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公开(公告)号：US09798084B2
公开(公告)日：2017-10-24
申请号：US15354643
申请日：2016-11-17
Applicant: Google Inc.
Inventor： Lieven Verslegers , Ryohei Urata
CPC classification number: G02B6/124 , G02B6/12 , G02B6/126 , G02B6/2706 , G02B6/2773 , G02B6/30 , G02B6/34 , G02B2006/12061 , G02B2006/12104
Abstract: This disclosure provides systems, methods, and apparatus for a photonic chip. The photonic chip includes one or more electronic components in addition to one or more optical components. An optical coupler can be utilized for coupling external optical fibers or sources with the optical components. The optical coupler can include a beam splitter for splitting an incident light having both trans-electric (TE) and trans-magnetic (TM) polarizations into two beams having only TE and TM polarizations. The light beam with TM polarization is incident on a grating coupler on the chip having a horn section, which includes gratings. The light beam is reflected onto the grating coupler such that the direction of TM polarization is within the first plane of incidence, and the first beam of light is incident on the first plurality of gratings at an angle with respect to a normal to the plane of the first grating coupler.
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2.发明申请公开(公告)号：US20170201330A1
公开(公告)日：2017-07-13
申请号：US14991826
申请日：2016-01-08
Applicant: Google Inc.
Inventor： Xiang Zhou , Ryohei Urata , Erji Mao , Hong Liu , Christopher Lyle Johnson
IPC: H04B10/69
CPC classification number: H04B10/6971 , H04B10/697
Abstract: This disclosure provides systems, methods, and apparatus for mitigating the effects of interference signals on optical signals received at a direct-detection optical receivers. The optical receivers are capable of attenuating interference noise signals resulting from the interference between a transmitted optical signal transmitted from a transmitter to the optical receiver and one or more additional signals received at the optical receiver. The interference can be due to multi-path interference or due to in-band interference. The receivers include a tunable filter for filtering the received optical signal to remove the interference. A frequency offset module processes the received optical signal to determine a frequency offset indicative of the difference between the carrier frequencies of a modulated optical signal and an interference optical signal. The offset frequency and a bandwidth determined by the frequency offset module can be used to adjust the tunable filter to remove the interference signal from the received signal.
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公开(公告)号：US09641254B1
公开(公告)日：2017-05-02
申请号：US14678230
申请日：2015-04-03
Applicant: Google Inc.
Inventor： Zuowei Shen , Kyle Fukuchi , Melanie Beauchemin , Ryohei Urata
CPC classification number: H05K1/0206 , B23K26/381 , G02B6/00 , G02B6/32 , G02B6/42 , G02B6/4204 , G02B6/4246 , G02B6/4269 , G02B6/428 , H01S5/0261 , H04B10/40 , H04B10/801 , H05K1/0274 , H05K1/18 , H05K3/061 , H05K3/32 , H05K3/4038 , H05K2201/10121 , H05K2201/10416
Abstract: The present disclosure discusses an improved optical transceiver. The optical transceiver of the present disclosure includes an optical transmitter and an optical receiver coupled to an area of a printed circuit board that includes a plurality of thermal microvias. The thermal microvias are coupled to a heat sink or other heat dissipater and provide a path from the components of the optical transceiver to the heat dissipater for heat to travel.
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公开(公告)号：US09473833B2
公开(公告)日：2016-10-18
申请号：US14986016
申请日：2015-12-31
Applicant: Google Inc.
Inventor： Ryohei Urata , Hong Liu , Amin Vahdat , Christopher Lyle Johnson , Junlan Zhou , Alexander Shraer
CPC classification number: H04Q11/0005 , G06F13/4022 , H04Q11/0062 , H04Q2011/0015 , H04Q2011/0052 , Y02D10/14 , Y02D10/151
Abstract: Systems and methods for increasing bandwidth in a computer network are provided. A computer network can include a first lower level switch, first and second upper level switches, and first and second passive optical splitters, and a mirror. The first passive optical splitter can have a first port directly coupled to the first upper level switch, a second port directly coupled to the second upper level switch. The second passive optical splitter can have a port directly coupled to a port of the first passive optical splitter, and a port directly coupled to the first lower level switch. The mirror can be coupled to a port of the second passive optical splitter and reflect an optical signal received from the second passive optical splitter to the first upper level switch and second upper level switch through the second passive optical splitter and the first passive optical splitter.
Abstract translation: 提供了一种用于增加计算机网络带宽的系统和方法。 计算机网络可以包括第一下级开关，第一和第二上级开关以及第一和第二无源分光器以及反射镜。 第一无源分光器可以具有直接耦合到第一上级开关的第一端口，直接耦合到第二上级开关的第二端口。 第二无源光分路器可以具有直接耦合到第一无源分光器的端口的端口，以及直接耦合到第一下级开关的端口。 反射镜可以耦合到第二无源光分路器的端口，并且将从第二无源光分路器接收的光信号反射到通过第二无源分光器和第一无源分光器的第一上级开关和第二上级开关。
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5.发明授权公开(公告)号：US09185475B1
公开(公告)日：2015-11-10
申请号：US14519836
申请日：2014-10-21
Applicant: Google Inc.
Inventor： Hong Liu , Ryohei Urata , Christopher L. Johnson
CPC classification number: H04Q11/0005 , H04B10/801 , H04Q2011/0035 , H04Q2011/0049 , H04Q2213/1301
Abstract: Implementations of an apparatus including an optical circuit switch (OCS) having a plurality of OCS input/output ports, at least one optical circulator having a port optically coupled to a corresponding one of the plurality of OCS input/output ports and a reflection mitigation positioned in the optical path between each optical circulator port and its corresponding OCS input/output port and/or in the optical path inside the OCS. A corresponding optical transceiver is optically coupled to each of the at least one optical circulators. Each optical transceiver includes a transmitter optically coupled to one port of the optical circulator and a receiver optically coupled to another port of the optical circulator.
Abstract translation: 包括具有多个OCS输入/输出端口的光电路开关（OCS）的设备的实施方式，至少一个光环行器，其具有光耦合到多个OCS输入/输出端口中对应的一个OCS输入/输出端口的端口， 在每个光环行器端口与其对应的OCS输入/输出端口之间的光路中和/或OCS内的光路中。 相应的光收发器光耦合到至少一个光循环器中的每一个。 每个光收发器包括光耦合到光循环器的一个端口的发射器和光耦合到光环行器的另一个端口的接收器。
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Patent Agency Ranking
公开(公告)号：US09001852B1
公开(公告)日：2015-04-07
申请号：US14023104
申请日：2013-09-10
Applicant: Google Inc.
Inventor： Ryohei Urata , Pedram Zare Dashti , Cedric Fung Lam , Xiangjun Zhao , Hong Liu
CPC classification number: H01S5/02415 , H01S5/026 , H01S5/0265 , H01S5/0612 , H01S5/12 , H01S5/4031 , H01S5/4087
Abstract: The wavelength tunable laser includes a thermo-electric cooler (TEC), a distributed feedback portion, and a semiconductor optical amplifier (SOA). The distributed feedback portion is disposed on the thermo-electric cooler and has a plurality of distributed feedback (DFB) lasers connected in series. Each DFB laser is configured to output an optical signal within a different temperature dependent tunable range of wavelengths. Therefore, the distributed feedback portion outputs an optical signal from one of the DFB lasers. The SOA is optically connected to the distributed feedback portion. The SOA amplifies and modulates the optical signal outputted from the distributed feedback portion.
Abstract translation: 波长可调激光器包括热电冷却器（TEC），分布式反馈部分和半导体光放大器（SOA）。 分布式反馈部分设置在热电冷却器上并且具有串联连接的多个分布式反馈（DFB）激光器。 每个DFB激光器被配置为在不同的温度依赖的可调谐波长范围内输出光信号。 因此，分布式反馈部分输出来自DFB激光器之一的光信号。 SOA与分布式反馈部分光学连接。 SOA放大并调制从分布式反馈部分输出的光信号。
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公开(公告)号：US20180003903A1
公开(公告)日：2018-01-04
申请号：US15196669
申请日：2016-06-29
Applicant: Google Inc.
Inventor： Jamyuen Ko , Hong Liu , Ryohei Urata , Zuowei Shen
CPC classification number: G02B6/3881 , G02B6/32 , G02B6/381 , G02B6/3821 , G02B6/3838 , G02B6/3839 , G02B6/3853 , G02B6/3861 , G02B6/387 , G02B6/3885 , G02B6/3887 , G02B6/3893 , G02B6/3897
Abstract: An optical connector assembly includes a spring, a ferrule, a first housing, and a second housing connected to the first housing. The ferrule includes a ferrule body and a lens. The ferrule body defines a fiber receiver configured to receive optical fibers of an optical cable and a first spring receiver configured to receive the spring. The lens is arranged to optically communicate light propagated by the received optical fibers for free-space optical communication. The first housing defines a first opening configured to slidably receive and guide the ferrule for movement along a first longitudinal axis. The second housing defines a second opening configured to receive the optical cable therethrough along a second longitudinal axis, and a second spring receiver configured to receive the spring. The spring biases movement of the ferrule in the first housing away from the second housing.
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公开(公告)号：US09325423B1
公开(公告)日：2016-04-26
申请号：US14447156
申请日：2014-07-30
Applicant: Google Inc.
Inventor： Xiang Zhou , Ryohei Urata
IPC: H04B10/532 , H04B10/61 , H04J14/06
CPC classification number: H04B10/6162 , H04B10/532 , H04J14/06
Abstract: This disclosure provides systems, methods, and apparatus for improving a signal-to-noise ratio of a signal transmitted over a communication link. The communication system can include a transmitter, a receiver and a communication link for communicating data between the transmitter and the receiver. In some implementations, the transmitter employs a modulator for generating a modulated data signal and a complementary modulated data signal and send over the fiber link through two orthogonal polarizations. The receiver utilizes both the modulated data signal and the complementary modulated data signal for regenerating the transmitted data at the receiver. In some implementations, the receiver determines and transmits a polarization parameter to the transmitter, which adjusts the polarizations of the transmitted modulated and complementary modulated data signals to compensate for polarization angle rotation introduced by the communication link.
Abstract translation: 本公开提供了用于改善通过通信链路发送的信号的信噪比的系统，方法和装置。 通信系统可以包括用于在发射机和接收机之间传送数据的发射机，接收机和通信链路。 在一些实施方式中，发射机采用调制器来产生调制数据信号和互补调制数据信号，并通过两个正交偏振发送光纤链路。 接收机利用调制数据信号和互补调制数据信号来在接收机处再生发送的数据。 在一些实施方式中，接收机确定并向发射机发送偏振参数，该偏振参数调整发送的调制和互补调制数据信号的极化，以补偿由通信链路引入的偏振角旋转。
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公开(公告)号：US08917992B1
公开(公告)日：2014-12-23
申请号：US13732863
申请日：2013-01-02
Applicant: Google Inc.
Inventor： Cedric Fung Lam , Ben Warren Segura , Ryohei Urata , Pedram Zare Dashti , Hong Liu
IPC: H04J14/02
CPC classification number: H04J14/0246 , H04J14/0239
Abstract: An optical network remote node includes first and second node inputs, each receiving a multiplexed optical signal, and node outputs, each outputting a separate demultiplexed optical signal. The node includes first and second optical power splitters, each having a splitter input connected to one of the node inputs and splitter outputs connected to corresponding node outputs. The node includes an arrayed waveguide grating having first and second grating inputs connected to the first and second node inputs, respectively, and grating outputs connected to the corresponding node outputs. If the received signal at one of the node inputs is time division multiplexed, the corresponding connected optical power splitter broadcasts the received optical signal at the node outputs. If the received signal at one of the node inputs is wavelength division multiplexed, the arrayed waveguide grating demultiplexes the received optical signals in wavelength and outputs the demultiplexed signals at the node outputs.
Abstract translation: 光网络远程节点包括每个接收多路复用光信号的第一和第二节点输入以及每个输出单独解复用的光信号的节点输出。 该节点包括第一和第二光功率分配器，每个具有连接到节点输入之一的分离器输入和连接到相应节点输出的分路器输出。 节点包括阵列波导光栅，其具有分别连接到第一和第二节点输入的第一和第二光栅输入以及连接到相应节点输出的光栅输出。 如果在其中一个节点输入端的接收信号被时分多路复用，则对应连接的光功率分配器在节点输出处广播所接收的光信号。 如果在其中一个节点输入端的接收信号是波分复用的，阵列波导光栅将接收到的波长的光信号解复用，并在节点输出端输出解复用的信号。
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10.发明授权公开(公告)号：US08891971B1
公开(公告)日：2014-11-18
申请号：US13630709
申请日：2012-09-28
Applicant: Google Inc.
Inventor： Hong Liu , Ryohei Urata , Christopher L. Johnson
IPC: H04B10/00
CPC classification number: H04Q11/0005 , H04B10/801 , H04Q2011/0035 , H04Q2011/0049 , H04Q2213/1301
Abstract: Implementations of an apparatus including an optical circuit switch (OCS) having a plurality of OCS input/output ports, at least one optical circulator having a port optically coupled to a corresponding one of the plurality of OCS input/output ports and a reflection mitigation positioned in the optical path between each optical circulator port and its corresponding OCS input/output port and/or in the optical path inside the OCS. A corresponding optical transceiver is optically coupled to each of the at least one optical circulators. Each optical transceiver includes a transmitter optically coupled to one port of the optical circulator and a receiver optically coupled to another port of the optical circulator.
Abstract translation: 包括具有多个OCS输入/输出端口的光电路开关（OCS）的装置的实现方式，至少一个具有光耦合到多个OCS输入/输出端口中对应的一个OCS输入/输出端口的端口的光环行器， 在每个光环行器端口与其对应的OCS输入/输出端口之间的光路中和/或在OCS内的光路中。 相应的光收发器光耦合到至少一个光循环器中的每一个。 每个光收发器包括光耦合到光循环器的一个端口的发射器和光耦合到光环行器的另一个端口的接收器。
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