公开(公告)号：US07555219B2

公开(公告)日：2009-06-30

申请号：US10710463

申请日：2004-07-13

申请人： Charles Cox ,  Ed Ackerman

发明人： Charles Cox ,  Ed Ackerman

IPC分类号： H04B10/24

CPC分类号： H04B10/2575 ,  H04B1/48 ,  H04B10/25759 ,  H04B2210/006

摘要： A bi-directional signal interface includes a first waveguide that propagates a first traveling wave. The first waveguide has one end that is coupled to a RF input port that receives a RF transmission signal and another end that is coupled to a RF bi-directional port that receives a RF reception signal and that transmits the RF transmission signal. A second waveguide is positioned proximate to the first waveguide. The second waveguide has one end that is coupled to an output port that passes the received RF reception signal. A non-reciprocal coupler couples fields from the first waveguide to the second waveguide so that the RF reception signal from the bi-directional port couples from the first waveguide to the second waveguide in a substantially non-reciprocal manner and then passes through the output port, and the RF transmission signal from the RF input port passes through the first waveguide to the RF bi-directional port.

摘要翻译： 双向信号接口包括传播第一行波的第一波导。 第一波导具有耦合到RF输入端口的一端，其接收RF传输信号，而另一端耦合到RF双向端口，该RF双向端口接收RF接收信号并发射RF发射信号。 第二波导位于第一波导附近。 第二波导具有耦合到通过接收的RF接收信号的输出端口的一端。 不可逆的耦合器将来自第一波导的场耦合到第二波导，使得来自双向端口的RF接收信号以基本上不可逆的方式从第一波导耦合到第二波导，然后通过输出端口 并且来自RF输入端口的RF传输信号通过第一波导到RF双向端口。

公开(公告)号：US20090067771A1

公开(公告)日：2009-03-12

申请号：US12207488

申请日：2008-09-09

申请人： Jianxiao Chen ,  Charles Cox

发明人： Jianxiao Chen ,  Charles Cox

IPC分类号： G02F1/035 ,  H01L21/02

CPC分类号： G02F1/225 ,  G02F2001/212

摘要： A modulator includes an electro-optical substrate and a first and second waveguide formed of a doped semiconductor material positioned on a surface of an electro-optical substrate forming a slot therebetween. A doping level of the semiconductor material being chosen to make the first and second waveguide conductive. A dielectric material is positioned in the slot which increases confinement of both an optical field and an electrical field inside the slot. A refractive index of the semiconductor material and a refractive index of the dielectric material positioned in the slot being chosen to reduce the Vπ·L product of the modulator.

摘要翻译： 调制器包括电光基板和由位于电光基板的表面上的掺杂半导体材料形成的第一和第二波导，其在其间形成狭槽。 选择半导体材料的掺杂水平以使第一和第二波导导通。 电介质材料位于槽中，这增加了狭缝内的光场和电场的限制。 选择半导体材料的折射率和位于槽中的电介质材料的折射率以减小调制器的Vpi.L积。

公开(公告)号：US07490998B2

公开(公告)日：2009-02-17

申请号：US11484761

申请日：2006-07-12

申请人： Ahmad Atieh ,  John Mills

发明人： Ahmad Atieh ,  John Mills

IPC分类号： G02B6/38 ,  G02B6/36

CPC分类号： G02B6/3879 ,  G02B6/3825 ,  G02B6/3845 ,  G02B6/3893 ,  G02B6/4246 ,  G02B6/4292

摘要： An optical component package is disclosed. The package has a housing. The interior of the housing is adapted to house an optical component. The package includes at least two fiber optic connectors, each comprising an component side adapted to connect to the optical component and each having a pluggable exterior element. Each of the at least two fiber optic connectors are mounted in the housing with their component side accessible from the interior of the package and their pluggable exterior element accessible from the exterior.

摘要翻译： 公开了一种光学部件封装。 包装有一个外壳。 壳体的内部适于容纳光学部件。 该包装包括至少两个光纤连接器，每个光纤连接器包括适于连接到光学部件并且每个具有可插拔外部元件的部件侧。 所述至少两个光纤连接器中的每一个安装在所述壳体中，其组件侧可从所述封装的内部接近并且其可插拔外部元件可从外部接近。

公开(公告)号：US07457032B2

公开(公告)日：2008-11-25

申请号：US11231874

申请日：2005-09-22

申请人： Lijie Qiao ,  Paul J. Vella

发明人： Lijie Qiao ,  Paul J. Vella

IPC分类号： H04B10/08 ,  H04B10/17

CPC分类号： H04B10/07955 ,  H04B10/07953

摘要： An arrangement has a WDT (Wavelength-Dependent Tap) coupled in an OCS (Optical Communication System) and an OPM (Optical Performance Monitoring) function coupled to the WDT. The WDT is adapted to receive from the OCS an input optical signal having noise and channels at respective channel wavelengths. The WDT couples to an output some of the input optical signal at the channel wavelengths and most of a noise power at wavelengths between the channel wavelengths, and couples a remaining portion of the input optical signal back into the optical communication system. The optical performance monitoring function determines a power characteristic of the input optical signal as a function of a power from the output. The power characteristic may be an OSNR (Optical Signal-to-Noise Ratio) determined as a function of a signal power and a noise power of the output optical signal.

摘要翻译： 一种布置具有耦合到OCS（光通信系统）中的WDT（波长相关抽头）和耦合到WDT的OPM（光学性能监视）功能。 WDT适于从OCS接收具有各个信道波长的噪声和信道的输入光信号。 WDT在通道波长处的输出光信号中输出一些输入光信号，并且在通道波长之间波长处的噪声功率的大部分耦合，并将输入光信号的剩余部分耦合回光通信系统。 光学性能监视功能根据输出的功率确定输入光信号的功率特性。 功率特性可以是根据信号功率和输出光信号的噪声功率确定的OSNR（光信噪比）。

公开(公告)号：US07400787B2

公开(公告)日：2008-07-15

申请号：US11100641

申请日：2005-04-07

申请人： William K. Burns

发明人： William K. Burns

IPC分类号： G02F1/035

CPC分类号： G02F1/2255 ,  G02F1/0356 ,  G02F2001/212

摘要： A modulator includes an interferometer waveguide structure formed on an electro-optical substrate, preferably a Z-cut lithium niobate or a Z-cut lithium tantalate. The substrate includes a domain inversion between a region near the first arm and a region near the second arm of the interferometer waveguide structure. In one example, two coplanar strip electrode structures, each extending near at least a portion of the first arm and the second arm, respectively, are electrically coupled to each other.

摘要翻译： 调制器包括形成在电光学基底上的干涉仪波导结构，优选Z切割的铌酸锂或Z切割的钽酸锂。 衬底包括在第一臂附近的区域和干涉仪波导结构的第二臂附近的区域之间的畴反转。 在一个示例中，分别在第一臂和第二臂的至少一部分附近延伸的两个共面条状电极结构彼此电耦合。

公开(公告)号：US07324268B2

公开(公告)日：2008-01-29

申请号：US10800747

申请日：2004-03-16

申请人： Lijie Qiao ,  Paul J. Vella

发明人： Lijie Qiao ,  Paul J. Vella

IPC分类号： H01S4/00 ,  H04B10/12

CPC分类号： H04B10/294 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0677 ,  H01S3/1608 ,  H04B2210/003

摘要： An optical amplification apparatus is provided comprising a plurality of fiber amplification media segments which are concatenated in series wherein subsequent to each fiber amplification media segment one or more wavelengths is dropped so as to exploit a gain versus fiber amplification media physical length characteristic. By exploiting the gain versus fiber amplification media physical length characteristic in such a manner it is possible to achieve a substantially flat gain response for a multi-wavelength output of the optical amplification apparatus. Some embodiments of the invention combine noise suppression and additional gain flattening on one or more wavelengths. Embodiments of the optical amplification apparatus can be used in red-band wavelength range applications of coarse wavelength division multiplexing (CWDM). Some embodiments of the invention also provide that the optical amplification apparatus can be used as a hybrid dense wavelength division multiplexing (DWDM) and CWDM optical amplifier.

摘要翻译： 提供了一种光学放大装置，其包括串联连接的多个光纤放大介质段，其中随后的每个光纤放大介质区段落下一个或多个波长，以利用增益对光纤放大介质的物理长度特性。 通过以这种方式利用增益对光纤放大介质的物理长度特性，可以实现对于光放大装置的多波长输出的基本平坦的增益响应。 本发明的一些实施例将噪声抑制和附加增益平坦化结合在一个或多个波长上。 光放大装置的实施例可以用于粗波分复用（CWDM）的红带波长范围应用。 本发明的一些实施例还提供了光放大装置可以用作混合密集波分复用（DWDM）和CWDM光放大器。

公开(公告)号：US5267188A

公开(公告)日：1993-11-30

申请号：US871850

申请日：1992-04-21

申请人： Dennis R. Pape ,  James A. Carter, III

发明人： Dennis R. Pape ,  James A. Carter, III

IPC分类号： G01R23/17 ,  G06E3/00 ,  G06G7/19

CPC分类号： G01R23/17 ,  G06E3/005

摘要： A multi-channel acousto-optic spectrometer employs a multi-channel Bragg cell, Fourier transform imaging optics and two-dimensional charge coupled device photodetector array to simultaneously process a plurality of parallel channels of respectively adjacent frequency bands of a wideband radio frequency signal. The signal modulation and optical transmission characteristics of the spectrometer are such that the respective acousto-optic channels to which the respective sub-bands portions of the signal are applied do not interfere with one another and are imaged upon closely spaced regions of the two-dimensional photodetector array. The opto-electronic responses of the respective imaging regions of the array are transferred from an imaging area of the photodetector array, upon which a multi-channel acousto-optically modulated light beam is projected by the spectrometer's Fourier transform-imaging optics, to a non-imaging area of the photodetector array, so as to permit a new spectrometer input signal to be imaged onto the two-dimensional photodetector array. The contents of each frequency channel of a respective sub-band are then transferred in parallel to an output accumulator register, which is read out serially and digitized for application to downstream signal processing and display circuitry.

摘要翻译： 多通道声光谱仪采用多通道布拉格单元，傅里叶变换成像光学器件和二维电荷耦合器件光电检测器阵列，以同时处理宽带射频信号的相邻相邻频带的多个并行通道。 光谱仪的信号调制和光传输特性使得施加信号的相应子带部分的相应声光通道彼此不干涉，并且在二维的紧密间隔的区域上成像 光电探测器阵列 阵列的各个成像区域的光电子响应从光电检测器阵列的成像区域传送，多光声光调制光束由光谱仪的傅立叶变换成像光学器件投影到非成像区域， 光电检测器阵列的成像区域，以便允许将新的光谱仪输入信号成像到二维光电检测器阵列上。 然后将各个子带的每个频道的内容并行地传送到输出累加器寄存器，该输出累加器寄存器被串行读出并数字化以供下行信号处理和显示电路。

公开(公告)号：US11994547B2

公开(公告)日：2024-05-28

申请号：US17766248

申请日：2020-10-13

申请人： Photonic Systems, Inc.

发明人： Charles H. Cox ,  Thomas Warner

IPC分类号： H03M1/00 ,  G01R29/02 ,  H03M3/00

CPC分类号： G01R29/02 ,  H03M3/344 ,  H03M3/402

摘要： A method for extended-pulse sampling includes providing a continuous-time signal comprising a frequency spectrum within a predetermined passband. The continuous time signal is sampled with a plurality of discrete sample pulses having a pulse shape in a time domain that is an impulse response of a filter having the predetermined passband. The plurality of discrete time samples of the continuous-time signal is then provided to an output.

公开(公告)号：US20220382083A1

公开(公告)日：2022-12-01

申请号：US17827913

申请日：2022-05-30

申请人： Photonic Systems, Inc.

发明人： Edward Wooten

IPC分类号： G02F1/035 ,  G02F1/03

摘要： A method and apparatus for efficiently modulating light includes forming a lithium niobate waveguide with a slab region and a ridge region to confine an optical mode traversing the optical modulator under the ridge region. An electro-optic polymer is formed on a top surface of the lithium niobate waveguide with the slab region and the ridge region having dimension sufficient to support an evanescent tail of the optical mode traversing the optical modulator under the ridge region during modulation. Light is applied to an input of the lithium niobate waveguide. A drive voltage is applied to the electro-optic polymer that modulates the light with the evanescent tail so that the mode expands into the electro-optic polymer material a length that provides a desired switching voltage-length product (Vπ*L).

公开(公告)号：US11431413B2

公开(公告)日：2022-08-30

申请号：US17187860

申请日：2021-02-28

申请人： Photonic Systems, Inc.

发明人： Edward I. Ackerman

IPC分类号： H04B10/2507 ,  H04B10/2575 ,  H04B10/2543 ,  H04B10/50

摘要： A method of interference suppression with intermodulation distortion mitigation includes processing an RF signal comprising an RF signal of interest and an RF interfering signal to produce a first and second RF drive signal each with a desired RF interference signal power and having a 90 degree relative phase. The first RF drive signal is imposed onto a first optical signal with a modulator to generate a first modulated optical signal so that the modulator has a large-signal behavior that is characterized by a Bessel function of the first kind J1(ϕ), wherein the desired power at a frequency of the interference signal of the first drive signal is chosen to correspond to a zero of the Bessel function of the first kind J1(ϕ). The second RF drive signal is imposed onto a second optical signal with a modulator to generate a second modulated optical signal so that the modulator has a large-signal behavior that is characterized by a Bessel function of the first kind J1(ϕ), wherein the desired power at a frequency of the interference signal of the second drive signal is chosen to correspond to another zero of the Bessel function of the first kind J1(ϕ). The first and second modulated optical signal are combined with an optical power ratio that is selected to suppress third-order intermodulation distortion products in an electrical signal generated by detecting the optically combined first and second modulated optical signals.