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    Optical subassembly for bidirectional WDM application
    1.
    发明授权
    Optical subassembly for bidirectional WDM application 有权

    公开(公告)号：US11835767B2

    公开(公告)日：2023-12-05

    申请号：US17747972

    申请日：2022-05-18

    Applicant: Tongqing Wang ,  Ming Ding

    Inventor： Tongqing Wang ,  Ming Ding

    IPC: G02B6/293 ,  F21V8/00

    CPC classification number: G02B6/29394 ,  G02B6/0026 ,  G02B6/29322

    Abstract: Embodiment of present invention provide an optical subassembly that includes a first, a second, and a third band filter (BF) each having a common port (CP), a port-A (PA), and a port-B (PB). The PA of the second BF is connected to the PA of the third BF and the PB of the first BF is connected to the PB of the third BF. The optical subassembly is adapted to route a first optical signal of a blue band from the PA to the CP of the first BF; to route the first optical signal from the CP of the second BF to the CP of the third BF; to route a second optical signal of a red band from the CP of the third BF to the CP of the first BF; and to route the second optical signal from the CP to the PB of the second BF.

    TURNABLE FREE SPACE OPTICAL FILTERS
    2.
    发明公开
    TURNABLE FREE SPACE OPTICAL FILTERS 审中-公开

    公开(公告)号：US20230324617A1

    公开(公告)日：2023-10-12

    申请号：US17717537

    申请日：2022-04-11

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Mark Earnshaw

    IPC: G02B6/293

    CPC classification number: G02B6/29395 ,  G02B6/29322 ,  G02B6/29398 ,  H04B10/2941

    Abstract: An optical apparatus, comprising a semiconductor substrate, a dielectric layer located on the semiconductor substrate, wherein a membrane portion of the dielectric layer is located over a cavity in a surface of the semiconductor substrate, a resistive heater located on the membrane portion, the resistive heater being controllable by a current applied to the resistive heater and an etalon optical filter located on the resistive heater and over the cavity, an optical passband of the etalon optical filter being wavelength tunable by the resistive heater. A method of manufacturing the optical apparatus is also disclosed.

    Dynamic Terahertz Switching Device Comprising Sub-wavelength Corrugated Waveguides and Cavity that Utilizes Resonance and Absorption for Attaining On and Off states
    4.
    发明申请
    Dynamic Terahertz Switching Device Comprising Sub-wavelength Corrugated Waveguides and Cavity that Utilizes Resonance and Absorption for Attaining On and Off states 有权
    动态太赫兹切换装置包括利用共振和吸收的亚波长波纹波导和腔，以获得开和关状态

    公开(公告)号：US20130301983A1

    公开(公告)日：2013-11-14

    申请号：US13466702

    申请日：2012-05-08

    Applicant: Pinaki Mazumder ,  Kyungjun Song

    Inventor： Pinaki Mazumder ,  Kyungjun Song

    IPC: G02B6/35

    CPC classification number: G02B6/35 ,  B82Y20/00 ,  G02B6/1226 ,  G02B6/29322 ,  G02F1/3515 ,  G02F2203/10 ,  G02F2203/13 ,  G02F2203/15 ,  Y10T29/49016

    Abstract: A terahertz (THz) switch consisting of perfect conductor metamaterials is discussed in this invention. Specifically, we have built a THz logic block by combining two double-sided corrugated waveguides capable of slowing down the electromagnetic waves in the THz regime with a sub-wavelength cavity, having one or more grooves with shorter height than the grooves of the periodic corrugated waveguide. This new type of THz structure is called as the waveguide-cavity-waveguide (WCW). The new invention is based on our mathematical modeling and experimentation that confirms a strong electromagnetic field accumulation inside the tiny cavity which can confine EM field for a long time within a very small effective volume (Veff) to provide high quality (Q) factor. Therefore, an efficient THz switch can be designed to achieve ON-OFF switching functionality by modulating the refractive index n or extinction coefficient α inside the switching junction. The dimensions of the periodic structure and cavity can be optimized to apply the invention to slow-EM wave devices working at other frequencies in the EM spectrum including the microwave and outside the THz domain which is generally accepted as from 0.3 THz to 3 THz.

    Abstract translation: 在本发明中讨论了由完美导体超材料组成的太赫兹（THz）开关。 具体来说，我们已经构建了一个THz逻辑块，通过组合两个双面波纹波导，能够使用亚波长腔减慢THz区域的电磁波，具有一个或多个比周期性波纹状槽的槽高的槽 波导。 这种新型的THz结构被称为波导腔波导（WCW）。 新发明是基于我们的数学建模和实验，确认了微小空腔内强大的电磁场积聚，可以在非常小的有效体积（Veff）内将EM场长时间限制在一起，从而提供高质量（Q）因子。 因此，可以设计有效的THz开关，以通过调制开关结中的折射率n或消光系数α来实现ON-OFF开关功能。 可以优化周期性结构和空腔的尺寸，以将本发明应用于在包括微波和在THz域外的EM频谱中的其他频率工作的慢EM波装置，其通常被接受为0.3THz至3THz。

    Tunable dispersion compensator with minimum differential group delay
    5.
    发明授权
    Tunable dispersion compensator with minimum differential group delay 有权
    具有最小差分群延迟的可调谐色散补偿器

    公开(公告)号：US07831114B2

    公开(公告)日：2010-11-09

    申请号：US12351843

    申请日：2009-01-11

    Applicant: Gregory M. Bubel ,  William R. Holland ,  David J. Kudelko ,  Yaowen Li ,  Paul S. Westbrook

    Inventor： Gregory M. Bubel ,  William R. Holland ,  David J. Kudelko ,  Yaowen Li ,  Paul S. Westbrook

    IPC: G02B6/00 ,  G02B6/34

    CPC classification number: H04B10/2572 ,  G02B6/02109 ,  G02B6/02195 ,  G02B6/274 ,  G02B6/2932 ,  G02B6/29322 ,  G02B6/29394 ,  H04B10/2519

    Abstract: In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.

    Abstract translation: 在用于在光学系统中提供色​​散补偿的方法和系统中，耦合到光学系统中的至少一个通路，其中连接有可调谐线性调频光纤布拉格光栅，每个这样的光栅提供相应的可调量的色散。 对于每个这样的光栅，至少一个相应的DGD元件连接到相应的通路中。 在给定路径中的所有这些相应的DGD元件的集合引入了具有绝对值的偏差差分群延迟DGD（偏置），对于光栅的至少一个调谐值，其基本上等于由光栅引入的差分群延迟。

    System and method for performing dispersion compensation
    6.
    发明授权
    System and method for performing dispersion compensation 失效
    进行色散补偿的系统和方法

    公开(公告)号：US07295738B2

    公开(公告)日：2007-11-13

    申请号：US11008995

    申请日：2004-12-13

    Applicant: James P. Waters

    Inventor： James P. Waters

    IPC: G02B6/28 ,  G02B6/26 ,  H04J14/02

    CPC classification number: G02B6/2932 ,  G02B6/29322 ,  G02B6/29394 ,  G02B6/29395 ,  H04B10/2519

    Abstract: An exemplary embodiment of the present invention includes an optical circulator. The circulator may have, for example, a first port, a second port, and a third port. The first port may be configured to introduce light into the optical circulator. The system may also include a tunable fiber filter Bragg grating connected to the second port of the circulator and a tunable dispersion-compensating fiber Bragg grating connected to the third port of the optical circulator. The tunable dispersion compensating fiber Bragg grating and the tunable fiber filter Bragg grating may be configured to be tuned by a single actuator. This tuning may be either compression or strain tuning.

    Abstract translation: 本发明的示例性实施例包括光循环器。 循环器可以具有例如第一端口，第二端口和第三端口。 第一端口可以被配置为将光引入到光循环器中。 该系统还可以包括连接到环行器的第二端口的可调谐光纤滤波器布拉格光栅和连接到光循环器的第三端口的可调色散补偿光纤布拉格光栅。 可调谐色散补偿光纤布拉格光栅和可调谐光纤滤波器布拉格光栅可以被配置为由单个致动器调谐。 该调谐可以是压缩或应变调谐。

    Optical processor
    7.
    发明申请
    Optical processor 有权
    光学处理器

    公开(公告)号：US20060139712A1

    公开(公告)日：2006-06-29

    申请号：US11361407

    申请日：2006-02-23

    Applicant: Thomas Mossberg

    Inventor： Thomas Mossberg

    IPC: G02B5/32

    CPC classification number: G02B5/203 ,  G02B5/32 ,  G02B6/12007 ,  G02B6/124 ,  G02B6/29322 ,  G02B6/29326 ,  G02B6/29328 ,  G02B6/29395 ,  G02B2006/12164 ,  G03H1/0005 ,  G03H1/0248 ,  G03H2225/23 ,  H04J14/02 ,  H04J14/0201

    Abstract: Method and apparatus are disclosed for optical packet decoding, waveform generation, and wavelength multiplexing/demultiplexing using a programmed holographic structure. A configurable programmed holographic structure is disclosed. A configurable programmed holographic structure may be dynamically re-configured through the application of control mechanisms which alter operative holographic structures.

    Abstract translation: 公开了使用程序化全息结构的光分组解码，波形生成和波长复用/解复用的方法和装置。 公开了一种可配置的编程全息结构。 可以通过施加改变操作全息结构的控制机构来动态地重新配置可配置的编程全息结构。

    Dynamic power optical splitter
    8.
    发明授权
    Dynamic power optical splitter 有权
    动态功率光分路器

    公开(公告)号：US07068939B2

    公开(公告)日：2006-06-27

    申请号：US10162835

    申请日：2002-06-04

    Applicant: Ximin Zhao

    Inventor： Ximin Zhao

    IPC: H04J14/02

    CPC classification number: G02B6/02204 ,  G02B6/02057 ,  G02B6/29322

    Abstract: An optical splitter (1) includes a circulator (10) and a dynamic FBG (Fiber Bragg Grating) (20) which can achieve different reflection ratios corresponding to the size of a current in the dynamic FBG. The circulator has three ports. One port (P0) connects with an input optical fiber, one port (P3) connects with the dynamic FBG, and the third port (P2) connects with an output optical fiber. Light input from the circulator to the dynamic FBG and is dynamically split into two beams. One beam is output from an output port (P1) of the dynamic FBG, the other beam is reflected by the dynamic FBG and is output from the output port (P2) of the circulator.

    Abstract translation: 光分路器（1）包括循环器（10）和动态FBG（光纤布拉格光栅）（20），其能够实现与动态FBG中的电流大小相对应的不同反射比。 循环器有三个端口。 一个端口（P 0 ）与输入光纤连接，一个端口（P 3 SUB 3）与动态FBG连接，第三个端口（P < / SUB>）与输出光纤连接。 光从循环器输入到动态FBG，并被动态分为两个光束。 一个光束从动态FBG的输出端口（P <1> 1）输出，另一个光束被动态FBG反射并从输出端口输出（P < ）循环器。

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