

Abstract: 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.

公开(公告)号：US20240048245A1

公开(公告)日：2024-02-08

申请号：US17817234

申请日：2022-08-03

Applicant: Infinera Corp.

Inventor： Magnus Olson ,  Amir Rashidinejad ,  Jia Ge

IPC: H04B10/63 ,  H04B10/40 ,  H04W72/04

CPC classification number: H04B10/63 ,  H04B10/40 ,  H04W72/0453

Abstract: 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.