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公开(公告)号：US20170317778A1
公开(公告)日：2017-11-02
申请号：US15655307
申请日：2017-07-20
Applicant: Google Inc.
Inventor： Cedric Fung Lam , Liang Du , Changhong Joy Jiang , Ben Warren Segura , Xiangjun Zhao , Daoyi Wang
CPC classification number: H04J14/0247 , H04B10/2503 , H04J14/0221 , H04J14/0223 , H04J14/0242 , H04J14/0265 , H04J14/0282 , H04J14/08 , H04Q11/0067
Abstract: A communication system includes a first multiplexer configured to multiplex a first optical line terminal signal having a first multiplexing group and a second optical line terminal signal having a second multiplexing group into a first multiplexed signal. The communication system includes a second multiplexer configured to demultiplex a second multiplexed signal into a third optical line terminal signal having the first multiplexing group and a fourth optical line terminal signal having the second multiplexing group. Moreover, the communication system includes a third multiplexer optically connected with the first multiplexer and the second multiplexer, the third multiplexer configured to multiplex/demultiplex between a feeder optical signal and the first and second multiplexed signals. The first and second optical line terminal signals include a legacy upstream free spectral range, and the third and fourth optical line terminal signals include a legacy downstream free spectral range.
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公开(公告)号：US09692546B2
公开(公告)日：2017-06-27
申请号：US14885060
申请日：2015-10-16
Applicant: Google Inc.
Inventor： Cedric Fung Lam , Yut Loy Chan
CPC classification number: H04J14/0242 , H04J14/0246 , H04J14/025 , H04J14/0265 , H04J14/0282 , H04J2014/0253 , H04Q11/0067 , H04Q2011/0016 , H04Q2011/0086
Abstract: A method of processing optical signals in a passive optical network includes receiving a first signal in a first optical spectrum, and receiving a second signal in a second optical spectrum. The second optical spectrum is different from the first optical spectrum. The method also includes multiplexing the first and second signals into a first multiplexed signal and outputting the first multiplexed signal. The method also includes receiving a second multiplexed signal, and demultiplexing the second multiplexed signal into a third signal and a fourth signal. The third signal is in the second optical spectrum and the fourth signal is in the first optical spectrum. The method also includes outputting the third and fourth signals.
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公开(公告)号：US09369979B1
公开(公告)日：2016-06-14
申请号：US14338469
申请日：2014-07-23
Applicant: Google Inc.
Inventor： Zixia Huang , Marvin Weinstein , Nicholas Ng , Ke Dong , Cedric Fung Lam , Tony Ong , Wenlei Dai
IPC: H04B10/08 , H04W56/00 , H04B10/079 , H04Q11/00
CPC classification number: H04B10/0793 , H04Q11/0067 , H04W56/001
Abstract: A cascaded distribution framework includes a global positioning system receiver in communication with optical line terminals. Each global positioning system receiver receives a signal from a corresponding global positioning system satellite. Each optical line terminal includes a management card for each global positioning system receiver in communication with the optical line terminal and a line card. The management card receives a global positioning system signal from a corresponding global positioning system receiver. The line card is collocated for each management card in the optical line terminal. Each line card receives a global positioning system signal from each management card in the optical line terminal, determines a signal quality score of each received signal based on a signal drift and a phase precision of the corresponding signal, and selects one of the received global positioning system signals having the highest signal quality score.
Abstract translation: 级联分配框架包括与光线路终端通信的全球定位系统接收机。 每个全球定位系统接收机从相应的全球定位系统卫星接收信号。 每个光线路终端包括用于与光线路终端和线路卡通信的每个全球定位系统接收器的管理卡。 管理卡从相应的全球定位系统接收器接收全球定位系统信号。 光线路终端中的每个管理卡都配置了线卡。 每个线卡从光线路终端中的每个管理卡接收全球定位系统信号，根据信号漂移和对应信号的相位精度确定每个接收信号的信号质量得分，并选择接收到的全局定位 具有最高信号质量得分的系统信号。
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公开(公告)号：US09369896B1
公开(公告)日：2016-06-14
申请号：US14338744
申请日：2014-07-23
Applicant: Google Inc.
Inventor： Zixia Huang , Marvin Weinstein , Nicholas Ng , Ke Dong , Cedric Fung Lam , Tony Ong , Wenlei Dai
CPC classification number: H04B10/0793 , H04Q11/0067 , H04W56/001
Abstract: A method for selecting a global positioning receiver includes receiving global positioning system signals from global positioning system receivers. The global positioning system receivers receive the global positioning system signals from corresponding global positioning system satellites. The method also includes determining a signal quality score of each received signal based on a signal drift and a phase precision of the corresponding signal, and selecting one of the received global positioning system signals having the highest signal quality score.
Abstract translation: 用于选择全球定位接收机的方法包括从全球定位系统接收机接收全球定位系统信号。 全球定位系统接收机从相应的全球定位系统卫星接收全球定位系统信号。 该方法还包括基于相应信号的信号漂移和相位精度确定每个接收信号的信号质量得分，以及选择具有最高信号质量得分的所接收的全球定位系统信号之一。
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公开(公告)号：US20170134113A1
公开(公告)日：2017-05-11
申请号：US14938146
申请日：2015-11-11
Applicant: Google Inc.
Inventor： Cedric Fung Lam , Liang Du , Changhong Joy Jiang , Ben Warren Segura , Xiangjun Zhao , Daoyi Wang
IPC: H04J14/02
CPC classification number: H04J14/0247 , H04B10/2503 , H04J14/0221 , H04J14/0223 , H04J14/0242 , H04J14/0265 , H04J14/0282 , H04J14/08 , H04Q11/0067
Abstract: A communication system includes a first multiplexer configured to multiplex a first optical line terminal signal having a first multiplexing group and a second optical line terminal signal having a second multiplexing group into a first multiplexed signal. The communication system includes a second multiplexer configured to demultiplex a second multiplexed signal into a third optical line terminal signal having the first multiplexing group and a fourth optical line terminal signal having the second multiplexing group. Moreover, the communication system includes a third multiplexer optically connected with the first multiplexer and the second multiplexer, the third multiplexer configured to multiplex/demultiplex between a feeder optical signal and the first and second multiplexed signals. The first and second optical line terminal signals include a legacy upstream free spectral range, and the third and fourth optical line terminal signals include a legacy downstream free spectral range.
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Patent Agency Ranking
公开(公告)号：US09438005B1
公开(公告)日：2016-09-06
申请号：US14293604
申请日：2014-06-02
Applicant: Google Inc.
Inventor： Xiangjun Zhao , Cedric Fung Lam , Steven Fong
IPC: H01S3/10 , H01S3/139 , H01S5/0625 , H01S5/125
CPC classification number: H01S5/06256 , H01S5/0014 , H01S5/02415 , H01S5/0617 , H01S5/0625 , H01S5/06255 , H01S5/06804 , H01S5/125
Abstract: A method of calibrating a tunable laser having a distributed Bragg reflector includes, aligning a reflection peak of the distributed Bragg reflector with a target cavity mode of a plurality of cavity modes defined by a total optical path length inside a resonant cavity of the tunable laser. The method includes aligning a resultant lasing mode with a target wavelength of an output wavelength grid. The resultant lasing mode is formed by alignment of the reflection peak of the distributed Bragg reflector with the target cavity mode. The method also includes setting a target output power and a target extinction ratio of the tunable laser.
Abstract translation: 校准具有分布式布拉格反射器的可调谐激光器的方法包括：将分布布拉格反射器的反射峰与由可调谐激光器的谐振腔内部的总光路长度限定的多个空腔模式的目标腔模式对准。 该方法包括将所得的激光模式与输出波长网格的目标波长对准。 所得到的激光模式是通过将分布式布拉格反射器的反射峰与目标空腔模式对准而形成的。 该方法还包括设置可调激光器的目标输出功率和目标消光比。
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公开(公告)号：US09240672B1
公开(公告)日：2016-01-19
申请号：US14293133
申请日：2014-06-02
Applicant: Google Inc.
Inventor： Xiangjun Zhao , Cedric Fung Lam , Steven Fong
CPC classification number: H01S5/0612 , H01S5/02415 , H01S5/06256 , H01S5/125
Abstract: A wavelength tunable laser includes a gain section, a grating section, and an isolation section. The gain section generates and modulates an optical signal. The grating section is positioned adjacent to the gain section, and the isolation section is disposed between the gain section and the grating section. The isolation section impedes conduction of an electrical current between the gain section and the grating section.
Abstract translation: 波长可调激光器包括增益部分，光栅部分和隔离部分。 增益部分生成并调制光信号。 光栅部分位于增益部分附近，并且隔离部分设置在增益部分和光栅部分之间。 隔离部分阻止增益部分和光栅部分之间的电流传导。
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公开(公告)号：US09197352B2
公开(公告)日：2015-11-24
申请号：US13793206
申请日：2013-03-11
Applicant: Google Inc.
Inventor： Cedric Fung Lam , Yut Loy Chan
CPC classification number: H04J14/0242 , H04J14/0246 , H04J14/025 , H04J14/0265 , H04J14/0282 , H04J2014/0253 , H04Q11/0067 , H04Q2011/0016 , H04Q2011/0086
Abstract: A method of processing optical signals in a passive optical network includes receiving a first signal in a first optical spectrum, and receiving a second signal in a second optical spectrum. The second optical spectrum is different from the first optical spectrum. The method also includes multiplexing the first and second signals into a first multiplexed signal and outputting the first multiplexed signal. The method also includes receiving a second multiplexed signal, and demultiplexing the second multiplexed signal into a third signal and a fourth signal. The third signal is in the second optical spectrum and the fourth signal is in the first optical spectrum. The method also includes outputting the third and fourth signals.
Abstract translation: 一种在无源光网络中处理光信号的方法包括以第一光谱接收第一信号，并在第二光谱中接收第二信号。 第二光谱与第一光谱不同。 该方法还包括将第一和第二信号复用为第一复用信号并输出第一复用信号。 该方法还包括接收第二复用信号，以及将第二复用信号解复用为第三信号和第四信号。 第三信号处于第二光谱，第四信号处于第一光谱。 该方法还包括输出第三和第四信号。
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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：US20140255033A1
公开(公告)日：2014-09-11
申请号：US13793206
申请日：2013-03-11
Applicant: Google Inc.
Inventor： Cedric Fung Lam , Yut Loy Chan
IPC: H04J14/02
CPC classification number: H04J14/0242 , H04J14/0246 , H04J14/025 , H04J14/0265 , H04J14/0282 , H04J2014/0253 , H04Q11/0067 , H04Q2011/0016 , H04Q2011/0086
Abstract: A method of processing optical signals in a passive optical network includes receiving a first signal in a first optical spectrum, and receiving a second signal in a second optical spectrum. The second optical spectrum is different from the first optical spectrum. The method also includes multiplexing the first and second signals into a first multiplexed signal and outputting the first multiplexed signal. The method also includes receiving a second multiplexed signal, and demultiplexing the second multiplexed signal into a third signal and a fourth signal. The third signal is in the second optical spectrum and the fourth signal is in the first optical spectrum. The method also includes outputting the third and fourth signals.
Abstract translation: 一种在无源光网络中处理光信号的方法包括以第一光谱接收第一信号，并在第二光谱中接收第二信号。 第二光谱与第一光谱不同。 该方法还包括将第一和第二信号复用为第一复用信号并输出第一复用信号。 该方法还包括接收第二复用信号，以及将第二复用信号解复用为第三信号和第四信号。 第三信号处于第二光谱，第四信号处于第一光谱。 该方法还包括输出第三和第四信号。
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