公开(公告)号：US06850364B2

公开(公告)日：2005-02-01

申请号：US10170055

申请日：2002-06-12

申请人： Ping Xie ,  R. Brad Bettman ,  Haisheng Rong ,  Kevin Zhang ,  Yalan Mao ,  Wei Wang ,  Simon Yuanxiang Wu

发明人： Ping Xie ,  R. Brad Bettman ,  Haisheng Rong ,  Kevin Zhang ,  Yalan Mao ,  Wei Wang ,  Simon Yuanxiang Wu

IPC分类号： G02B6/34 ,  H04J14/02 ,  H04Q11/00 ,  G02B5/30

CPC分类号： G02B6/272 ,  G02B6/29352 ,  H04J14/02 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/0075

摘要： An optical device that can be used in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. In an embodiment of the invention the optical device includes a fundamental filter cell, a retro reflector and a splitter/combiner. The fundamental filter cell filters optical signals propagating on each of two legs of an optical loop which intersects the fundamental filter cell. The fundamental filter cell operates as a full waveplate to the odd set of channels and a half waveplate to the even set of channels on a selected one of the two legs and as a half waveplate to the odd set of channels and a full waveplate to the even set of channels on a remaining one of the two legs. The retro reflector optically couples with the fundamental filter cell to reflect the optical signals from one of the two legs to an other of the two legs to form the optical loop. The splitter/combiner optically couples between the fundamental filter cell and the retro reflector to split or combine the odd set of channels and the even set of channels depending on the propagation direction of the optical signals along the optical loop.

摘要翻译： 可用于包括光复用器/解复用器和光路由器在内的一系列电信应用中的光学装置。 光学装置包括光学处理回路，其允许通过单个物理过滤级来实现多级性能特性。 在环路的第一腿部和第二腿部上的光学处理是不对称的，从而通过在第一和第二腿部上实现互补色散而提高光学信号的完整性。 在本发明的一个实施例中，光学装置包括基本滤波器单元，回射反射器和分离器/组合器。 基本滤波器单元滤波在与基波滤波器单元相交的光环路的两条支路上传播的光信号。 基本滤波器单元作为完整波片操作到奇数通道组，并且将半波片作用到两个选定的一个通道上的偶数通道组，以及半波片到奇数通道组，并将完整波片作为 甚至在两条腿中剩下的一条通道上设置通道。 后向反射器与基本滤波器单元光学耦合以将来自两个腿中的一个的光学信号反射到两个腿中的另一个，以形成光学环路。 分路器/组合器在基本滤波器单元和回射反射器之间光耦合，以根据沿着光学环路的光信号的传播方向将奇数组信道和偶数组信道分离或组合。

公开(公告)号：US09028157B2

公开(公告)日：2015-05-12

申请号：US13976377

申请日：2011-12-15

申请人： Yun-chung Na ,  Haisheng Rong

发明人： Yun-chung Na ,  Haisheng Rong

IPC分类号： G02B6/36 ,  G02B6/34 ,  G02B6/12 ,  G02B6/122 ,  G02B6/124 ,  G02B6/132 ,  G02B6/136 ,  G02B6/42

CPC分类号： G02B6/12 ,  G02B6/1228 ,  G02B6/124 ,  G02B6/132 ,  G02B6/136 ,  G02B6/4204 ,  G02B6/4214

摘要： Photonic integrated circuit (PIC) chips with backside vertical optical coupler and packaging into an optical transmitter/receiver. A grating-based backside vertical optical coupler functions to couple light to/from a plane in the PIC chip defined by thin film layers through a bulk thickness of the PIC chip substrate to emit/collect via a backside surface of the PIC chip where it is to be coupled by an off-chip component, such as an optical fiber. Embodiments of a grating-based backside vertical optical coupler include a grating coupler with a grating formed in a topside surface of the thin film A reflector is disposed over the grating coupler to reflect light emitted from the grating coupler through the substrate to emit from the backside of the PIC chip or to reflect light collected from the backside of the PIC chip through the substrate and to the grating coupler.

摘要翻译： 具有背面垂直光耦合器的光电集成电路（PIC）芯片，并封装成光发射机/接收机。 基于光栅的背面垂直光耦合器用于将光与薄膜层定义的PIC芯片中的平面耦合通过PIC芯片基板的体积厚度，以经由PIC芯片的背面发射/收集， 由诸如光纤的片外部件耦合。 基于光栅的背面垂直光耦合器的实施例包括具有形成在薄膜的顶侧表面上的光栅的光栅耦合器A反射器设置在光栅耦合器上方以将从光栅耦合器发射的光反射通过衬底从背面发射 或者通过基板和光栅耦合器反射从PIC芯片背面收集的光。

公开(公告)号：US07840098B2

公开(公告)日：2010-11-23

申请号：US11039985

申请日：2005-01-20

申请人： Haisheng Rong

发明人： Haisheng Rong

IPC分类号： G02F1/01 ,  G02B6/10

CPC分类号： G02F1/3526 ,  G02F1/025 ,  G02F2001/0156

摘要： A variable optical power limiter is disclosed. An apparatus according to aspects of the present invention includes an optical waveguide disposed in semiconductor material. An optical beam is to be directed through the optical waveguide. The optical beam is to generate free carriers in the optical waveguide via two-photon absorption in response to an input power level of the optical beam. A diode structure is disposed in the optical waveguide. The diode structure is coupled to be biased to control free carrier lifetimes of the free carriers in the optical waveguide to set an output power of the optical beam to a clamped output power level in response to the bias of the diode structure.

摘要翻译： 公开了一种可变光功率限制器。 根据本发明的方面的装置包括设置在半导体材料中的光波导。 光束将被引导通过光波导。 光束是响应于光束的输入功率电平，通过双光子吸收在光波导中产生自由载流子。 二极管结构设置在光波导中。 二极管结构被耦合以被偏置以控制光波导中的自由载流子的自由载流子寿命，以响应于二极管结构的偏置将光束的输出功率设置为钳位的输出功率电平。

公开(公告)号：US20080240651A1

公开(公告)日：2008-10-02

申请号：US11729080

申请日：2007-03-27

申请人： Haisheng Rong ,  Simon Ayotte ,  Mario Paniccia

发明人： Haisheng Rong ,  Simon Ayotte ,  Mario Paniccia

IPC分类号： G02B6/26

CPC分类号： G02F1/3538 ,  G02B2006/12061 ,  H04B10/2531

摘要： In the absence of using any chromatic dispersion compensation technique, it may be difficult to detect the transmitted data over long distances at the receiving end. Embodiments utilize the optical phase conjugation (OPC) property in silicon waveguides to compensate chromatic dispersion effect in optical fibers.

摘要翻译： 在不使用任何色散补偿技术的情况下，可能难以在接收端长距离地检测发送的数据。 实施例利用硅波导中的光学相位共轭（OPC）特性来补偿光纤中的色散效应。

公开(公告)号：US20070171514A1

公开(公告)日：2007-07-26

申请号：US11336285

申请日：2006-01-20

申请人： Haisheng Rong ,  Mario Paniccia

发明人： Haisheng Rong ,  Mario Paniccia

IPC分类号： G02F1/35 ,  G02F2/02

CPC分类号： G02F1/353 ,  G02F1/025 ,  G02F1/3536 ,  G02F2201/063 ,  G02F2202/105

摘要： A semiconductor-based all optical wavelength converter is disclosed. An apparatus according to aspects of the present invention includes an optical waveguide disposed in semiconductor material. An optical pump source is optically coupled to direct an optical pump beam having a first wavelength into the optical waveguide. The optical waveguide is further optically coupled to receive an input optical beam having a second wavelength. The optical waveguide is optically coupled to generate an output optical beam having a third wavelength in response to the optical pump beam and the input optical beam in the optical waveguide. A diode structure is disposed in the optical waveguide. The diode structure includes at least P and N regions. The diode structure is biased to generate an electric field to remove free carriers from an optical path through the optical waveguide generated in response to two photon absorption in the optical waveguide.

摘要翻译： 公开了一种基于半导体的全光波长转换器。 根据本发明的方面的装置包括设置在半导体材料中的光波导。 光泵浦光源被光耦合以将具有第一波长的光泵浦光引导到光波导中。 光波导进一步光耦合以接收具有第二波长的输入光束。 光波导被光学耦合以响应于光学波束和光波导中的输入光束而产生具有第三波长的输出光束。 二极管结构设置在光波导中。 二极管结构至少包括P和N区域。 二极管结构被偏置以产生电场，以便通过响应于光波导中的两个光子吸收而产生的光波导从光路中去除自由载流子。

公开(公告)号：US20060126986A1

公开(公告)日：2006-06-15

申请号：US11007858

申请日：2004-12-09

申请人： Ansheng Liu ,  Mario Paniccia ,  Haisheng Rong

发明人： Ansheng Liu ,  Mario Paniccia ,  Haisheng Rong

IPC分类号： G02F1/01

CPC分类号： H04B10/505 ,  G02F1/2257 ,  G02F1/3515 ,  G02F1/3526

摘要： A fast optical modulator or switch with reduced optical loss is disclosed. An apparatus according to aspects of the present invention includes an optical splitter disposed in a semiconductor material. An optical beam having a first wavelength is split by the optical splitter into first and second portions. First and second optical waveguides disposed in the semiconductor material are optically coupled to the optical splitter. The first and second portions of the optical beam are to be directed through the first and second optical waveguides, respectively. The first optical waveguide is also optically coupled to receive a pump optical beam. The pump optical beam has a pump wavelength and a pump power level to amplify and phase shift the first portion of the optical beam of the first wavelength in the first optical waveguide. A diode structure is disposed in the first optical waveguide and is selectively biased to sweep out free carriers from the first optical waveguide generated in response to two photon absorption in the optical waveguide. An optical coupler is disposed in the semiconductor material and is optically coupled to the first and second optical waveguides to combine the first and second portions of the optical beam.

摘要翻译： 公开了一种光损耗降低的快速光调制器或开关。 根据本发明的方面的装置包括设置在半导体材料中的光分路器。 具有第一波长的光束被分光器分成第一和第二部分。 设置在半导体材料中的第一和第二光波导光耦合到光分路器。 光束的第一和第二部分分别被引导通过第一和第二光波导。 第一光波导也被光学耦合以接收泵浦光束。 泵浦光束具有泵浦波长和泵浦功率电平，以放大并相移第一波导中的第一波长的光束的第一部分。 二极管结构设置在第一光波导中，并且被选择性地偏置以从响应于光波导中的两个光子吸收而产生的第一光波导扫出自由载流子。 光耦合器设置在半导体材料中并且光学耦合到第一和第二光波导以组合光束的第一和第二部分。