公开(公告)号：US09350453B2

公开(公告)日：2016-05-24

申请号：US14231320

申请日：2014-03-31

Applicant: Juniper Networks, Inc.

Inventor： Pradeep Sindhu ,  Jayabharat Boddu ,  Roberto Marcoccia ,  Theodore John Schmidt ,  Christian Malouin ,  Abhijit Kumar Choudhury ,  James Michael Murphy

IPC: H04J14/02 ,  H04B10/272 ,  H04B10/27 ,  H04B10/2587 ,  H04L7/00 ,  H04J3/06

CPC classification number: H04B10/27 ,  H04B10/2587 ,  H04B10/272 ,  H04J3/0682 ,  H04J14/0239 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J2014/0253 ,  H04L7/0012 ,  H04L45/62

Abstract: An access network includes an access device having an optical interface module that outputs a plurality of pairs of optical communication signals, each of the pairs of optical communication signals comprising a modulated optical transmit signal and an unmodulated optical receive signal, each of the pairs of optical communication signals having a different wavelength. A customer premise equipment (CPE) comprises an optical interface module to receive the modulated optical transmit signal and the unmodulated optical receive signal for any of the plurality of pairs of optical communication signals. The optical interface module includes a receive module to demodulate the modulated optical transmit signal into inbound symbols and a transmit module having an optical modulator and reflective optics to modulate the unmodulated optical receive signal in accordance with a data signal and reflect a modulated optical receive signal to communicate outbound data symbols to the access device.

Abstract translation: 接入网络包括具有输出多对光通信信号的光接口模块的接入设备，每对光通信信号包括调制的光发射信号和未调制的光接收信号，每对光学 具有不同波长的通信信号。 客户驻地设备（CPE）包括光接口模块，用于接收调制的光发射信号和用于多对光通信信号中的任何一个的未调制的光接收信号。 光接口模块包括接收模块，用于将经调制的光发射信号解调为入射符号，以及具有光调制器和反射光学器件的发射模块，用于根据数据信号调制未调制的光接收信号，并将调制的光接收信号反射到 将出站数据符号传送到访问设备。

公开(公告)号：US09350445B1

公开(公告)日：2016-05-24

申请号：US14834168

申请日：2015-08-24

Applicant: Juniper Networks, Inc.

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

IPC: G02F1/00 ,  H04B10/035

CPC classification number: H04B10/035 ,  H04B10/032

Abstract: In some embodiments, an apparatus includes an optical transceiver system that includes a set of optical transmitters and a backup optical transmitter. In such embodiments, each optical transmitter from the set of optical transmitter can transmit at a unique wavelength from a set of wavelengths. The backup optical transmitter can transmit at a wavelength from the set of wavelengths when an optical transmitter from the set of optical transmitters associated with that wavelength fails. In other embodiments, an apparatus includes an optical transceiver system that includes a set of optical receivers and a backup optical receiver. The backup optical receiver can receive at a wavelength from the set of wavelengths when an optical receiver from the set of optical receivers associated with that wavelength fails.

公开(公告)号：US09225431B1

公开(公告)日：2015-12-29

申请号：US13854023

申请日：2013-03-29

Applicant: Juniper Networks, Inc.

Inventor： Murat Arabaci ,  Christian Malouin ,  Philip A. Thomas ,  Theodore John Schmidt ,  Roberto Marcoccia

IPC: H04B10/06 ,  H04B10/61

CPC classification number: H04B10/6161 ,  H04B10/25133

Abstract: This disclosure describes the Fast Chromatic Dispersion Estimation (FCDE) techniques which corrects for chromatic dispersion in high data rate optical communications systems such as some coherent optical communications systems. FCDE may utilize transform such as fast-Fourier transforms to estimate the chromatic dispersion. From an estimate of the chromatic dispersion, the techniques may determine filter tap coefficients for compensating the chromatic dispersion.

Abstract translation: 本公开描述了在诸如一些相干光通信系统的高数据速率光通信系统中校正色散的快速色散估计（FCDE）技术。 FCDE可以利用诸如快速傅里叶变换的变换来估计色散。 根据色散的估计，这些技术可以确定用于补偿色散的滤波器抽头系数。

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.