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21. 发明授权

US09270380B2 Chip-based advanced modulation format transmitter 有权
公开(公告)号：US09270380B2
公开(公告)日：2016-02-23
申请号：US14267582
申请日：2014-05-01
申请人： Freedom Photonics, LLC.
发明人： Jonathon Barton , Leif Johansson , Milan Mashanovitch
IPC分类号： H04B10/50 , H04B10/516 , H04B10/61 , H04B10/80
CPC分类号： H04B10/516 , G02B6/125 , G02B6/2766 , G02B2006/12104 , G02F1/2255 , G02F1/2257 , G02F2001/212 , H04B10/503 , H04B10/505 , H04B10/5161 , H04B10/615 , H04B10/6151 , H04B10/801 , Y10T29/49826
摘要： In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.

22. 发明授权

US09246596B2 Monolithic widely-tunable coherent receiver 有权
公开(公告)号：US09246596B2
公开(公告)日：2016-01-26
申请号：US14263855
申请日：2014-04-28
申请人： Freedom Photonics, LLC.
发明人： Jonathon Barton , Milan Mashanovitch
IPC分类号： H04B10/61 , H04B10/516 , H04B10/50 , H04B10/80
CPC分类号： H04B10/516 , G02B6/125 , G02B6/2766 , G02B2006/12104 , G02F1/2255 , G02F1/2257 , G02F2001/212 , H04B10/503 , H04B10/505 , H04B10/5161 , H04B10/615 , H04B10/6151 , H04B10/801 , Y10T29/49826
摘要： Various embodiments of a coherent receiver including a widely tunable local oscillator laser are described herein. In some embodiments, the coherent receiver can be integrated with waveguides, optical splitters and detectors to form a monolithic optical hetero/homodyne receiver. In some embodiments, the coherent receiver can demodulate the full phase information in two polarizations of a received optical signal over a range of optical wavelengths.

23. 发明授权

US09178520B2 Broadband optical phase detection and phase noise removal with an optical resonator 有权
标题翻译：使用光学谐振器进行宽带光相位检测和相位噪声去除
公开(公告)号：US09178520B2
公开(公告)日：2015-11-03
申请号：US13879170
申请日：2011-10-13
申请人： Jeremy Witzens
发明人： Jeremy Witzens
IPC分类号： H03L7/04 , H01S3/00 , H04B10/58 , H04B10/60
CPC分类号： H03L7/04 , H01S3/005 , H01S3/0085 , H04B10/58 , H04B10/60 , H04B10/615 , H04B10/67 , H04B10/697
摘要： A phase noise detection apparatus comprises a laser beam, an optical resonator coupled thereto at a coupling point and a photodetector receiving light from the laser beam. The laser beam and the resonator coupled thereto convert phase noise of light transported by the laser beam prior to the coupling point into intensity noise of light transported by the laser beam thereafter. Intensity noise is converted into an electrical signal by the photodetector. The electrical signal is sent through a first signal path and a second signal path such that the first signal path transports a signal substantially proportional to the intensity noise, which is integrated in an integrator in the second path. Relative gain of the two signal paths can be adjusted and the overall gain of the signal path is preferably such that the optical phase modulator at least partially cancels said phase noise in the optical domain.
摘要翻译：相位噪声检测装置包括激光束，在耦合点耦合到其上的光学谐振器和接收来自激光束的光的光电检测器。激光束和耦合到其上的谐振器将由耦合点之前由激光束传输的光的相位噪声转换成其后由激光束传输的光的强度噪声。强度噪声由光电检测器转换成电信号。电信号通过第一信号路径和第二信号路径发送，使得第一信号路径传输与强度噪声基本成比例的信号，该强度噪声集成在第二路径中的积分器中。可以调整两个信号路径的相对增益，并且信号路径的总体增益优选地使得光相位调制器至少部分地抵消光域中的所述相位噪声。

24. 发明授权

US09100129B2 Optical coherent receiver with local oscillator laser having hybrid cavity 有权
标题翻译：具有混合腔的本地振荡器激光器的光学相干接收器
公开(公告)号：US09100129B2
公开(公告)日：2015-08-04
申请号：US13716322
申请日：2012-12-17
申请人： Keysight Technologies, Inc.
发明人： Douglas Baney
IPC分类号： H04B10/61
CPC分类号： H04B10/61 , H04B10/614 , H04B10/615
摘要： A coherent optical receiver includes a local oscillator (LO) laser configured to provide an LO signal. The LO laser includes a hybrid external cavity and an active gain medium within the hybrid external cavity, where the LO laser is defined between a first optical reflector on a chip including the active gain medium and a second optical reflector not on the chip.
摘要翻译：相干光接收机包括配置成提供LO信号的本地振荡器（LO）激光器。 LO激光器包括混合外部空腔内的混合外部空腔和有源增益介质，其中LO激光器被定义在包括有源增益介质的芯片上的第一光学反射器与不在芯片上的第二光学反射器之间。

25. 发明申请

US20140356001A1 CHIP-BASED ADVANCED MODULATION FORMAT TRANSMITTER 有权
标题翻译：基于芯片的高级调制格式发送器
公开(公告)号：US20140356001A1
公开(公告)日：2014-12-04
申请号：US14267582
申请日：2014-05-01
申请人： Freedom Photonics, LLC.
发明人： Jonathon Barton , Leif Johansson , Milan Mashanovitch
IPC分类号： H04B10/516 , H04B10/50
CPC分类号： H04B10/516 , G02B6/125 , G02B6/2766 , G02B2006/12104 , G02F1/2255 , G02F1/2257 , G02F2001/212 , H04B10/503 , H04B10/505 , H04B10/5161 , H04B10/615 , H04B10/6151 , H04B10/801 , Y10T29/49826
摘要： In various embodiments, a monolithic integrated transmitter, comprising an on-chip laser source and a modulator structure capable of generating advanced modulation format signals based on amplitude and phase modulation are described.
摘要翻译：在各种实施例中，描述了包括片上激光源和能够基于幅度和相位调制产生高级调制格式信号的调制器结构的单片集成发射机。

26. 发明申请

US20140328592A1 SIGNAL PROCESSING METHOD, OPTICAL RECEIVER AND OPTICAL NETWORK SYSTEM 有权
标题翻译：信号处理方法，光接收机和光网络系统
公开(公告)号：US20140328592A1
公开(公告)日：2014-11-06
申请号：US14331597
申请日：2014-07-15
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Lei ZHOU , Zhenxing LIAO , Zhenping WANG , Ning CHENG
IPC分类号： H04B10/61 , H04Q11/00
CPC分类号： H04B10/6164 , H04B10/61 , H04B10/615 , H04Q11/0067
摘要： A signal processing method, an optical receiver and optical network system is provided. The method includes: receiving a first optical signal sent by an optical network unit, generating a second optical signal and modulating a phase of the second optical signal, obtaining at least one path of electrical signals after the first optical signal and the second optical signal separately undergo polarization splitting, frequency mixing, and optical-electrical conversion, outputting a third electrical signal after performing operation processing on the at least one path of electrical signals, and restoring a data signal according to the third electrical signal and performing sending. The embodiments example benefits are greatly reducing complexity of system implementation and maximally reducing a system upgrade cost and an optical power loss.
摘要翻译：提供信号处理方法，光接收机和光网络系统。该方法包括：接收由光网络单元发送的第一光信号，产生第二光信号并调制第二光信号的相位，分别在第一光信号和第二光信号之后获得至少一个电信号路径进行偏振分离，混频和光电转换，在对电信号的至少一个路径执行操作处理之后输出第三电信号，并根据第三电信号恢复数据信号并执行发送。实施例的示例优点是极大地降低了系统实现的复杂性，并最大限度地降低了系统升级成本和光功率损耗。

27. 发明申请

US20130236195A1 OPTICAL FEED-FORWARD EQUALIZER FOR MIMO SIGNAL PROCESSING 有权
标题翻译：用于MIMO信号处理的光学进给均衡器
公开(公告)号：US20130236195A1
公开(公告)日：2013-09-12
申请号：US13786638
申请日：2013-03-06
申请人： Roland Ryf
发明人： Roland Ryf
IPC分类号： H04B10/69
CPC分类号： H04B10/6971 , G02B6/29358 , G02B6/29395 , H04B10/615
摘要： A feed-forward equalizer can be used in the host optical receiver to perform at least some of the desired signal processing in the optical domain, e.g., prior to coherently detecting and digitizing the received optical signal(s). In some embodiments, the signal processing implemented in the feed-forward equalizer can at least partially compensate the adverse effects of chromatic dispersion, polarization-mode dispersion, and/or spatial-mode mixing/crosstalk imparted on the received optical signal(s) in the optical transport link. This reduces the signal-processing load of and the signal-processing requirements to the receiver's electrical DSP.
摘要翻译：在主机光接收机中可以使用前馈均衡器来执行光域中的所需信号处理中的至少一些，例如在相干检测和数字化所接收的光信号之前。在一些实施例中，在前馈均衡器中实现的信号处理可以至少部分地补偿在接收的光信号上施加的色散，偏振模色散和/或空间模式混合/串扰的不利影响光传输链路。这将信号处理负载和信号处理要求降低到接收机的电气DSP。

28. 发明申请

US20130236172A1 COHERENT OPTICAL RECEIVER DEVICE AND COHERENT OPTICAL RECEIVING METHOD 有权
公开(公告)号：US20130236172A1
公开(公告)日：2013-09-12
申请号：US13885266
申请日：2011-09-26
申请人： Kouichi Suzuki
发明人： Kouichi Suzuki
IPC分类号： H04B10/61
CPC分类号： H04B10/6151 , H04B10/0795 , H04B10/61 , H04B10/612 , H04B10/613 , H04B10/614 , H04B10/615 , H04J14/02 , H04J14/06
摘要： In a coherent optical receiver device, the dynamic range considerably decreases in the case of selectively receiving the optical multiplexed signals by means of the wavelength of the local oscillator light, therefore, a coherent optical receiver device according to an exemplary aspect of the invention includes a coherent optical receiver receiving optical multiplexed signals in a lump in which signal light is multiplexed; a variable optical attenuator; a local oscillator connected to the coherent optical receiver; and a first controller controlling the variable optical attenuator by means of a first control signal based on an output signal of the coherent optical receiver; wherein the coherent optical receiver includes a 90-degree hybrid circuit, a photoelectric converter, and an impedance conversion amplifier, and selectively detects the signal light interfering with local oscillation light output by the local oscillator out of the optical multiplexed signals; and the variable optical attenuator is disposed in the optical path of the optical multiplexed signals in a stage preceding the photoelectric converter, inputs the optical multiplexed signals, and outputs them to the coherent optical receiver controlling the intensity of the optical multiplexed signals based on the first control signal.

29. 发明申请

US20130221211A1 Broadband Optical Phase Detection and Phase Noise Removal with an Optical Resonator 有权
标题翻译：宽带光相位检测和相位噪声去除与光学谐振器
公开(公告)号：US20130221211A1
公开(公告)日：2013-08-29
申请号：US13879170
申请日：2011-10-13
申请人： Jeremy Witzens
发明人： Jeremy Witzens
IPC分类号： H03L7/04
CPC分类号： H03L7/04 , H01S3/005 , H01S3/0085 , H04B10/58 , H04B10/60 , H04B10/615 , H04B10/67 , H04B10/697
摘要： A phase noise detection apparatus comprises a laser beam, an optical resonator coupled thereto at a coupling point and a photodetector receiving light from the laser beam. The laser beam and the resonator coupled thereto convert phase noise of light transported by the laser beam prior to the coupling point into intensity noise of light transported by the laser beam thereafter. Intensity noise is converted into an electrical signal by the photodetector. The electrical signal is sent through a first signal path and a second signal path such that the first signal path transports a signal substantially proportional to the intensity noise, which is integrated in an integrator in the second path. Relative gain of the two signal paths can be adjusted and the overall gain of the signal path is preferably such that the optical phase modulator at least partially cancels said phase noise in the optical domain.
摘要翻译：相位噪声检测装置包括激光束，在耦合点耦合到其上的光学谐振器和接收来自激光束的光的光电检测器。激光束和耦合到其上的谐振器将由耦合点之前由激光束传输的光的相位噪声转换成其后由激光束传输的光的强度噪声。强度噪声由光电检测器转换成电信号。电信号通过第一信号路径和第二信号路径发送，使得第一信号路径传输与强度噪声基本成比例的信号，该强度噪声集成在第二路径中的积分器中。可以调整两个信号路径的相对增益，并且信号路径的总体增益优选地使得光相位调制器至少部分地抵消光域中的所述相位噪声。

30. 发明申请

US20130177027A1 DUAL-POLARIZATION MULTI-WAVELENGTH COHERENT RECEIVER FRONTEND 有权
标题翻译：双极化多波长相干接收机FRONTEND
公开(公告)号：US20130177027A1
公开(公告)日：2013-07-11
申请号：US13346337
申请日：2012-01-09
申请人： Mahmoud Rasras
发明人： Mahmoud Rasras
IPC分类号： H04J14/02
CPC分类号： H04J14/002 , G02B6/272 , H04B10/615 , H04J14/06
摘要： An apparatus includes an AWG demultiplexer having first and second adjacent input ports. The first input port is configured to receive a first WDM data-bearing signal, the second input port is configured to receive a first WDM LO signal. The first and second input ports are located such that individual channels of said WDM data-bearing signal route to a first set of output ports, and individual channels of said WDM LO signal route to a second set of output ports interleaved with the first set.
摘要翻译：一种装置包括具有第一和第二相邻输入端口的AWG解复用器。第一输入端口被配置为接收第一WDM数据承载信号，第二输入端口被配置为接收第一WDM LO信号。第一和第二输入端口被定位成使得所述WDM数据承载信号的各个信道路由到第一组输出端口，并且所述WDM LO信号的各个信道路由到与第一组交织的第二组输出端口。

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