公开(公告)号：US11044015B2

公开(公告)日：2021-06-22

申请号：US16358192

申请日：2019-03-19

Applicant: Google LLC

Inventor： Rene Schmogrow ,  Ralph Hofmeister ,  Vijayanand Vusirikala ,  Valey Kamalov ,  Mattia Cantono

IPC: H04B10/291 ,  H04B10/80 ,  G02B6/30 ,  G02B6/44

Abstract: Systems and methods of undersea optical communication are provided. An undersea optical amplifier assembly can include a water-tight housing and a photonic integrated circuit disposed within the housing. The photonic integrated circuit includes a plurality of optical fiber inputs, each configured to receive an end of a respective optical fiber of a first fiber optic cable bundle, and a plurality of optical fiber outputs. Each optical fiber output corresponds to a respective optical fiber input to form a fiber optic input-output pair, and is configured to receive an end of a respective optical fiber of a second fiber optic cable bundle. The photonic integrated circuit includes an optical amplifier optically coupled to each respective fiber optic input-output pair. The housing includes a first water-tight access port configured to receive the first fiber optic cable bundle, and a second water-tight access port configured to receive a second fiber optic cable bundle.

公开(公告)号：US20230324573A1

公开(公告)日：2023-10-12

申请号：US18208498

申请日：2023-06-12

Applicant: Google LLC

Inventor： Valey Kamalov ,  Mattia Cantono ,  Vijayanand Vusirikala ,  Massimiliano Salsi ,  Matthew Eldred Newland

IPC: G01V1/00 ,  G01H9/00 ,  G01V1/28 ,  G01V1/30

CPC classification number: G01V1/008 ,  G01H9/004 ,  G01V1/282 ,  G01V1/307

Abstract: Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data.

公开(公告)号：US11385365B2

公开(公告)日：2022-07-12

申请号：US16794373

申请日：2020-02-19

Applicant: Google LLC

Inventor： Valey Kamalov ,  Mattia Cantono ,  Vijayanand Vusirikala ,  Massimiliano Salsi ,  Matthew Eldred Newland

IPC: G01V1/00 ,  G01H9/00 ,  G01V1/28 ,  G01V1/30

Abstract: Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data.

公开(公告)号：US20220291404A1

公开(公告)日：2022-09-15

申请号：US17752969

申请日：2022-05-25

Applicant: Google LLC

Inventor： Valey Kamalov ,  Mattia Cantono ,  Vijayanand Vusirikala ,  Massimiliano Salsi ,  Matthew Eldred Newland

IPC: G01V1/00 ,  G01H9/00 ,  G01V1/28 ,  G01V1/30

Abstract: Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data.

公开(公告)号：US20200162163A1

公开(公告)日：2020-05-21

申请号：US16358192

申请日：2019-03-19

Applicant: Google LLC

Inventor： Rene Schmogrow ,  Ralph Hofmeister ,  Vijayanand Vusirikala ,  Valey Kamalov ,  Mattia Cantono

IPC: H04B10/291 ,  G02B6/44 ,  G02B6/30 ,  H04B10/80

Abstract: Systems and methods of undersea optical communication are provided. An undersea optical amplifier assembly can include a water-tight housing and a photonic integrated circuit disposed within the housing. The photonic integrated circuit includes a plurality of optical fiber inputs, each configured to receive an end of a respective optical fiber of a first fiber optic cable bundle, and a plurality of optical fiber outputs. Each optical fiber output corresponds to a respective optical fiber input to form a fiber optic input-output pair, and is configured to receive an end of a respective optical fiber of a second fiber optic cable bundle. The photonic integrated circuit includes an optical amplifier optically coupled to each respective fiber optic input-output pair. The housing includes a first water-tight access port configured to receive the first fiber optic cable bundle, and a second water-tight access port configured to receive a second fiber optic cable bundle.

公开(公告)号：US11693137B2

公开(公告)日：2023-07-04

申请号：US17752969

申请日：2022-05-25

Applicant: Google LLC

Inventor： Valey Kamalov ,  Mattia Cantono ,  Vijayanand Vusirikala ,  Massimiliano Salsi ,  Matthew Eldred Newland

IPC: G01V1/00 ,  G01H9/00 ,  G01V1/28 ,  G01V1/30

CPC classification number: G01V1/008 ,  G01H9/004 ,  G01V1/282 ,  G01V1/307

Abstract: Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data.

公开(公告)号：US20240427039A1

公开(公告)日：2024-12-26

申请号：US18828596

申请日：2024-09-09

Applicant: Google LLC.

Inventor： Valey Kamalov ,  Matthew Eldred Newland ,  Massimiliano Salsi ,  Mattia Cantono ,  Vijayanand Vusirikala

IPC: G01V1/01 ,  G01H9/00 ,  G01V1/28 ,  G01V1/30

Abstract: Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data.

公开(公告)号：US12117574B2

公开(公告)日：2024-10-15

申请号：US18208498

申请日：2023-06-12

Applicant: Google LLC

Inventor： Valey Kamalov ,  Mattia Cantono ,  Vijayanand Vusirikala ,  Massimiliano Salsi ,  Matthew Eldred Newland

IPC: G01V1/00 ,  G01H9/00 ,  G01V1/01 ,  G01V1/28 ,  G01V1/30

CPC classification number: G01V1/01 ,  G01H9/004 ,  G01V1/282 ,  G01V1/307

Abstract: Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data.

公开(公告)号：US20210255344A1

公开(公告)日：2021-08-19

申请号：US16794373

申请日：2020-02-19

Applicant: Google LLC

Inventor： Valey Kamalov ,  Mattia Cantono ,  Vijayanand Vusirikala ,  Massimiliano Salsi ,  Matthew Eldred Newland

IPC: G01V1/00 ,  G01V1/28 ,  G01V1/30 ,  G01H9/00

Abstract: Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data.

公开(公告)号：US10574379B2

公开(公告)日：2020-02-25

申请号：US16219241

申请日：2018-12-13

Applicant: Google LLC

Inventor： Vinayak Dangui ,  Vijayanand Vusirikala ,  Matthew Newland

IPC: H04B10/00 ,  H04J14/02 ,  H04B10/294 ,  H04B10/291 ,  H04Q11/00 ,  H04B10/564 ,  H04J14/00

Abstract: A reconfigurable optical add/drop multiplexer (ROADM) includes a plurality of interconnected ROADM blocks. Each ROADM block includes an ingress switchable-gain amplifier, an output power detector coupled to an output of the ingress switchable gain amplifier, and a wavelength-selective switch coupled to the output of the ingress switchable gain amplifier. Each ROADM block includes a plurality of add/drop blocks coupled to the wavelength-selective switches of the plurality of ROADM blocks. The ROADM includes a controller configured to receive an indication of an output signal power from the output power detector and adjust gain and equalization parameters of the ingress switchable-gain amplifier based on the received indication of the output signal power.