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公开(公告)号：US10715255B2
公开(公告)日：2020-07-14
申请号：US16536162
申请日：2019-08-08
申请人： INPHI CORPORATION
IPC分类号： H04B10/516 , G02F1/01 , G02F1/225 , H01S5/0687 , H01S5/40 , H04B10/50 , H01S5/14 , H04B10/556 , H04J14/02 , G02F1/025 , H01S3/067 , H01S5/00 , G02F1/21
摘要： The present invention relates to telecommunication techniques and integrated circuit (IC) devices. More specifically, embodiments of the present invention provide an off-quadrature modulation system. Once an off-quadrature modulation position is determined, a ratio between DC power transfer amplitude and dither tone amplitude for a modulator is as a control loop target to stabilize off-quadrature modulation. DC power transfer amplitude is obtained by measuring and sampling the output of an optical modulator. Dither tone amplitude is obtained by measuring and sampling the modulator output and performing calculation using the optical modulator output values and corresponding dither tone values. There are other embodiments as well.
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公开(公告)号：US10148361B2
公开(公告)日：2018-12-04
申请号：US15873755
申请日：2018-01-17
申请人： INPHI CORPORATION
IPC分类号： H04B10/40 , H04J14/02 , H04B10/524 , H04B10/27 , H04L25/49 , H04L27/34 , H04B10/516 , H04B10/272 , H04B10/54 , H04L7/00 , H04B10/556
摘要： The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using PAM format(s) over optical communication networks. In various embodiments, amplitude and phase of the optical wave are modulated. There are other embodiments as well.
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公开(公告)号：US09941970B2
公开(公告)日：2018-04-10
申请号：US15223724
申请日：2016-07-29
申请人： INPHI CORPORATION
发明人： Hari Shankar
IPC分类号： H04B10/516 , H04B10/588 , H04B10/2575 , H04B10/50
CPC分类号： H04B10/516 , H04B10/2575 , H04B10/50572 , H04B10/50593 , H04B10/588
摘要： The present invention is directed to optical communication systems and methods thereof. In various embodiments, the present invention provides method for linearizing Mach Zehnder modulators by digital pre-compensation and adjusting the gain of the driver and/or the modulation index. The pre-compensation can be implemented as a digital pre-compensation algorithm, which is a part of an adaptive feedback loop. There are other embodiments as well.
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公开(公告)号：US09485031B2
公开(公告)日：2016-11-01
申请号：US14615626
申请日：2015-02-06
申请人： INPHI CORPORATION
IPC分类号： H04B10/04 , H04B10/02 , H04B10/18 , H04B10/54 , H04B10/524 , H04B10/272 , H04B10/40 , H04B10/27 , H04L7/00
CPC分类号： H04B10/5161 , H04B10/27 , H04B10/272 , H04B10/40 , H04B10/524 , H04B10/541 , H04B10/5561 , H04L7/0075
摘要： The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using PAM format(s) over optical communication networks. In various embodiments, amplitude and phase of the optical wave are modulated. There are other embodiments as well.
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5.发明授权Off quadrature biasing of mach zehnder modulator for improved OSNR performance 有权马赫兹恩调制器的正交偏置关闭，以提高OSNR性能公开(公告)号：US09323128B1
公开(公告)日：2016-04-26
申请号：US14706908
申请日：2015-05-07
申请人： Inphi Corporation
发明人： Radhakrishnan L. Nagarajan , Hari Shankar , Masaki Kato , Yang Fu
CPC分类号： G02F1/0123 , G02B6/12007 , G02F1/0147 , G02F1/025 , G02F1/225 , G02F1/2255 , G02F2001/212 , G02F2202/105 , H01S3/06754 , H01S3/1608 , H01S5/0085 , H01S5/0687 , H01S5/4012 , H01S5/4087 , H04B10/505 , H04B10/50575
摘要： An integrated optical modulator device. The device can include a driver module coupled to an optical modulator. The optical modulator is characterized by a raised cosine transfer function. This optical modulator can be coupled to a light source and a bias control module, which is configured to apply an off-quadrature bias to the optical modulator. This bias can be accomplished by applying an inverse of the modulator transfer function to the optical modulator in order to minimize a noise variance. This compression function can result in an optimized increased top eye opening for a signal associated with the optical modulator. Furthermore, the optical modulator can be coupled to an EDFA (Erbium Doped Fiber Amplifier) that is coupled to a filter coupled an O/E (Optical-to-Electrical) receiver.
摘要翻译： 集成光调制器装置。 该装置可以包括耦合到光调制器的驱动器模块。 光调制器的特征在于升高的余弦传递函数。 该光调制器可以耦合到光源和偏置控制模块，该偏置控制模块被配置为向光调制器施加非正交偏置。 可以通过将调制器传递函数的反相应用于光调制器来实现该偏置，以便最小化噪声方差。 该压缩功能可以导致用于与光学调制器相关联的信号的优化的增加的顶部眼睛开度。 此外，光调制器可以耦合到耦合到耦合到O / E（光 - 电）接收器的滤波器的EDFA（掺铒光纤放大器）。
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公开(公告)号：US11153013B2
公开(公告)日：2021-10-19
申请号：US17090482
申请日：2020-11-05
申请人： INPHI CORPORATION
IPC分类号： H04B10/40 , H04B10/079 , H04B10/516 , H04B10/572 , H04L1/00 , H04B10/50 , H04L1/20
摘要： The present invention is directed to communication systems and methods. In a specific embodiment, the present invention provides an optical receiver that receives a data stream from an optical transmitter. The optical receiver determines a histogram contour parameter using the data stream and inserts the histogram contour parameter into a back-channel data segment, which is then transmitted to the optical transmitter. The optical transmitter changes its data transmission setting based on the histogram contour parameter. There are other embodiments as well.
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公开(公告)号：US10469176B2
公开(公告)日：2019-11-05
申请号：US15644342
申请日：2017-07-07
申请人： Inphi Corporation
IPC分类号： H04B10/079 , H04B10/516 , H04B10/40 , H04B10/572 , H04L1/00 , H04B10/50 , H04L1/20
摘要： The present invention is directed to communication systems and methods. In a specific embodiment, the present invention provides an optical receiver that receives a data stream from an optical transmitter. The optical receiver determines a histogram contour parameter using the data stream and inserts the histogram contour parameter into a back-channel data segment, which is then transmitted to the optical transmitter. The optical transmitter changes its data transmission setting based on the histogram contour parameter. There are other embodiments as well.
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公开(公告)号：US10103815B2
公开(公告)日：2018-10-16
申请号：US15904840
申请日：2018-02-26
申请人： INPHI CORPORATION
发明人： Hari Shankar
IPC分类号： H04B10/516 , H04B10/588 , H04B10/2575 , H04B10/50
摘要： The present invention is directed to optical communication systems and methods thereof. In various embodiments, the present invention provides method for linearizing Mach Zehnder modulators by digital pre-compensation and adjusting the gain of the driver and/or the modulation index. The pre-compensation can be implemented as a digital pre-compensation algorithm, which is a part of an adaptive feedback loop. There are other embodiments as well.
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公开(公告)号：US09912411B2
公开(公告)日：2018-03-06
申请号：US15277014
申请日：2016-09-27
申请人： INPHI CORPORATION
IPC分类号： H04L27/34 , H04B10/06 , H04J14/00 , H04B10/516 , H04B10/524 , H04B10/272 , H04B10/40 , H04B10/54 , H04B10/27 , H04L7/00 , H04B10/556
CPC分类号： H04B10/5161 , H04B10/27 , H04B10/272 , H04B10/40 , H04B10/524 , H04B10/541 , H04B10/5561 , H04L7/0075
摘要： The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using PAM format(s) over optical communication networks. In various embodiments, amplitude and phase of the optical wave are modulated. There are other embodiments as well.
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公开(公告)号：US10862589B2
公开(公告)日：2020-12-08
申请号：US16828820
申请日：2020-03-24
申请人： INPHI CORPORATION
IPC分类号： H04B10/079 , H04B10/516 , H04B10/40 , H04B10/572 , H04B10/50 , H04L1/20 , H04L1/00
摘要： The present invention is directed to communication systems and methods. In a specific embodiment, the present invention provides an optical receiver that receives a data stream from an optical transmitter. The optical receiver determines a histogram contour parameter using the data stream and inserts the histogram contour parameter into a back-channel data segment, which is then transmitted to the optical transmitter. The optical transmitter changes its data transmission setting based on the histogram contour parameter. There are other embodiments as well.
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