公开(公告)号：US07272324B2

公开(公告)日：2007-09-18

申请号：US10007531

申请日：2001-10-26

申请人： Ken A. Nishimura ,  Brian E. Lemoff ,  Charles Hoke

发明人： Ken A. Nishimura ,  Brian E. Lemoff ,  Charles Hoke

IPC分类号： H04B10/00

CPC分类号： H04B10/2507

摘要： Methods for performing time-domain equalization of an information signal represented by an optical signal are provided. A representative method includes: receiving the optical signal; optically splitting the optical signal into beams; optically delaying at least one of the beams; detecting a plurality of the beams to generate respective electrical signal components; and combining a plurality of the electrical signal components to generate an electrical output signal representing the information signal. Systems and other methods also are provided.

摘要翻译： 提供了用于执行由光信号表示的信息信号的时域均衡的方法。 一种代表性的方法包括：接收光信号; 将光信号光学分解成光束; 光学地延迟至少一个光束; 检测多个波束以产生相应的电信号分量; 以及组合多个所述电信号分量以产生表示所述信息信号的电输出信号。 还提供了系统和其它方法。

公开(公告)号：US06858829B2

公开(公告)日：2005-02-22

申请号：US09885906

申请日：2001-06-20

申请人： Ken A. Nishimura ,  Brian E. Lemoff ,  James N. Hollenhorst

发明人： Ken A. Nishimura ,  Brian E. Lemoff ,  James N. Hollenhorst

IPC分类号： H01L27/146 ,  H01L31/02 ,  H01L31/107 ,  H01J40/14

CPC分类号： H01L31/107 ,  H01L27/14643 ,  H01L31/02027

摘要： A photodiode array includes a plurality of arrayed individual diode devices. The arrayed diode devices include at least one active photodiode and at least one reference diode. A bias control circuit for the array monitors operation of the reference diode at an applied first bias voltage and adjusts that applied first bias voltage until optimal reference diode operation is reached. A second bias voltage having predetermined relationship to the first bias voltage is applied to the active photodiode to optimally configure array operation. More specifically, an operational characteristic of the reference diode at the first bias voltage is monitored and compared to a reference value. As a result of this comparison, the circuit adjusts the applied first and second bias voltage in order to drive the reference diode measured characteristic to substantially match the reference value. The operational characteristic that is measured may comprise reference diode responsivity or reference diode output current, and may be based on either electrical or optical device operation. Each avalanche photodiode semiconductor structure may have a conventional reverse biased pn junction semiconductor structure providing a high field region as is well known in the art. An enhanced semiconductor structure may also be utilized wherein a heavily doped layer that is physically separate from the pn junction is also included to provide a source of charge carriers that are swept into the high field region.

摘要翻译： 光电二极管阵列包括多个排列的独立二极管器件。 阵列二极管器件包括至少一个有源光电二极管和至少一个参考二极管。 用于阵列的偏置控制电路监视所施加的第一偏置电压下的参考二极管的操作，并调整所施加的第一偏置电压，直到达到最佳参考二极管操作。 将具有与第一偏置电压具有预定关系的第二偏置电压施加到有源光电二极管以最佳地配置阵列操作。 更具体地，监视第一偏置电压下的参考二极管的工作特性并将其与参考值进行比较。 作为该比较的结果，电路调整所施加的第一和第二偏置电压，以驱动参考二极管测量的特性，使其基本上与参考值相匹配。 测量的操作特性可以包括参考二极管响应度或参考二极管输出电流，并且可以基于电或光器件操作。 每个雪崩光电二极管半导体结构可以具有常规的反向偏置pn结半导体结构，其提供本领域公知的高场区域。 还可以使用增强的半导体结构，其中与pn结物理分离的重掺杂层也被包括在内，以提供扫描到高场区域中的电荷载流子源。

公开(公告)号：US07020397B2

公开(公告)日：2006-03-28

申请号：US10035528

申请日：2001-10-23

申请人： Brian E. Lemoff ,  Ken A. Nishimura

发明人： Brian E. Lemoff ,  Ken A. Nishimura

IPC分类号： H04B10/00

CPC分类号： H04B10/299 ,  H04L7/0075

摘要： An optical retimer is provided that retimes an optical data signal entirely in the optical domain, thus eliminating the need for optical-to-electrical and electrical-to-optical converters, which are needed to perform retiming in the electrical domain. Eliminating these conversion steps also eliminates, or at least decreases, the potential for errors in the retimed optical signal, such as jitter. The optical retimer samples the optical data signal during a clock cycle that has been determined by clock recovery, allows the sampled signal to traverse an optical pathway for the remainder of the cycle, out-couples a fraction of the sampled optical signal each time the signal traverses the optical pathway, and amplifies the signal traversing the pathway to maintain the signal at the power level it had when it was sampled. By the end of the clock cycle, the out-coupled signal corresponds to a retimed version of the original signal, synchronized to the recovered clock signal.

公开(公告)号：US06931195B2

公开(公告)日：2005-08-16

申请号：US10635719

申请日：2003-08-05

申请人： Brian E. Lemoff

发明人： Brian E. Lemoff

IPC分类号： G02B6/04 ,  G02B6/42 ,  G02B6/44 ,  G02B6/00

CPC分类号： G02B6/4471 ,  G02B6/4249

摘要： A fiber ribbon includes a plurality of first segments of optical fibers that extend in a planar side-by-side arrangement having a first predetermined pitch. A fiber-fan-out including a plurality of second segments of the optical fibers extends in a diverging arrangement from the fiber ribbon. A fiber holder extends across the plurality of second segments of the optical fibers for maintaining a plurality of terminal portions of the second segments in a second predetermined pitch that is greater than the first predetermined pitch so that the terminal portions can each be optically coupled to a corresponding optical subassembly (OSA) of a plurality of OSAs arranged in a linear array. An alternate embodiment uses a second fiber holder in place of the fiber ribbon. The holders can be replaced with a common housing assembly spanning all but the terminal portions of the optical fibers.

摘要翻译： 光纤带包括多个第一光纤段，它们以具有第一预定间距的平面并排布置延伸。 包括光纤的多个第二段的光纤扇出部分从光纤带以分散布置延伸。 光纤保持器延伸穿过光纤的多个第二段，用于将第二段的多个端子部分保持在大于第一预定间距的第二预定间距中，使得端子部分可以各自光耦合到 以线性阵列排列的多个OSA的对应的光学子组件（OSA）。 替代实施例使用第二光纤保持器代替光纤带。 保持器可以用跨越除了光纤的端子部分之外的所有的公共壳体组件来替换。

公开(公告)号：US06785439B2

公开(公告)日：2004-08-31

申请号：US10060512

申请日：2002-01-29

申请人： Charles D. Hoke ,  Brian E. Lemoff

发明人： Charles D. Hoke ,  Brian E. Lemoff

IPC分类号： G02B6026

CPC分类号： G02B6/3596 ,  G02B6/3556 ,  G02F1/293

摘要： A three-dimensional optical switch using three-dimensional rewritable waveguides in a photosensitive substrate. At least two light beams are used to illuminate the substrate in the region where the waveguide is to be written. The refractive index of the substrate changes at the points where the beams intersect. Therefore, the light beams can be directed to create a three-dimensional waveguide in the photosensitive substrate. A plurality of inlet ports in one surface of the substrate are thereby connected to a plurality of outlet ports on another surface of the substrate. Alternatively, the inlet ports and the outlet ports may be on the same surface of the substrate. The invention also provides methods of creating waveguides in photosensitive media using the device described herein.

摘要翻译： 在感光基片中使用三维可重写波导的三维光学开关。 使用至少两束光束来照射波导要被写入的区域中的衬底。 基板的折射率在光束相交的点处变化。 因此，可以引导光束以在感光基板中产生三维波导。 因此，衬底的一个表面中的多个入口端口连接到衬底的另一表面上的多个出口。 或者，入口端口和出口可以在基板的相同表面上。 本发明还提供了使用本文所述的装置在光敏介质中产生波导的方法。

公开(公告)号：US07123836B2

公开(公告)日：2006-10-17

申请号：US09906991

申请日：2001-07-16

申请人： Brian E. Lemoff ,  Julie E. Fouquet ,  Ian Hardcastle

发明人： Brian E. Lemoff ,  Julie E. Fouquet ,  Ian Hardcastle

IPC分类号： H04B10/20 ,  H04J14/00 ,  H04J14/08 ,  G02B6/26

CPC分类号： H04B10/278

摘要： The optical fiber-based communication system comprises a distribution optical fiber that extends proximately to a plurality of end users, and tap-off modules coupled to the distribution optical fiber at intervals along its length. Each of the tap-off modules includes a port in optical communication with the distribution optical fiber. The optical fiber-based communication system additionally comprises a branch optical fiber connected to the port of each of at least some of the tap-off modules and that extends to a corresponding one of the end users.

公开(公告)号：US07076129B2

公开(公告)日：2006-07-11

申请号：US10428199

申请日：2003-04-30

申请人： Brian E. Lemoff

发明人： Brian E. Lemoff

IPC分类号： G02B6/28

CPC分类号： G02B27/123 ,  G02B6/2848 ,  G02B6/32 ,  G02B6/4206 ,  G02B6/425 ,  G02B27/1086 ,  H01S5/4012

摘要： A method and apparatus for a filterless parallel WDM multiplexer is disclosed. The filterless multiplexer comprises two or more planes of lenses to allow light to be directed into a number of waveguides. The filterless multiplexer may be have either refractive or diffractive lenses.

摘要翻译： 公开了一种无滤波并行WDM多路复用器的方法和装置。 无滤波多路复用器包括两个或更多个透镜平面，以允许光被引导到多个波导中。 无滤光多路复用器可以具有折射或衍射透镜。

公开(公告)号：US06259121B1

公开(公告)日：2001-07-10

申请号：US09397621

申请日：1999-09-16

申请人： Brian E. Lemoff ,  Dubravko Babic ,  Richard P. Schneider

发明人： Brian E. Lemoff ,  Dubravko Babic ,  Richard P. Schneider

IPC分类号： H01L3300

CPC分类号： H01S5/423 ,  H01S5/18358 ,  H01S5/2081 ,  H01S5/209 ,  H01S5/4087

摘要： An array of n-wavelength vertical cavity surface emitting lasers (VCSELs) can be grown with precise and repeatable wavelength control. First, a foundation VCSEL structure is grown on a substrate. Next, n-paired layers of AlGaAs and InGaP are grown, where n is the desired number of different wavelengths. Next, one of the n regions is masked and etched. The steps of masking and etching are repeated until all n regions are etched. Finally, the upper VCSEL structure is grown.

摘要翻译： 可以用精确和可重复的波长控制来生长n波长垂直腔表面发射激光器阵列（VCSEL）。 首先，在衬底上生长基底VCSEL结构。 接下来，生长AlGaAs和InGaP的n对层，其中n是期望数量的不同波长。 接下来，掩模和蚀刻n个区域中的一个。 重复掩模和蚀刻的步骤直到蚀刻所有n个区域。 最后，生成上层VCSEL结构。

公开(公告)号：US07050719B2

公开(公告)日：2006-05-23

申请号：US10223780

申请日：2002-08-19

申请人： Brian E. Lemoff ,  Frank H. Peters

发明人： Brian E. Lemoff ,  Frank H. Peters

IPC分类号： H04J14/02

CPC分类号： H04J14/02

摘要： The WDM receiver includes a wavelength demultiplexer, a detector array and a signal extractor. The wavelength demultiplexer receives an n-channel optical input signal and transmits the n-channel optical input signal to m optical outputs. Each of the optical outputs receives a wavelength band centered at a different wavelength. The wavelength bands have a center-to-center wavelength spacing of Δλ′. The detector array is composed of m detector elements coupled to the wavelength demultiplexer. Each of the detector elements generates a detection signal in response to light received from one of the optical outputs of the wavelength demultiplexer. The signal extractor receives the detection signals from the detector array and converts the detection signals to an n-channel receiver output signal, each channel of which corresponds to a different one of the n channels of the optical input signal. The WDM receiver is able to detect optical signals that are closely spaced in wavelength, even when the optical signals have off-center of varying wavelengths.

摘要翻译： WDM接收机包括波长解复用器，检测器阵列和信号提取器。 波长解复用器接收n沟道光输入信号，并将n沟道光输入信号发送到m个光输出。 每个光学输出接收以不同波长为中心的波长带。 波长带具有Deltalambda的中心到中心的波长间隔。 检测器阵列由耦合到波长解复用器的m个检测器元件组成。 每个检测器元件响应于从波长解复用器的光输出之一接收的光产生检测信号。 信号提取器从检测器阵列接收检测信号，并将检测信号转换成n沟道接收器输出信号，每个通道对应于光输入信号的n个通道中的不同通道。 即使当光信号具有不同波长的偏心时，WDM接收机能够检测到波长紧密间隔的光信号。

公开(公告)号：US06961486B2

公开(公告)日：2005-11-01

申请号：US09873127

申请日：2001-06-01

申请人： Brian E. Lemoff ,  Charles D. Hoke ,  Dale W. Schroeder

发明人： Brian E. Lemoff ,  Charles D. Hoke ,  Dale W. Schroeder

IPC分类号： G02B26/08 ,  G02B6/35 ,  G02B6/38 ,  G02B6/36

CPC分类号： G02B6/3508 ,  G02B6/3542 ,  G02B6/3556 ,  G02B6/3572 ,  G02B6/3578 ,  G02B6/3873 ,  G02B6/3874

摘要： A first plurality of stages each support a ferrule surrounding an end portion of a corresponding one of N optical input fibers. A second plurality of stages each support a ferrule surrounding an end portion of a corresponding one of M optical output fibers. Mechanical mechanisms translate the stages along a plurality of orthogonal X and Y axes to align a facet of a selected one of the N input optical fibers with a facet of a selected one of the M output optical fibers. The stages of the input optical fibers, the output optical fibers, or both, have mechanical mechanisms for moving the ferrules along Z axes perpendicular to the X and Y axes into and out of alignment holes of a central panel to physically mate the facets of the coupled fibers.

摘要翻译： 第一多个阶段各自支撑环绕N个光学输入光纤中的相应一个的端部的套圈。 第二多个阶段各自支撑环绕M个光输出光纤中的相应一个的端部的套圈。 机械机构沿着多个正交X轴和Y轴平移台阶，以将N个输入光纤中所选择的一个的一个面与M个输出光纤中所选择的一个的小平面对准。 输入光纤，输出光纤或两者的阶段具有机械机构，用于沿着垂直于X轴和Y轴的Z轴移动套圈进入和离开中心板的对准孔，以物理地匹配 耦合纤维。