公开(公告)号：US06853671B2

公开(公告)日：2005-02-08

申请号：US09967445

申请日：2001-09-28

申请人： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu ,  Richard Jones

发明人： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu ,  Richard Jones

IPC分类号： G02B6/12 ,  G02B6/124 ,  G02F1/01 ,  G02F1/025 ,  H01S3/08

CPC分类号： G02B6/124 ,  G02B2006/12097 ,  G02B2006/12135 ,  G02F1/0147 ,  G02F1/025 ,  G02F2201/307

摘要： A semiconductor-based laser tuning method and apparatus. In one aspect of the present invention, an apparatus according to an embodiment of the present invention includes a gain medium disposed in a semiconductor substrate. A laser cavity is disposed in the semiconductor substrate and is optically coupled to the gain medium. A first reflector defines one end of the laser cavity. The first reflector includes a first tunable Bragg grating disposed in the semiconductor substrate. The first tunable Bragg grating includes a first plurality of silicon and polysilicon interfaces along the semiconductor substrate such that there is a first plurality of perturbations of a refractive index along the Bragg grating. The first tunable Bragg grating selectively reflects light having a tunable center wavelength so as to emit light through stimulated emission having the tunable center wavelength in the laser cavity. A second reflector defines an other end of the laser cavity.

摘要翻译： 一种基于半导体的激光调谐方法和装置。 在本发明的一个方面中，根据本发明实施例的装置包括设置在半导体衬底中的增益介质。 激光腔设置在半导体衬底中并与光学耦合到增益介质。 第一反射器限定激光腔的一端。 第一反射器包括设置在半导体衬底中的第一可调谐布拉格光栅。 第一可调谐布拉格光栅包括沿着半导体衬底的第一多个硅和多晶硅界面，使得沿着布拉格光栅具有第一多个折射率扰动。 第一可调谐布拉格光栅选择性地反射具有可调谐中心波长的光，以便通过激光腔中具有可调中心波长的受激发射发光。 第二反射器限定激光腔的另一端。

公开(公告)号：US06947616B2

公开(公告)日：2005-09-20

申请号：US10335765

申请日：2003-01-02

申请人： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu

发明人： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu

IPC分类号： G02B6/12 ,  G02B6/124 ,  G02F1/01 ,  G02F1/025 ,  G02F1/295

CPC分类号： G02F1/025 ,  G02B6/124 ,  G02B2006/12097 ,  G02B2006/12135 ,  G02F1/0147 ,  G02F2201/307

摘要： A tunable Bragg grating method and apparatus. In one aspect of the present invention, a method according to an embodiment of the present invention includes directing an optical beam into a first end of an optical path having the first end and a second end disposed in a semiconductor substrate, reflecting a first portion of the optical beam having a first center wavelength back out from the first end of the optical path and tuning the optical path to reflect a second portion of the optical beam having a second center wavelength back out from the first end of the optical path. In one embodiment, the Bragg grating is tuned with a heater used to adjust a temperature of the semiconductor substrate. In another embodiment, charge in charge modulated regions along the optical path is modulated to tune the Bragg grating.

摘要翻译： 可调谐布拉格光栅方法和装置。 在本发明的一个方面，根据本发明实施例的方法包括将光束引导到具有第一端的光路的第一端和设置在半导体衬底中的第二端，反射第一部分 所述光束具有从光路的第一端返回的第一中心波长并调谐光路以将具有第二中心波长的光束的第二部分从光路的第一端反射出去。 在一个实施例中，布拉格光栅用用于调节半导体衬底的温度的加热器调谐。 在另一个实施例中，沿着光路的电荷调制区域的电荷被调制以调谐布拉格光栅。

公开(公告)号：US06856732B2

公开(公告)日：2005-02-15

申请号：US09967365

申请日：2001-09-28

申请人： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu ,  Andrew C. Alduino ,  Ling Liao

发明人： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu ,  Andrew C. Alduino ,  Ling Liao

IPC分类号： G02B6/12 ,  G02B6/124 ,  G02F1/01 ,  G02F1/025 ,  G02B6/42

CPC分类号： G02B6/124 ,  G02B2006/12097 ,  G02B2006/12135 ,  G02F1/0147 ,  G02F1/025 ,  G02F2201/307

摘要： A semiconductor-based tunable add/drop method and apparatus. In one aspect of the present invention, a method according to an embodiment of the present invention includes splitting a first optical beam having multiple wavelengths into second and third optical beams with a first 3 dB optical coupler disposed in a semiconductor substrate. Portions of the second and third optical beams having a tunable wavelength are reflected back to the first 3 dB optical coupler with first and second pluralities of silicon and polysilicon interfaces, respectively, disposed along the semiconductor substrate. In another embodiment, the portions of the second and third optical beams having a tunable wavelength are reflected back to the first 3 dB optical coupler with first and second pluralities of modulated charged regions. Portions of the second and third optical beams not reflected are directed to a second 3 dB optical coupler disposed in the semiconductor substrate. The portions of the second and third optical beams not reflected are combined into a fourth optical beam with the second 3 dB optical coupler.

摘要翻译： 一种基于半导体的可调加/减方法和装置。 在本发明的一个方面中，根据本发明实施例的方法包括：将具有多个波长的第一光束分成第二和第三光束，其中第一个3dB光耦合器设置在半导体衬底中。 具有可调谐波长的第二和第三光束的部分被分别沿着半导体衬底设置的第一和第二多个硅和多晶硅接口反射回到第一3d分量光耦合器。 在另一个实施例中，具有可调谐波长的第二和第三光束的部分被第一和第二多个调制带电区域反射回到第一3d分量光耦合器。 未反射的第二和第三光束的部分被引导到设置在半导体衬底中的第二3dB光耦合器。 未反射的第二和第三光束的部分与第二3dB光耦合器组合成第四光束。

公开(公告)号：US07088877B2

公开(公告)日：2006-08-08

申请号：US09881218

申请日：2001-06-13

申请人： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu

发明人： Ansheng Liu ,  Mario J. Paniccia ,  Remus Nicolaescu

IPC分类号： G02F1/295

CPC分类号： G02F1/025 ,  G02B6/124 ,  G02B2006/12097 ,  G02B2006/12135 ,  G02F1/0147 ,  G02F2201/307

摘要： A tunable Bragg grating method and apparatus. In one aspect of the present invention, a method according to an embodiment of the present invention includes directing an optical beam into a first end of an optical path having the first end and a second end disposed in a semiconductor substrate, reflecting a first portion of the optical beam having a first center wavelength back out from the first end of the optical path and tuning the optical path to reflect a second portion of the optical beam having a second center wavelength back out from the first end of the optical path. In one embodiment, the Bragg grating is tuned with a heater used to adjust a temperature of the semiconductor substrate. In another embodiment, charge in charge modulated regions along the optical path is modulated to tune the Bragg grating.

公开(公告)号：US07116847B2

公开(公告)日：2006-10-03

申请号：US11205409

申请日：2005-08-16

申请人： Ansheng Liu ,  Richard Jones ,  Mario J. Paniccia ,  Graham T. Reed

发明人： Ansheng Liu ,  Richard Jones ,  Mario J. Paniccia ,  Graham T. Reed

IPC分类号： G02F1/295

CPC分类号： G02F1/025 ,  G02F2203/06

摘要： An apparatus and method for modulating a phase of optical beam independent of polarization. In one embodiment, an apparatus according to embodiments of the present invention includes a first region of an optical waveguide disposed in semiconductor material, the first region having a first conductivity type, and a second region of the optical waveguide disposed in the semiconductor material, the second region having a second conductivity type opposite to the first conductivity type. The apparatus also includes a substantially V shaped insulating region disposed between the first and second regions of the optical waveguide, wherein a vertex of the substantially V shaped insulating region forms an intersecting line that is substantially parallel to an optical path of an optical beam to be directed through the optical waveguide.

公开(公告)号：US07006717B2

公开(公告)日：2006-02-28

申请号：US10775737

申请日：2004-02-10

申请人： Ansheng Liu ,  Richard Jones ,  Mario J. Paniccia ,  Graham T. Reed

发明人： Ansheng Liu ,  Richard Jones ,  Mario J. Paniccia ,  Graham T. Reed

IPC分类号： G02F1/295

CPC分类号： G02F1/025 ,  G02F2203/06

摘要： An apparatus and method for modulating a phase of optical beam independent of polarization. In one embodiment, an apparatus according to embodiments of the present invention includes a first region of an optical waveguide disposed in semiconductor material, the first region having a first conductivity type, and a second region of the optical waveguide disposed in the semiconductor material, the second region having a second conductivity type opposite to the first conductivity type. The apparatus also includes a substantially V shaped insulating region disposed between the first and second regions of the optical waveguide, wherein a vertex of the substantially V shaped insulating region forms an intersecting line that is substantially parallel to an optical path of an optical beam to be directed through the optical waveguide.

摘要翻译： 用于独立于偏振调制光束的相位的装置和方法。 在一个实施例中，根据本发明的实施例的装置包括设置在半导体材料中的光波导的第一区域，具有第一导电类型的第一区域和设置在半导体材料中的光波导的第二区域， 第二区域具有与第一导电类型相反的第二导电类型。 该装置还包括设置在光波导的第一和第二区域之间的大致V形的绝缘区域，其中大致V形绝缘区域的顶点形成基本上平行于光束的光路的交叉线， 引导通过光波导。

公开(公告)号：US07257283B1

公开(公告)日：2007-08-14

申请号：US11480610

申请日：2006-06-30

申请人： Ansheng Liu ,  Mario J. Paniccia ,  Richard Jones

发明人： Ansheng Liu ,  Mario J. Paniccia ,  Richard Jones

IPC分类号： G02B6/12 ,  G02B6/28

CPC分类号： G02B6/12019 ,  G02B6/12004 ,  G02F1/2257 ,  H01S5/021 ,  H01S5/02248 ,  H01S5/1032 ,  H01S5/141 ,  H01S5/4087

摘要： An apparatus and method providing a plurality of modulated optical beams from a single layer of semiconductor material. For one example, an apparatus includes a plurality of optical waveguides disposed in a single layer of semiconductor material. Each one of the plurality of optical waveguides includes an optical cavity defined along the optical waveguide. A single bar of gain medium material adjoining the single layer of semiconductor material across the plurality of optical waveguides is included. The gain medium-semiconductor material interface is defined along each of the plurality of optical waveguides. A plurality of optical modulators is disposed in the single layer of semiconductor material. Each one of the plurality of optical modulators is optically coupled to a respective one of the plurality of optical waveguides to modulate a respective optical beam directed from the optical cavity.

摘要翻译： 一种从单层半导体材料提供多个调制光束的装置和方法。 作为一个示例，设备包括设置在单层半导体材料中的多个光波导。 多个光波导中的每一个包括沿着光波导限定的光学腔。 包括与多个光波导相邻的单层半导体材料的单条增益介质材料。 沿着多个光波导中的每一个限定增益介质半导体材料界面。 多个光学调制器设置在单层半导体材料中。 多个光学调制器中的每一个光学耦合到多个光波导中的相应的一个光波导，以调制从光腔指向的相应光束。

公开(公告)号：US06751002B2

公开(公告)日：2004-06-15

申请号：US10140443

申请日：2002-05-06

申请人： Shlomo Ovadia ,  Ansheng Liu ,  Remus Nicolaescu

发明人： Shlomo Ovadia ,  Ansheng Liu ,  Remus Nicolaescu

IPC分类号： G02F103

CPC分类号： G02B6/12007 ,  G02B6/2706 ,  G02B6/274 ,  G02B6/2766 ,  G02B6/278 ,  G02B6/29355 ,  G02B2006/12097 ,  G02B2006/12107 ,  G02F1/0136 ,  H04B10/532

摘要： An optical polarization modulator (OPM) for use in an optical communication system includes two polarizing beam splitters (PBSs) and an adjusting stage coupled between the PBSs. One PBS receives an input optical signal with an arbitrary state of polarization (SOP) and splits it into its TE and TM components. The adjusting stage can change the amplitude and/or relative phase between the TE and TM components to help achieve a desired state of polarization (SOP). The ACS and PCS may include MZIs to both adjust the amplitude and the relative phase difference between the TE and TM components. Alternatively, the OPM may include an amplifier and a phase shifter for each component. The second PBS combines the adjusted components to form the output signal with a desired SOP. Another embodiment of the OPM includes an Y-junction coupler, two plasma optical-effect silicon phase shifter stages, a 2×2 3-dB coupler and a PBS. The Y-junction coupler splits the incoming optical signal into two equal portions (containing TM and TE components). The first stage adjusts the relative phase between the portions. The 2×2 3-dB coupler allows the phase adjusted portions to interact to adjust the amplitude. The second stage adjusts the phase difference between the two portions for TE and TM components and outputs the adjusted portions to the PBS via polarization maintaining fibers. The PBS then combines the TE component of one portion with the TM component of the other portion to form an output signal with the desired SOP.

摘要翻译： 用于光通信系统的光偏振调制器（OPM）包括两个偏振分束器（PBS）和耦合在PBS之间的调节级。 一个PBS接收具有任意偏振状态（SOP）的输入光信号，并将其分解成其TE和TM分量。 调整阶段可以改变TE和TM分量之间的幅度和/或相对相位，以帮助实现期望的极化状态（SOP）。 ACS和PCS可以包括MZI来调节TE和TM组件之间的振幅和相对相位差。 或者，OPM可以包括用于每个组件的放大器和移相器。 第二PBS组合调整后的组件以形成具有所需SOP的输出信号。 OPM的另一实施例包括Y结耦合器，两个等离子体光效硅移相器级，2x2 3-dB耦合器和PBS。 Y结耦合器将输入的光信号分成两个相等的部分（包含TM和TE组件）。 第一阶段调整部分之间的相对相位。 2x2 3 dB耦合器允许相位调整的部分相互作用以调整振幅。 第二级调节TE和TM分量的两部分之间的相位差，并通过偏振保持光纤将调整后的部分输出到PBS。 然后，PBS将一部分的TE分量与另一部分的TM分量组合以形成具有所需SOP的输出信号。

公开(公告)号：US06788837B2

公开(公告)日：2004-09-07

申请号：US09819520

申请日：2001-03-27

申请人： Ansheng Liu ,  Mario J. Paniccia

发明人： Ansheng Liu ,  Mario J. Paniccia

IPC分类号： G02B626

CPC分类号： G02B6/12007 ,  G02B6/2813 ,  G02B6/29352 ,  G02B6/29386 ,  H04J14/0208 ,  H04J14/021

摘要： An optical interleaving switching method and apparatus. In one aspect of the present invention, the disclosed apparatus includes first and second multi-mode interference (MMI) coupling devices disposed in a semiconductor substrate. Each of the first and second MMI coupling devices include first and second inputs and first and second outputs. A first optical coupler having a first optical path length is included. The first output of the first MMI coupling device is optically coupled to the first input of the second MMI coupling device through the first optical coupler. A second optical coupler having a second optical path length is also included. The second output of the first MMI coupling device is optically coupled to the second input of the second MMI coupling device through the second optical coupler. The first optical path length of the first optical coupler is different than the second optical path length of the second optical coupler. In another aspect of the invention, a 2×2 optical switch is optically coupled to the inputs and/or outputs of the first and/or second MMI coupling devices providing multiplexing/demultiplexing and switching functionality for multi-channel optical input and/or output beams.

摘要翻译： 一种光交错切换方法和装置。 在本发明的一个方面，所公开的设备包括设置在半导体衬底中的第一和第二多模干涉（MMI）耦合器件。 第一和第二MMI耦合装置中的每一个包括第一和第二输入以及第一和第二输出。 包括具有第一光路长度的第一光耦合器。 第一MMI耦合器件的第一输出通过第一光耦合器光耦合到第二MMI耦合器件的第一输入端。 还包括具有第二光程长度的第二光耦合器。 第一MMI耦合装置的第二输出通过第二光耦合器光耦合到第二MMI耦合装置的第二输入端。 第一光耦合器的第一光路长度不同于第二光耦合器的第二光路长度。 在本发明的另一方面，2x2光开关光学耦合到第一和/或第二MMI耦合器件的输入和/或输出，为多通道光输入和/或输出光束提供复用/解复用和切换功能。

公开(公告)号：US06690036B2

公开(公告)日：2004-02-10

申请号：US09811171

申请日：2001-03-16

申请人： Ansheng Liu ,  Mario J. Paniccia ,  Michael T. Morse ,  Dmitri E. Nikonov ,  Yi Ding

发明人： Ansheng Liu ,  Mario J. Paniccia ,  Michael T. Morse ,  Dmitri E. Nikonov ,  Yi Ding

IPC分类号： H01L2724

CPC分类号： G02B6/122 ,  G02B6/2813 ,  G02F1/025 ,  G02F1/2955 ,  G02F2001/217

摘要： An optical steering method and apparatus. In one aspect of the present invention, the disclosed apparatus includes a multi-mode interference (MMI) device disposed in a semiconductor substrate. The MMI device includes an input and a plurality of outputs Each one of the plurality of outputs of the MMI device is optically coupled to the input of the MMI device. A phase array is disposed in the semiconductor substrate. The phase array includes a plurality of inputs and a plurality of outputs. The plurality of inputs of the phase array optically are coupled to the plurality of outputs of the phase array. The phase array is coupled to control relative phase differences between optical beams output by each one of the plurality of outputs of the phase array.

摘要翻译： 一种光学转向方法和装置。 在本发明的一个方面，所公开的装置包括设置在半导体衬底中的多模干涉（MMI）装置。 MMI设备包括输入和多个输出MMI设备的多个输出中的每一个光学耦合到MMI设备的输入。 相位阵列设置在半导体衬底中。 相位阵列包括多个输入和多个输出。 光学上的相位阵列的多个输入耦合到相位阵列的多个输出端。 相位阵列被耦合以控制由相位阵列的多个输出中的每一个输出的光束之间的相对相位差。