公开(公告)号：US09184834B1

公开(公告)日：2015-11-10

申请号：US13730193

申请日：2012-12-28

Applicant: Juniper Networks, Inc.

Inventor： Bo Zhang ,  Theodore J. Schmidt ,  Steven Keck ,  Christian Malouin

IPC: H04B10/04 ,  H04B10/077 ,  H04B10/556 ,  H04L27/36 ,  H04B10/50

CPC classification number: H04L27/36 ,  H04B10/0775 ,  H04B10/5053 ,  H04B10/5057 ,  H04B10/50572 ,  H04B10/50577 ,  H04B10/541 ,  H04B10/5561 ,  H04L27/364

Abstract: In some embodiments, an apparatus includes an optical transmitter system that defines an interferometric structure and has an in-phase portion and a quadrature portion. The optical transmitter system has a transmission configuration and a calibration configuration. The interferometric structure can produce an output associated with a skew between the in-phase portion and the quadrature portion of the optical transmitter system when in the calibration configuration. The skew is associated with a digital domain, an analog domain and an optical domain of the optical transmitter system.

Abstract translation: 在一些实施例中，一种装置包括限定干涉结构并具有同相部分和正交部分的光发送器系统。 光发射机系统具有传输配置和校准配置。 当在校准配置中时，干涉测量结构可以产生与光发射机系统的同相部分和正交部分之间的偏斜相关联的输出。 偏斜与光发射机系统的数字域，模拟域和光域相关联。

公开(公告)号：US20190165864A1

公开(公告)日：2019-05-30

申请号：US16263897

申请日：2019-01-31

Applicant: Juniper Networks, Inc.

Inventor： Bo ZHANG ,  Theodore J. Schmidt ,  Christian Malouin

IPC: H04B10/564 ,  H04J14/06 ,  H04B10/556 ,  H04B10/079 ,  H04B10/50 ,  H04B10/54 ,  H04B10/532

Abstract: A system is configured to determine a first power level of a first signal output from a first modulator, and determine a second power level of a second signal output from a second modulator. The first signal may include a first optical signal associated with a particular polarization orientation, and the second signal may include a second optical signal associated with the particular polarization orientation. The system is configured to determine a relationship between the first power level and the second power level, and to set, based on the relationship between the first power level and the second power level, a reverse bias voltage associated with the first modulator, where the reverse bias voltage may be used to control the first power level of the first signal.

公开(公告)号：US09894427B2

公开(公告)日：2018-02-13

申请号：US14938592

申请日：2015-11-11

Applicant: Juniper Networks, Inc.

Inventor： Pradeep Sindhu ,  Roberto Marcoccia ,  Theodore J. Schmidt ,  George R. Sosnowski ,  Christian Malouin

IPC: H04J14/02 ,  H04Q11/00 ,  H04B10/572

CPC classification number: H04Q11/0066 ,  H04B10/572 ,  H04J14/02 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0286 ,  H04Q11/0005 ,  H04Q11/0071 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/006 ,  H04Q2011/0086

Abstract: In some embodiments, a system includes a set of servers, a set of switches within a switch fabric, and an optical device. The optical device is operatively coupled to the set of servers via a first set of optical fibers. Each server from the set of servers is associated with at least one wavelength from a set of wavelengths upon connection to the optical device. The optical device is operatively coupled to each switch from a set of switches via an optical fiber from a second set of optical fibers. The optical device, when operative, wavelength demultiplexes optical signals received from each switch from the set of switches, and sends, for each wavelength from the set of wavelengths, optical signals for that wavelength to the server from the set of servers.

公开(公告)号：US09882637B2

公开(公告)日：2018-01-30

申请号：US15009135

申请日：2016-01-28

Applicant: Juniper Networks, Inc.

Inventor： Christian Malouin ,  Roberto Marcoccia ,  George R. Sosnowski ,  Theodore J. Schmidt

IPC: H04B10/079 ,  H04B10/50

CPC classification number: H04B10/0795 ,  H04B10/07955 ,  H04B10/50

Abstract: In some embodiments, an apparatus includes an optical detector that can sample asynchronously an optical signal from an optical component that can be either an optical transmitter or an optical receiver. In such embodiments, the apparatus also includes a processor operatively coupled to the optical detector, where the processor can calculate a metric value of the optical signal without an extinction ratio of the optical signal being measured. The metric value is proportional to the extinction ratio of the optical signal. In such embodiments, the processor can define an error signal based on the metric value of the optical signal and the processor can send the error signal to the optical transmitter such that the optical transmitter modifies an output optical signal.

公开(公告)号：US09882633B2

公开(公告)日：2018-01-30

申请号：US14871424

申请日：2015-09-30

Applicant: Juniper Networks, Inc.

Inventor： Theodore J. Schmidt ,  Roberto Marcoccia ,  George R. Sosnowski ,  Christian Malouin

IPC: H04B10/03 ,  H04B10/40 ,  H04J14/02

CPC classification number: H04B10/03 ,  H04B10/40 ,  H04J14/0295 ,  H04J14/0297

Abstract: In some embodiments, an apparatus includes an optical transceiver that includes a first set of electrical transmitters operatively coupled to a switch. Each electrical transmitter from the first set of electrical transmitters is configured to transmit an electrical signal from a set of electrical signals. In such embodiments, the switch is configured to switch an electrical signal from the set of electrical signals such that the set of electrical signals are transmitted via a second set of electrical transmitters. Each electrical transmitter from the second set of electrical transmitters is operatively coupled to an optical transmitter from a set of optical transmitters. The set of optical transmitters is operatively coupled to an optical multiplexer. In such embodiments, at least one electrical transmitter from the second set of electrical transmitters is associated with a failure within the optical transceiver.

公开(公告)号：US20170134836A1

公开(公告)日：2017-05-11

申请号：US14938592

申请日：2015-11-11

Applicant: Juniper Networks, Inc.

Inventor： Pradeep Sindhu ,  Roberto Marcoccia ,  Theodore J. Schmidt ,  George R. Sosnowski ,  Christian Malouin

IPC: H04Q11/00

CPC classification number: H04Q11/0066 ,  H04B10/572 ,  H04J14/02 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0286 ,  H04Q11/0005 ,  H04Q11/0071 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/006 ,  H04Q2011/0086

Abstract: In some embodiments, a system includes a set of servers, a set of switches within a switch fabric, and an optical device. The optical device is operatively coupled to the set of servers via a first set of optical fibers. Each server from the set of servers is associated with at least one wavelength from a set of wavelengths upon connection to the optical device. The optical device is operatively coupled to each switch from a set of switches via an optical fiber from a second set of optical fibers. The optical device, when operative, wavelength demultiplexes optical signals received from each switch from the set of switches, and sends, for each wavelength from the set of wavelengths, optical signals for that wavelength to the server from the set of servers.

公开(公告)号：US20170093516A1

公开(公告)日：2017-03-30

申请号：US14871514

申请日：2015-09-30

Applicant: Juniper Networks, Inc.

Inventor： Roberto Marcoccia ,  Theodore J. Schmidt ,  George R. Sosnowski ,  Christian Malouin

IPC: H04J14/02

CPC classification number: H04J14/0258 ,  G02B6/29385 ,  H04J14/02 ,  H04J14/0272

Abstract: In some embodiments, an apparatus includes a first optical transceiver. The first optical transceiver includes a set of optical transmitters, an optical multiplexer operatively coupled to the set of optical transmitters, and a variable optical attenuator operatively coupled to the optical multiplexer. The variable optical attenuator is configured to receive a control signal from a controller of the first optical transceiver and modulate a signal representing control information with an output from the optical multiplexer. The control information is associated with the control signal and for a second optical transceiver operatively coupled to the first optical transceiver.

公开(公告)号：US09258056B2

公开(公告)日：2016-02-09

申请号：US14150107

申请日：2014-01-08

Applicant: JUNIPER NETWORKS, INC.

Inventor： Christian Malouin ,  Roberto Marcoccia ,  George R. Sosnowski ,  Theodore J. Schmidt

IPC: H04B10/079

CPC classification number: H04B10/0795 ,  H04B10/07955 ,  H04B10/50

Abstract: In some embodiments, an apparatus includes an optical detector that can sample asynchronously an optical signal from an optical component that can be either an optical transmitter or an optical receiver. In such embodiments, the apparatus also includes a processor operatively coupled to the optical detector, where the processor can calculate a metric value of the optical signal without an extinction ratio of the optical signal being measured. The metric value is proportional to the extinction ratio of the optical signal. In such embodiments, the processor can define an error signal based on the metric value of the optical signal and the processor can send the error signal to the optical transmitter such that the optical transmitter modifies an output optical signal.

Abstract translation: 在一些实施例中，一种装置包括一个光学检测器，该光学检测器可以异步地从可以是光发送器或光接收器的光学部件采样光信号。 在这样的实施例中，该装置还包括可操作地耦合到光学检测器的处理器，其中处理器可以计算光信号的度量值，而不测量所测量的光信号的消光比。 度量值与光信号的消光比成比例。 在这样的实施例中，处理器可以基于光信号的度量值定义误差信号，并且处理器可以将误差信号发送到光发射机，使得光发射机修改输出光信号。

公开(公告)号：US09240843B1

公开(公告)日：2016-01-19

申请号：US13730246

申请日：2012-12-28

Applicant: Juniper Networks, Inc.

Inventor： Christian Malouin ,  Philip A. Thomas ,  Murat Arabaci ,  Bo Zhang ,  Theodore J. Schmidt ,  Roberto Marcoccia

IPC: H04B10/06 ,  H04B10/61

CPC classification number: H04B10/616

Abstract: In some embodiments, an apparatus includes a coherent optical receiver that can receive during a first time period a set of in-phase signals and a set of quadrature signals having a skew from the set of in-phase signals. The coherent receiver can blindly determine a delay between the set of in-phase signals and the set of quadrature signals based on the set of in-phase signals and the set of quadrature signals. The delay includes an intersymbol portion and an intrasymbol portion. The coherent optical receiver can apply the delay at a second time after the first time period such that a skew after the second time is less than the skew at the first time period.

Abstract translation: 在一些实施例中，一种装置包括相干光接收机，其可以在第一时间周期期间接收一组同相信号和一组正交信号，该组正交信号具有来自该组同相信号的偏斜。 相干接收机可以基于同相信号和正交信号集合盲目地确定同相信号组和正交信号组之间的延迟。 延迟包括符号间部分和内符号部分。 相干光接收机可以在第一时间段之后的第二时间施加延迟，使得第二时间之后的偏斜小于第一时间段的偏斜。