公开(公告)号：US08705904B2

公开(公告)日：2014-04-22

申请号：US12263471

申请日：2008-11-01

申请人： Fred A. Kish, Jr. ,  Mehrdad Ziari ,  Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Vincent G. Dominic ,  Sanjeev Murthy ,  Alan Nilsson

发明人： Fred A. Kish, Jr. ,  Mehrdad Ziari ,  Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Vincent G. Dominic ,  Sanjeev Murthy ,  Alan Nilsson

IPC分类号： G02B6/12 ,  H04J14/02 ,  H04B10/04 ,  H04B10/12

CPC分类号： G02B6/12004 ,  G02B6/12019 ,  G02B6/4249 ,  H01S5/02248 ,  H01S5/0268 ,  H01S5/4087 ,  H04J14/02

摘要： Consistent with the present disclosure, optical devices are provided along different optical paths in a photonic integrated circuit (PIC). The optical components have different optical losses associated therewith so that optical signals propagating in the optical paths have desired power levels, which may be uniform, for example.

摘要翻译： 根据本公开，光子器件沿着光子集成电路（PIC）中的不同光路提供。 光学部件具有与其相关的不同的光学损耗，使得在光路中传播的光信号具有期望的功率电平，例如可以是均匀的。

公开(公告)号：US07394953B1

公开(公告)日：2008-07-01

申请号：US11734259

申请日：2007-04-11

申请人： Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Peter W. Evans ,  Jacco L. Pleumeekers ,  Mehrdad Ziari

发明人： Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Peter W. Evans ,  Jacco L. Pleumeekers ,  Mehrdad Ziari

IPC分类号： G02B6/34 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/12033 ,  G02B6/12019

摘要： System, devices and methods are described that provide an integrated optical decombiner or optical combiner having both unamplified paths and amplified paths on which power monitoring and control may be located. A preferred multiplexing/demultiplexing optical path through the combiner/decombiner and a corresponding waveguide output/input is identified and optically coupled to a piece of fiber. Temperature control may be provided to tune an arrayed waveguide grating within the combiner/decombiner and minimize wavelength drift therein. Integrated power monitoring may be employed on one or more of the amplified waveguide paths to ensure that a preferred power level or range is maintained on an optical signal.

摘要翻译： 描述了系统，装置和方法，其提供集成光学分解器或光学组合器，其具有可放置功率监视和控制的未放大路径和放大路径。 通过组合器/分解器和对应的波导输出/输入的优选复用/解复用光路被识别并光学耦合到一片光纤。 可以提供温度控制以调谐组合器/分解器内的阵列波导光栅并使其中的波长漂移最小化。 可以在一个或多个放大的波导路径上采用集成功率监视，以确保在光信号上保持优选的功率电平或范围。

公开(公告)号：US07006719B2

公开(公告)日：2006-02-28

申请号：US10385574

申请日：2003-03-10

申请人： Charles H. Joyner ,  Mark J. Missey ,  Radhakrishnan L. Nagarajan ,  Frank H. Peters ,  Mehrdad Ziari ,  Fred A. Kish, Jr.

发明人： Charles H. Joyner ,  Mark J. Missey ,  Radhakrishnan L. Nagarajan ,  Frank H. Peters ,  Mehrdad Ziari ,  Fred A. Kish, Jr.

IPC分类号： G02B6/10 ,  G02B6/12

CPC分类号： G02B6/12011 ,  G02B6/12016 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/132 ,  G02B6/42 ,  G02B2006/12097 ,  G02B2006/12176 ,  H01S5/026 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/1014 ,  H01S5/2213 ,  H01S5/2231 ,  H01S5/227 ,  H01S5/4031 ,  H01S5/4087

摘要： Disclosed are apparatus and methods of reducing insertion loss, passivation, planarization and in-wafer testing of integrated optical components and in-wafer chips in photonic integrated circuits (PICs).

摘要翻译： 公开了减少光子集成电路（PIC）中的集成光学部件和晶片内芯片的插入损耗，钝化，平面化和晶片内测试的装置和方法。

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。

公开(公告)号：US06522796B1

公开(公告)日：2003-02-18

申请号：US09695713

申请日：2000-10-24

申请人： Mehrdad Ziari ,  Edward C. Vail

发明人： Mehrdad Ziari ,  Edward C. Vail

IPC分类号： G02B600

CPC分类号： G02B6/272 ,  G02B6/105 ,  G02B6/2773 ,  G02B6/2786 ,  G02B6/29352 ,  H01S3/094003 ,  H01S3/094096 ,  H01S3/302 ,  H04J14/02 ,  H04J14/06

摘要： A pump source for a fiber Raman amplifier uses multiple lasers to generate high pump power or to generate a pump beam having a tailored spectrum for producing a desired Raman gain spectral profile. Light from two lasers, in mutually orthogonal polarization states directed to a polarization combiner that produces an output having light mixed at the two orthogonal polarization states. A depolarizer depolarizes the output. The depolarizer defines first and second orthogonal polarization modes oriented so that the light output from the polarization combiner in one polarization state excites the first and second polarization modes of the depolarizer equally and the light output from the polarization combiner in the other polarization state also excites the first and second polarization modes of the depolarizer equally.

摘要翻译： 用于光纤拉曼放大器的泵浦源使用多个激光器来产生高泵浦功率或产生具有定制光谱的泵浦光束，以产生所需的拉曼增益光谱分布。 来自两个激光器的光，在相互正交的极化状态中，指向偏振组合器，其产生具有在两个正交偏振状态下混合的光的输出。 去极化器使输出极化。 去偏振器限定定向的第一和第二正交偏振模，使得在一个偏振状态下从偏振组合器输出的光均匀地激发去偏振器的第一和第二偏振模，并且来自偏振组合器在另一个偏振态的输出也激发 去极化器的第一和第二偏振模式相等。

公开(公告)号：US06445723B1

公开(公告)日：2002-09-03

申请号：US09313444

申请日：1999-05-18

申请人： Mehrdad Ziari ,  Scott D. DeMars ,  Edward C. Vail ,  Hanmin Zhao

发明人： Mehrdad Ziari ,  Scott D. DeMars ,  Edward C. Vail ,  Hanmin Zhao

IPC分类号： H01S522

CPC分类号： B82Y10/00 ,  G11B7/127 ,  H01S5/0207 ,  H01S5/1014 ,  H01S5/1064 ,  H01S5/164 ,  H01S5/2214 ,  H01S5/2215 ,  H01S5/227 ,  H01S5/3203 ,  H01S5/32341 ,  H01S2301/176 ,  H01S2301/185

摘要： A buried heterostructure (BH) laser source with a narrow active region is disclosed for use in close proximity with optically-addressed data storage media for read/write functionality in a relatively high data density format. The BH laser source is formed on a pregrooved or prepatterned substrate to form mesas upon which epitaxial layers are formed to form laser source active regions that have small emission apertures at the laser source facet output. Selective removal of semiconductor cladding material and replacement of this material with lower refractive index materials provides a way of obtaining further mode size-reduction at the output facet of the laser source. Each mesa has a top surface and adjacent sidewalls such that in the growth of the epitaxial layers above the active region doped with a first conductivity type, the above active region epitaxial layers depositing on the top surface deposit as a first conductivity type and depositing on said sidewalls deposit as a second conductivity type. This growth construction provides for a naturally formed p-n junction at the laser source active region and eliminates the need to perform a subsequent diffusion process to form such a junction. The optical cavities of the laser sources may be tapered so that die cleaving a predetermined point along the length of the optical cavity will provide the desired emission aperture size at the laser source output facet.

摘要翻译： 公开了一种具有窄有源区的掩埋异质结构（BH）激光源，用于与光学寻址数据存储介质紧密接近，以便以相对较高的数据密度格式进行读/写功能。 BH激光源形成在预浸渍或预制图案化的衬底上以形成台面，在其上形成外延层以形成在激光源面输出处具有小发射孔径的激光源有源区。 选择性去除半导体包层材料并用较低折射率材料替代该材料提供了在激光源的输出端获得进一步的模式尺寸减小的方式。 每个台面具有顶表面和相邻的侧壁，使得在掺杂有第一导电类型的有源区上方的外延层的生长中，沉积在顶表面上的上述有源区外延层作为第一导电类型沉积并沉积在所述 侧壁沉积为第二导电类型。 该生长结构提供了在激光源有源区域处的自然形成的p-n结，并且不需要进行随后的扩散过程以形成这种结。 激光源的光腔可以是锥形的，使得沿着光腔的长度切割预定点的管芯将在激光源输出端面处提供期望的发射孔径尺寸。

公开(公告)号：US09372306B1

公开(公告)日：2016-06-21

申请号：US11045827

申请日：2005-01-27

申请人： Radhakrishnan L. Nagarajan ,  Fred A. Kish, Jr. ,  Masaki Kato ,  Charles H. Joyner ,  David F. Welch ,  Randal A. Salvatore ,  Richard P. Schneider ,  Mehrdad Ziari ,  Damien Jean Henri Lambert ,  Sheila K. Hurtt ,  Andrew G. Dentai ,  Atul Mathur ,  Vincent G. Dominic

发明人： Radhakrishnan L. Nagarajan ,  Fred A. Kish, Jr. ,  Masaki Kato ,  Charles H. Joyner ,  David F. Welch ,  Randal A. Salvatore ,  Richard P. Schneider ,  Mehrdad Ziari ,  Damien Jean Henri Lambert ,  Sheila K. Hurtt ,  Andrew G. Dentai ,  Atul Mathur ,  Vincent G. Dominic

IPC分类号： G02B6/12

CPC分类号： G02B6/12009 ,  G02B6/00 ,  G02B6/02204 ,  G02B6/12004 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/12033 ,  G02B6/124 ,  G02B6/4215 ,  G02F1/0121 ,  G02F1/01725 ,  G02F1/025 ,  G02F2001/0175 ,  G02F2001/01758 ,  G02F2203/05 ,  H01S5/0085 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/02453 ,  H01S5/02461 ,  H01S5/02476 ,  H01S5/026 ,  H01S5/0261 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2214 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/2272 ,  H01S5/2275 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02

摘要： A method provides acceptable performance from a semiconductor transmitter photonic integrated circuit (TxPIC) that contains a plurality of modulated sources each comprising a laser source and an external modulator where each laser source provides a different emission wavelength and each modulated source forms a separate signal channel, comprising the steps of providing at least some of the signal channels with an extended identical active layer (EIAL) so that the modulated sources each have an identical active region wavelength and detuning the laser emission wavelength in each laser source within the EIAL from the laser active region wavelength.

摘要翻译： 一种方法从包含多个调制源的半导体发射器光子集成电路（TxPIC）提供可接受的性能，每个调制源包括激光源和外部调制器，其中每个激光源提供不同的发射波长，并且每个调制的源形成单独的信号通道， 包括以下步骤：向扩展的相同有源层（EIAL）提供信号通道的至少一些，使得调制源各自具有相同的有源区波长并使来自激光器活动的EIAL内的每个激光源中的激光发射波长失谐 区域波长。

公开(公告)号：US08644650B2

公开(公告)日：2014-02-04

申请号：US13341331

申请日：2011-12-30

申请人： Peter W. Evans ,  Scott Corzine ,  Mehrdad Ziari ,  Charles H. Joyner

发明人： Peter W. Evans ,  Scott Corzine ,  Mehrdad Ziari ,  Charles H. Joyner

IPC分类号： G02F1/035

CPC分类号： G02F1/0121 ,  G02F1/21 ,  G02F1/2255 ,  G02F2001/212

摘要： Consistent with the present disclosure, MZ drive signal electrodes may be provided relatively close to and parallel to one another, such that the underlying waveguide arms may also be provided close to and parallel to one another. As a result, common mode performance of an MZ modulator may be obtained. In one example, an electrode wiring configuration consistent with the present disclosure may permit a waveguide arm separation of 40 microns or less.

摘要翻译： 根据本公开，MZ驱动信号电极可以相对靠近并且彼此平行地设置，使得下面的波导臂也可以彼此靠近并且平行地设置。 结果，可以获得MZ调制器的共模性能。 在一个示例中，与本公开一致的电极布线配置可以允许波导臂分离为40微米或更小。

公开(公告)号：US08606120B2

公开(公告)日：2013-12-10

申请号：US12790778

申请日：2010-05-28

申请人： Mehrdad Ziari ,  Masaki Kato ,  Radhakrishnan L. Nagarajan

发明人： Mehrdad Ziari ,  Masaki Kato ,  Radhakrishnan L. Nagarajan

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。

公开(公告)号：US08213802B2

公开(公告)日：2012-07-03

申请号：US12345817

申请日：2008-12-30

申请人： Brent E. Little ,  Wei Chen ,  John V. Hryniewicz ,  Sai T. Chu ,  Jeff Rahn ,  Mehrdad Ziari ,  Timothy Butrie ,  Michael Reffle ,  Fred A. Kish, Jr. ,  Charles H. Joyner

发明人： Brent E. Little ,  Wei Chen ,  John V. Hryniewicz ,  Sai T. Chu ,  Jeff Rahn ,  Mehrdad Ziari ,  Timothy Butrie ,  Michael Reffle ,  Fred A. Kish, Jr. ,  Charles H. Joyner

IPC分类号： H04B10/06

CPC分类号： H04J14/02 ,  G02B6/12004 ,  G02B6/12007 ,  H04B10/677 ,  H04J14/0221 ,  H04J14/06

摘要： An optical receiver includes a first substrate including a demultiplexer and a first optical waveguide array. An input of the demultiplexer is configured to receive a wavelength division multiplexed optical input signal having a plurality of channels. Each of the plurality of channels corresponds to one of a plurality of wavelengths. Each of the plurality of outputs is configured to supply a corresponding one of the plurality of channels. The first optical waveguide array has a plurality of inputs. Each of the inputs of the first optical waveguide array is configured to receive a corresponding one of the plurality of channels. A second substrate is in signal communication with the first substrate and includes an optical detector array. The optical detector array has a plurality of inputs, each of which is configured to receive a corresponding one of the plurality of channels and generate an electrical signal in response thereto.

摘要翻译： 光接收机包括：第一基板，包括解复用器和第一光波导阵列。 解复用器的输入被配置为接收具有多个信道的波分复用光输入信号。 多个通道中的每一个对应于多个波长中的一个。 多个输出中的每一个被配置为提供多个通道中的相应一个。 第一光波导阵列具有多个输入。 第一光波导阵列的每个输入被配置为接收多个通道中的相应一个。 第二衬底与第一衬底信号通信并且包括光学检测器阵列。 光检测器阵列具有多个输入，每个输入被配置为接收多个通道中的相应一个通道，并响应于此产生电信号。