公开(公告)号：US07715081B1

公开(公告)日：2010-05-11

申请号：US11903718

申请日：2007-09-24

Applicant: John A. Krawczak

Inventor： John A. Krawczak

IPC: G02F1/03 ,  G02F1/035

CPC classification number: G02F1/0311 ,  G02F1/0316 ,  G02F2201/17 ,  G02F2202/20 ,  G02F2203/15 ,  G02F2203/50

Abstract: A number of electro-optic modulation systems, apparatuses, and methods are disclosed. For example, one radio frequency photonic link with differential drive to an optical resonator electro-optic modulator includes an optically resonant body having a surface for receiving an optical carrier beam, a first electrode for receiving a first electrical signal to the resonator body, and a second electrode for receiving a second electrical signal to the resonator body that is different than the first electrical signal.

Abstract translation: 公开了一些电光调制系统，装置和方法。 例如，具有对光学谐振器电光调制器的差分驱动的一个射频光子链路包括具有用于接收光载波束的表面的光学谐振体，用于接收到谐振器本体的第一电信号的第一电极和 用于接收不同于第一电信号的谐振器主体的第二电信号的第二电极。

公开(公告)号：US07184622B2

公开(公告)日：2007-02-27

申请号：US11080703

申请日：2005-03-15

Applicant: Brian L. Uhlhorn ,  Rick C. Stevens ,  Gregory J. Whaley ,  John A. Krawczak

Inventor： Brian L. Uhlhorn ,  Rick C. Stevens ,  Gregory J. Whaley ,  John A. Krawczak

IPC: G02B6/24

CPC classification number: G02B6/4246 ,  G02B6/29326 ,  G02B6/29328 ,  G02B6/4206 ,  G02B6/4249 ,  G02B2006/12107 ,  G03H1/0005

Abstract: The present disclosure is directed to an optical apparatus suitable for coupling to an optical network. The optical apparatus is adapted to transmit multiplexed optical signals on the optical network and/or de-multiplex optical transmissions from the network. The optical apparatus includes an optical waveguide and an optoelectronic device. The optical waveguide has a set of diffractive elements in the form of a scribed volume hologram, which provides an optical transfer function. The optical waveguide also includes a first optical port and a second optical port. The second optical port is adapted to be optically coupled to the optical network. The optoelectronic device includes a plurality of optical portions. The optoelectronic device is adapted to convert optical signals at the optical portions into electric signals and/or convert electric signals into optical signals at the optical portions.

Abstract translation: 本公开涉及适于耦合到光网络的光学设备。 该光学装置适用于在光网络上发射复用的光信号和/或从网络解复用光传输。 光学装置包括光波导和光电器件。 光波导具有一组呈切面体积全息图形式的衍射元件，其提供光学传递函数。 光波导还包括第一光端口和第二光端口。 第二光端口适于光耦合到光网络。 光电子器件包括多个光学部分。 光电子器件适于将光学部分处的光信号转换为电信号和/或将光信号转换为光学部分的光信号。

公开(公告)号：US4838637A

公开(公告)日：1989-06-13

申请号：US45481

申请日：1987-05-04

Applicant: Ernest J. Torok ,  John A. Krawczak ,  Bernard S. Fritz ,  William A. Harvey

Inventor： Ernest J. Torok ,  John A. Krawczak ,  Bernard S. Fritz ,  William A. Harvey

IPC: G02B26/08 ,  G02B6/35 ,  G02F1/29 ,  H04Q3/52

CPC classification number: G02B6/3582 ,  G02B6/3512 ,  G02B6/3542 ,  G02B6/3546 ,  G02B6/358 ,  G02B6/3592

Abstract: A fiber-optic switchboard is developed consisting of a plurality of n input fibers, n input lenses, n light deflecting elements, n relay lenses, a multifaceted reflector, m output lenses, and m output fibers. Each input lens causes an image of the end of the corresponding input fiber to fall on its deflecting element, while each relay lens causes an image of the corresponding deflector element to fall on the proper facet of the multifaceted reflector. Each output lens causes an image of the multifaceted reflector to fall on the face of the corresponding output fiber. The output lenses are placed such that each deflecting element is capable of directing light through any output lens and into the corresponding output fiber.

Abstract translation: 开发了由多个n个输入光纤，n个输入透镜，n个光偏转元件，n个中继透镜，多面反射器，m个输出透镜和m个输出光纤组成的光纤交换机。 每个输入透镜使得相应输入光纤的端部的图像落在其偏转元件上，而每个中继透镜使相应的偏转元件的图像落在多面反射器的适当面上。 每个输出透镜使多面反射器的图像落在相应的输出光纤的表面上。 输出透镜被放置成使得每个偏转元件能够将光引导通过任何输出透镜并进入相应的输出光纤。

公开(公告)号：US4328468A

公开(公告)日：1982-05-04

申请号：US112509

申请日：1980-01-16

Applicant: John A. Krawczak ,  Ernest J. Torok

Inventor： John A. Krawczak ,  Ernest J. Torok

IPC: H01S3/082

CPC classification number: H01S3/082

Abstract: An apparatus for and a method of providing an amplified, directable laser light beam is disclosed. The apparatus includes two optical cavities sharing a common mirror. The first cavity is resonant and contains a laser rod intermediate a high reflectivity reflecting mirror of 100% reflectivity and a low reflectivity transmitting mirror of 10-90% reflectivity. The second cavity is antiresonant and contains a Faraday effect diffraction grating intermediate the low reflectivity mirror and a 100% reflectivity mirror. The laser light beam that passes through the transmitting mirror is directed normally incident to the surface of and passes through the Faraday effect diffraction grating. On the far side of the diffraction grating is a mirror of 100% reflectivity, which reflects the laser light beam back through the diffraction grating forming a pair of diffracted congruent 1'st order light beams and a single undiffracted 0'th order light beam. The 0'th order light beam is directed back through the transmitting mirror, through the laser rod to be reflected between its reflecting and transmitting mirrors and to again pass through the transmitting mirror onto the diffraction grating to provide 1'st order light beams of increased intensity.

Abstract translation: 公开了一种提供放大的可定向的激光束的装置和方法。 该装置包括共用共用反射镜的两个光学腔。 第一个腔是共振的，并且包含一个激光棒，中间有100％反射率的高反射率反射镜和10-90％反射率的低反射率透射镜。 第二个腔是反共振的，并且包含在低反射镜和100％反射镜之间的法拉第效应衍射光栅。 通过发射镜的激光束通常入射到法拉第效应衍射光栅的表面并通过法拉第效应衍射光栅。 在衍射光栅的远侧是反射率为100％的反射镜，其通过衍射光栅反射激光束，形成一对衍射一致的1级光束和单个未衍射的0级光束。 第0级光束通过发射镜反射通过激光棒反射到反射镜和透射镜之间并再次通过透射镜到衍射光栅上，以提供1级的增加的光束 强度。

公开(公告)号：US5557693A

公开(公告)日：1996-09-17

申请号：US327406

申请日：1994-10-21

Applicant: Rick C. Stevens ,  Gerald F. Sauter ,  John A. Krawczak

Inventor： Rick C. Stevens ,  Gerald F. Sauter ,  John A. Krawczak

IPC: G02B6/06 ,  G02B6/42 ,  H04B10/00 ,  G02B6/28

CPC classification number: H04B10/032 ,  G02B6/06 ,  G02B6/4249

Abstract: An apparatus and method for simultaneous transmission of a multiplicity of independent optical data signals without having to precisely align each source of the optical data signals with a single fiber-optic strand including an emitter array for emitting a multiplicity of optical data signals onto one end face of a coherent fiber-optic bundle having a plurality of fiber-optic strands bundled in a contiguous arrangement; and a photodiode array having optical data signals receiving area with the receiving area having a minimum dimension at least as large as a second end of the plurality of fiber-optic strands to enable the optical data signals to travel from the emitter to the photodiode receiving area over one or more of the plurality of fiber-optic strands.

Abstract translation: 一种用于同时传输多个独立光学数据信号的装置和方法，而不必将光学数据信号的每个源精确对准，其中包括用于在一个端面上发射多个光学数据信号的发射器阵列的单个光纤线 具有以连续布置捆扎的多个光纤线的相干光纤束; 以及具有光学数据信号接收区域的光电二极管阵列，其中所述接收区域具有至少与所述多个光纤线束的第二端一样大的最小尺寸，以使得所述光学数据信号能够从所述发射器行进到所述光电二极管接收区域 在多个光纤线中的一个或多个上。

公开(公告)号：US5425040A

公开(公告)日：1995-06-13

申请号：US233575

申请日：1994-04-26

Applicant: John A. Krawczak

Inventor： John A. Krawczak

IPC: H01S5/042 ,  H01S5/0683 ,  H01S3/133

CPC classification number: H01S5/042 ,  H01S5/0683

Abstract: The present invention utilizes the advantages of a switching regulator, such as, for example, the one shown in the National Semiconductor September 1992 publication, without the addition of additional complex control circuitry to provide a highly efficient controller for controlling the average optical output from a laser diode.

Abstract translation: 本发明利用开关调节器的优点，例如美国国家半导体公司1992年9月出版的示例中所示的优点，而不增加额外的复杂控制电路，以提供用于控制来自 激光二极管。

公开(公告)号：US4398798A

公开(公告)日：1983-08-16

申请号：US217878

申请日：1980-12-18

Applicant: John A. Krawczak ,  Ernest J. Torok

Inventor： John A. Krawczak ,  Ernest J. Torok

IPC: G02B26/08 ,  G02F1/09 ,  G02F1/29 ,  G06K9/74 ,  G02B5/18 ,  G02F1/22

CPC classification number: G02F1/09 ,  G02B26/0808 ,  G02F1/292 ,  G06K9/74

Abstract: Disclosed is an apparatus for and a method of establishing the domain walls within a stripe-domain supporting magnetizable film in a radially directed orientation, the separation of which is proportional to the distance from the center of the diffraction grating. The apparatus includes means for coupling to the stripe-domain supporting magnetizable film an orienting field that is directed orthogonal to the plane of the film but whose intensity from the center of the field source is inversely proportional to the distance from the center of the field source and further including means for coupling to said film an AC tickle field of significant to decreasing to zero amplitude for overcoming the hysteresis of the film.

Abstract translation: 公开了一种用于在径向定向的条状域支持的可磁化膜内建立畴壁的装置和方法，其分离与距衍射光栅中心的距离成比例。 该装置包括用于耦合到条状域支持可磁化膜的装置，定向场定向成垂直于膜的平面，但是其来自场源的中心的强度与从场源的中心的距离成反比 并且还包括用于耦合到所述膜的用于克服所述膜的滞后的有效降低到零幅度的AC挠曲场的装置。

公开(公告)号：US07499603B1

公开(公告)日：2009-03-03

申请号：US11335128

申请日：2006-01-19

Applicant: John A. Krawczak ,  Raymond J. Johnson

Inventor： John A. Krawczak ,  Raymond J. Johnson

IPC: G02F1/01 ,  G02F1/295 ,  G02B27/00

CPC classification number: G02F1/3136 ,  G02F1/0327

Abstract: Methods, systems, and devices are provided for an electrooptical modulator. One method embodiment includes receiving an optical input signal to an electrooptical modulator. A first voltage input is applied to a first drive electrode associated with a first optical path in the electrooptical modulator. A second voltage input is applied to a second drive electrode associated with a second optical path in the electrooptical modulator at times alternative to applying the first voltage input to the first drive electrode.

Abstract translation: 为电光调制器提供了方法，系统和设备。 一种方法实施例包括将光输入信号接收到电光调制器。 第一电压输入被施加到与电光调制器中的第一光路相关联的第一驱动电极。 第二电压输入被施加到与电光调制器中的第二光路相关联的第二驱动电极，其次是将第一电压输入施加到第一驱动电极。

公开(公告)号：US5391950A

公开(公告)日：1995-02-21

申请号：US80545

申请日：1993-06-24

Applicant: John A. Krawczak

Inventor： John A. Krawczak

IPC: H03K5/08 ,  H04L25/06 ,  H03K17/14 ,  H03K17/16

CPC classification number: H04L25/062 ,  H03K5/082

Abstract: A signal processing circuit that is subject to signal chatter is provided with signal chatter-elimination circuitry. Prior signal processing circuitry included a peak voltage detector which received a data input signal and provided a peak voltage representation of the input signal and a threshold-comparator that provided a threshold-comparison signal of a first output voltage magnitude when the peak voltage representation was below a predefined threshold voltage and of a second output voltage magnitude when the peak voltage representation was above the predefined threshold voltage. Improved signal chatter elimination is achieved by the further incorporation of a differential operational amplifier that has (a) a first input terminal that receives a data-representative signal which is subject to signal chatter, (b) a second input terminal that is coupled to receive a threshold-comparison signal of either a first fixed voltage level that blocks the output signal, or of a second variable voltage level that allows the output signal to be provided by the amplifier, and (c) a source of second variable voltage level which is temperature compensated, and the further incorporation of a threshold-level switch coupled to the threshold-comparator to receive the threshold comparison signal and to the amplifier, wherein the threshold-level switch is constructed to supply the first fixed voltage level to the second input terminal when the input signal is below the threshold voltage and the second voltage level to the second input terminal when the input signal is above the threshold voltage.

Abstract translation: 经受信号抖动的信号处理电路设置有信号抖动消除电路。 现有信号处理电路包括峰值电压检测器，其接收数据输入信号并提供输入信号的峰值电压表示;以及阈值比较器，其在峰值电压表示低于时提供第一输出电压幅度的阈值比较信号 当峰值电压表示高于预定阈值电压时，预定阈值电压和第二输出电压幅度。 通过进一步结合差分运算放大器来实现改进的信号抖动消除，差分运算放大器具有（a）第一输入端，其接收经受信号抖动的数据代表信号，（b）耦合以接收的第二输入端 阻塞输出信号的第一固定电压电平或允许放大器提供输出信号的第二可变电压电平的阈值比较信号，以及（c）第二可变电压电平源 温度补偿，以及进一步结合耦合到阈值比较器的阈值电平开关以接收阈值比较信号和放大器，其中阈值电平开关构造成将第一固定电压电平提供给第二输入端 当输入信号高于thres时，当输入信号低于阈值电压和第二输入端子的第二电压电平时 保持电压。

公开(公告)号：US4034359A

公开(公告)日：1977-07-05

申请号：US608437

申请日：1975-08-28

Applicant: Ernest J. Torok ,  Alan D. Kaske ,  John A. Krawczak ,  Maynard C. Paul

Inventor： Ernest J. Torok ,  Alan D. Kaske ,  John A. Krawczak ,  Maynard C. Paul

IPC: G11C11/14 ,  G11C19/08 ,  G11C11/44

CPC classification number: G11C19/0866

Abstract: A method of and an apparatus for reading out the information that is stored in the magnetizable layer of a cross-tie wall memory system is disclosed. The apparatus utilizes: a conductive pillar that is centered over and is conductively coupled to the Bloch-line position in the memory segment of the cross-tie wall in the magnetizable layer; a conductive ring that is oriented concentric to the pillar and that is conductively coupled to the magnetizable layer; and a readout device that is coupled across the pillar and ring for determining the resistance in the magnetizable layer between the pillar and ring as an indication of the existence or not of a Bloch-line in the memory segment.

Abstract translation: 公开了一种用于读出存储在交叉连接壁存储器系统的可磁化层中的信息的方法和装置。 该装置使用：导电柱，其位于可磁化层中的交叉连接壁的存储器区段中心并且与导体耦合到布洛赫线位置; 导电环，其与所述柱同心取向，并且导电耦合到所述可磁化层; 以及耦合在所述支柱和环之间以用于确定所述支柱和所述环之间的可磁化层中的电阻的读出装置，作为所述存储器段中Bloch线的存在或否的指示。