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公开(公告)号：US08606120B2
公开(公告)日：2013-12-10
申请号：US12790778
申请日：2010-05-28
IPC分类号： H04B10/67
CPC分类号： H04J14/02 , G02F1/3136 , G02F2201/58 , G02F2203/60 , H04J14/06
摘要： The present invention provides a system, apparatus and method to control an optical polarization beam splitter. A portion of an optical output of the polarization beam splitter is converted into a corresponding electrical signal. The electrical signal is then provided to the polarization beam splitter as a control signal via a feedback loop. The polarization beam splitter controls a characteristic of the optical output of the polarization beam splitter in response to the received control signal. The characteristic, for example, may be controlled through thermo-optically or electro-optically. The control system may be used over a period of time to maintain the characteristic at a desired value, for example as the components of the polarization beam splitter, or other elements used in the control of the polarization beam splitter, age.
摘要翻译： 本发明提供一种控制光偏振分束器的系统，装置和方法。 偏振分束器的光输出的一部分被转换成相应的电信号。 然后，电信号经由反馈回路作为控制信号提供给偏振分束器。 偏振分束器响应于接收到的控制信号控制偏振分束器的光输出的特性。 例如，可以通过热光学或电光学来控制特性。 控制系统可以在一段时间内使用，以将特性保持在期望值，例如作为偏振分束器的分量或在偏振分束器的控制中使用的其他元件的年龄。
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公开(公告)号：US20090245719A1
公开(公告)日：2009-10-01
申请号：US12058652
申请日：2008-03-28
IPC分类号： G02B6/12
CPC分类号： G02B6/12004 , G02B6/12007 , G02B6/12016 , G02B6/12019
摘要： Embodiments of the present invention provide systems, devices and methods in which optical reflections are reduced in a photonic integrated circuit. These embodiments include reflection suppression elements which operate to dissipate optical energy that would otherwise provide a source for optical reflections which may impact the operation of one or more devices within the photonic integrated circuit. In particular, within photonic integrated circuits incorporating semiconductor optical amplifiers, embodiments of the present invention include reflection suppression elements which operate to dissipate optical energy preventing the semiconductor optical amplifiers from operating in a gain-clamped mode.
摘要翻译： 本发明的实施例提供了在光子集成电路中减少光学反射的系统，装置和方法。 这些实施例包括反射抑制元件，其操作以耗散光能量，否则光能量可以提供用于光学反射的源，其可影响光子集成电路内的一个或多个器件的操作。 特别地，在包含半导体光放大器的光子集成电路中，本发明的实施例包括反射抑制元件，其用于消散防止半导体光放大器以增益钳位模式操作的光能。
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公开(公告)号：US08849120B2
公开(公告)日：2014-09-30
申请号：US12987671
申请日：2011-01-10
IPC分类号： H04J14/02
CPC分类号： H04J14/0282 , H04J14/0246 , H04J14/025 , H04J14/0265 , H04J14/0298 , H04J2014/0253
摘要： Consistent with the present disclosure, an optical communication system, such as a passive optical network (PON), is provided that includes an optical line terminal (OLT) and a plurality of optical network units (ONUs). The OLT includes a plurality of photonic integrated circuits that have both optical transmitters and receivers provided therein. Accordingly, the OLT may have fewer components and a simpler, more reliable and cost-effective design than a conventional OLT including discrete components. In addition, various ONU configurations are provided that also have a simple design and fewer components. Thus, ONUs consistent with the present disclosure may also have reduced costs.
摘要翻译： 根据本公开，提供了诸如无源光网络（PON）的光通信系统，其包括光线路终端（OLT）和多个光网络单元（ONU）。 OLT包括多个光子集成电路，其具有设置在其中的光发送器和接收器。 因此，OLT可以具有比包括分立组件的常规OLT更少的组件和更简单，更可靠和更具成本效益的设计。 另外，提供了也具有简单设计和较少组件的各种ONU配置。 因此，与本公开一致的ONU也可以降低成本。
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公开(公告)号：US08582975B2
公开(公告)日：2013-11-12
申请号：US12987449
申请日：2011-01-10
IPC分类号： H04B10/00
CPC分类号： H04J14/0282 , H04J14/0246 , H04J14/025 , H04J14/0265 , H04J14/0298 , H04J2014/0253
摘要： Consistent with the present disclosure, an optical communication system, such as a passive optical network (PON), is provided that includes an optical line terminal (OLT) and a plurality of optical network units (ONUs). The OLT includes a plurality of photonic integrated circuits that have both optical transmitters and receivers provided therein. Accordingly, the OLT may have fewer components and a simpler, more reliable and cost-effective design than a conventional OLT including discrete components. In addition, various ONU configurations are provided that also have a simple design and fewer components. Thus, ONUs consistent with the present disclosure may also have reduced costs.
摘要翻译： 根据本公开，提供了诸如无源光网络（PON）的光通信系统，其包括光线路终端（OLT）和多个光网络单元（ONU）。 OLT包括多个光子集成电路，其具有设置在其中的光发送器和接收器。 因此，OLT可以具有比包括分立组件的常规OLT更少的组件和更简单，更可靠和更具成本效益的设计。 另外，提供了也具有简单设计和较少组件的各种ONU配置。 因此，与本公开一致的ONU也可以降低成本。
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公开(公告)号：US08260136B2
公开(公告)日：2012-09-04
申请号：US12572208
申请日：2009-10-01
CPC分类号： G02B6/12004 , G02B6/12009 , G02B6/264 , G02B2006/12126 , H04J14/02 , H04J14/06
摘要： Consistent with the present disclosure, a polarization multiplexed optical signal having optical signals with both TE and TM polarizations is supplied to an input of a polarization beam splitter (PBS). The PBS includes a first output that supplies TE polarized optical signals and a second output supplies TM polarized optical signals. A first polarizer is coupled to the second output of the PBS to pass the TM polarized optical signals, while rejecting light having other polarizations, such as the TE polarization. A rotator then rotates the light output from the first polarizer, so that such light has a TE polarization. A second polarizer is coupled to the rotator to filter light having a polarization other than the TE polarization. In addition, a third polarizer is coupled to the first output of the PBS in order to filter or block any TM light, for example, that may be output from the PBS with the TE polarized signal. Accordingly, the optical signals in the polarization multiplexed optical signal are effectively filtered, and some are rotated so that each has the same, e.g., TE polarization. Moreover, each optical signal is substantially free from light having extraneous polarizations and may be supplied to an optical hybrid circuit. Data carried by such optical signals may thus be reliably recovered.
摘要翻译： 根据本公开，具有TE和TM偏振两者的光信号的偏振复用光信号被提供给偏振分束器（PBS）的输入端。 PBS包括提供TE偏振光信号的第一输出，第二输出提供TM偏振光信号。 第一偏振器耦合到PBS的第二输出以通过TM偏振光信号，同时抑制具有其它极化的光，例如TE偏振。 旋转器然后旋转从第一偏振器输出的光，使得这种光具有TE偏振。 第二偏振器耦合到旋转器以对具有除了TE极化之外的极化的光进行滤波。 此外，第三偏振器耦合到PBS的第一输出，以便滤波或阻挡例如可以用TE偏振信号从PBS输出的TM光。 因此，偏振复用光信号中的光信号被有效地滤波，并且有些被旋转，使得每个具有相同的例如TE偏振。 此外，每个光信号基本上没有具有外来极化的光，并且可以被提供给光混合电路。 因此可以可靠地恢复由这种光信号携带的数据。
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公开(公告)号：US08160405B2
公开(公告)日：2012-04-17
申请号：US12646340
申请日：2009-12-23
CPC分类号： G02B6/126 , G02B6/27 , G02B6/2706 , G02B6/2766
摘要： Consistent with the present disclosure, a non-adiabatic polarization rotator is provided that can rotate the polarization of an incoming over a relatively short length. Light is supplied to the polarization rotator via a polarizer, which insures that the optical input to the polarization polarization rotator has a desired polarization. Preferably, the polarization rotator has a structure that is readily implemented with semiconductor materials and can be fabricated with known processing techniques. In addition, the polarization rotator and polarizer may include similar materials and/or layers, such that both may be readily integrated on a common substrate, such as an indium phosphide (InP) substrate.
摘要翻译： 根据本公开，提供了一种非绝热的偏振旋转器，其可以使相对较短长度的进入的偏振旋转。 通过偏振器将光提供给偏振旋转器，这确保了偏振旋转器的光输入具有期望的偏振。 优选地，偏振旋转器具有易于用半导体材料实现的结构，并且可以用已知的处理技术制造。 此外，偏振旋转器和偏振器可以包括相似的材料和/或层，使得两者可以容易地集成在公共衬底上，例如磷化铟（InP）衬底。
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公开(公告)号：US20110293280A1
公开(公告)日：2011-12-01
申请号：US12790778
申请日：2010-05-28
CPC分类号： H04J14/02 , G02F1/3136 , G02F2201/58 , G02F2203/60 , H04J14/06
摘要： The present invention provides a system, apparatus and method to control an optical polarization beam splitter. A portion of an optical output of the polarization beam splitter is converted into a corresponding electrical signal. The electrical signal is then provided to the polarization beam splitter as a control signal via a feedback loop. The polarization beam splitter controls a characteristic of the optical output of the polarization beam splitter in response to the received control signal. The characteristic, for example, may be controlled through thermo-optically or electro-optically. The control system may be used over a period of time to maintain the characteristic at a desired value, for example as the components of the polarization beam splitter, or other elements used in the control of the polarization beam splitter, age.
摘要翻译： 本发明提供一种控制光偏振分束器的系统，装置和方法。 偏振分束器的光输出的一部分被转换成相应的电信号。 然后，电信号经由反馈回路作为控制信号提供给偏振分束器。 偏振分束器响应于接收到的控制信号控制偏振分束器的光输出的特性。 例如，可以通过热光学或电光学来控制特性。 控制系统可以在一段时间内使用，以将特性保持在期望值，例如作为偏振分束器的分量或在偏振分束器的控制中使用的其它元件的年龄。
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公开(公告)号：US20100322631A1
公开(公告)日：2010-12-23
申请号：US12816599
申请日：2010-06-16
IPC分类号： H04J14/06
CPC分类号： G02B6/12004 , G02B6/12009 , G02B6/264 , G02B2006/12126 , H04J14/02 , H04J14/06
摘要： A coherent optical receiver circuit is disclosed in which various components of the optical receiver may be provided or integrated, in one example, on a common substrate. Further integration is achieved by incorporating various optical demultiplexer designs that are relatively compact and conserve space on the surface of the substrate. The optical receiver circuit may be used to demultiplex quadrature phase shift keying (QPSK) optical signals.
摘要翻译： 公开了一种相干光接收器电路，其中在一个示例中，可以在公共基板上提供或集成光接收器的各种部件。 通过结合相对紧凑的各种光解复用器设计并节省衬底表面上的空间来实现进一步的集成。 光接收机电路可用于解复用正交相移键控（QPSK）光信号。
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公开(公告)号：US06758610B2
公开(公告)日：2004-07-06
申请号：US10016473
申请日：2001-12-10
申请人： Mehrdad Ziari , Robert J. Lang , Tanya K. Oleskevich , Vivek Agrawal , Ashok P. Kanjamala , Donald C. Hargreaves , Harrison L. Ransom , David Dawson , Radhakrishnan L. Nagarajan
发明人： Mehrdad Ziari , Robert J. Lang , Tanya K. Oleskevich , Vivek Agrawal , Ashok P. Kanjamala , Donald C. Hargreaves , Harrison L. Ransom , David Dawson , Radhakrishnan L. Nagarajan
IPC分类号： G02B642
CPC分类号： G02B6/4225 , G02B6/4201 , G02B6/4238 , G02B6/4257 , G02B6/4267 , G02B6/4268 , H01S5/02248 , H01S5/02284 , H01S5/02446
摘要： An optical connection module attaches an active or passive optical component to a substrate and aligns the optical component with a first laser. The optical connection module includes a fiber submount that is attached to the substrate and that includes a thermally insulating material having a thickness greater than 20 micrometers. The optical component is soldered to the fiber submount using heat from a second laser. A laser submount is attached to the substrate. The first laser is attached to the laser submount. A fiber bonding pad is located between the thermally insulating material and the optical component. The thermally insulating material and the fiber bonding pad promote lateral heat transfer and limit vertical heat transfer to the substrate during soldering. The thermally insulating material can be integrally formed in the substrate by flame hydrolysis or by anodic bonding.
摘要翻译： 光学连接模块将有源或无源光学部件附接到基板并将光学部件与第一激光器对准。 光学连接模块包括光纤基座，其附接到基板并且包括厚度大于20微米的绝热材料。 使用来自第二激光器的热量将光学部件焊接到光纤基座。 激光基座安装在基板上。 第一个激光器连接到激光器底座。 光纤接合焊盘位于绝热材料和光学部件之间。 绝热材料和纤维粘合垫促进横向热传递，并限制在焊接期间垂直的热传递到基底。 绝热材料可以通过火焰水解或通过阳极接合一体地形成在基板中。
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公开(公告)号：US08269297B2
公开(公告)日：2012-09-18
申请号：US12646558
申请日：2009-12-23
申请人： Radhakrishnan L. Nagarajan , Andrew G. Dentai , Scott Corzine , Steven Nguyen , Vikrant Lal , Jacco L. Pleumeekers , Peter W. Evans
发明人： Radhakrishnan L. Nagarajan , Andrew G. Dentai , Scott Corzine , Steven Nguyen , Vikrant Lal , Jacco L. Pleumeekers , Peter W. Evans
IPC分类号： H01L31/0232
CPC分类号： H01L31/105 , G02B6/12004 , G02B6/12007 , G02B6/2813 , G02B6/42 , H01L31/02019
摘要： Consistent with the present disclosure, a current blocking layer is provided between output waveguides carrying light to be sensed by the photodiodes in a balanced photodetector, and the photodiodes themselves. Preferably, the photodiodes are provided above the waveguides and sense light through evanescently coupling with the waveguides. In addition, the current blocking layer may include alternating p and n-type conductivity layers, such that, between adjacent ones of such layers, a reverse biased pn-junction is formed. The pn-junctions, therefore, limit the amount of current flowing from one photodiode of the balanced detector to the other, thereby improving performance.
摘要翻译： 与本公开一致，在平衡光电检测器中的由光电二极管传送的光的输出波导之间提供电流阻挡层，以及光电二极管本身。 优选地，光电二极管设置在波导上方并且通过与波导衰减耦合来感测光。 此外，电流阻挡层可以包括交替的p型和n型导电层，使得在相邻的这些层之间形成反向偏置的pn结。 因此，pn结限制了从平衡检测器的一个光电二极管流到另一个的电流量，从而提高性能。
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