会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • Optical multiplexer/demultiplexer
    • 光复用器/解复用器
    • US20050276538A1
    • 2005-12-15
    • US11140573
    • 2005-05-31
    • Michiko TakushimaTomomi Sano
    • Michiko TakushimaTomomi Sano
    • G02B6/26G02B6/293G02B6/34
    • G02B6/29311G02B6/29313G02B6/29395
    • The present invention relates a variable optical multiplexer/demultiplexer which can be made smaller and can restrain characteristics from deteriorating. The optical multiplexer/demultiplexer comprises a first optical system, a wavelength branching device, a second optical system, and an optical path changing part. The optical multiplexer/demultiplexer has a plurality of input/output ports, and the first optical system, the wavelength branching device, and the second optical system are disposed between the ports and the optical path changing part. When light is fed into any of the ports, individual wavelength components included in the light are outputted from any of the ports. The optical path changing part inputs the wavelength components condensed by the second optical system, and output the wavelength components to an output optical path which is parallel to but not on the same line as the input optical paths of the wavelength components.
    • 本发明涉及一种可变得更小并可以抑制特性劣化的可变光复用器/解复用器。 光复用器/解复用器包括第一光学系统,波长分支器件,第二光学系统和光路改变部件。 光复用器/解复用器具有多个输入/输出端口,并且第一光学系统,波长分支器件和第二光学系统设置在端口和光路改变部分之间。 当光进入任何一个端口时,包含在光中的各个波长分量从任何端口输出。 光路改变部输入由第二光学系统聚光的波长成分,并将波长分量输出到与波长成分的输入光路平行但不在同一条线上的输出光路。
    • 5. 发明申请
    • Optical multiplexer/demultiplexer, optical device, and optical transmission system
    • 光复用器/解复用器,光学设备和光传输系统
    • US20050238284A1
    • 2005-10-27
    • US11101634
    • 2005-04-08
    • Michiko TakushimaTomomi Sano
    • Michiko TakushimaTomomi Sano
    • G02B6/28G02B6/34
    • G02B6/29311G02B6/29313G02B6/2938
    • An optical system 111 collimates wavelength components of wavelengths λ1-λ3 emerging from an end face of optical fiber 11, a diffraction grating 121 separates them by wavelength, and an optical system 112 condenses them. The component of the wavelength λ1 is focused at a focus position by the optical system 112 and diverges after the focus position. Then the component of the wavelength λ1 is collimated by an optical system 113, travels via a diffraction grating 122, and is condensed by an optical system 114 to enter an end face of optical fiber 22. The component of the wavelengths λ2, λ3 condensed by the optical system 112 are reflected by reflecting portions 132, 133 set at their respective focus positions, are collimated by the optical system 112, travel via the diffraction grating 121, and are condensed by the optical system 111 to enter an end face of optical fiber.
    • 光学系统111对从光纤11的端面出射的波长λ1-λ3的波长分量进行准直,衍射光栅121通过波长分离,光学系统112将它们冷凝。 波长λ1的分量由光学系统112聚焦在聚焦位置,并在聚焦位置之后发散。 然后,波长λ1的分量由光学系统113准直,经由衍射光栅122行进,并被光学系统114聚光,以进入光纤22的端面。波长λ2,λ3的分量 被光学系统112聚光的反射部分被设置在它们各自的聚焦位置处的反射部分132,133反射,被光学系统112准直,经由衍射光栅121行进,并被光学系统111冷凝,进入 光纤。
    • 9. 发明申请
    • Optical signal processor
    • 光信号处理器
    • US20050063702A1
    • 2005-03-24
    • US10927502
    • 2004-08-27
    • Yuji IkedaMichiko TakushimaTomomi SanoYoshikazu Kanai
    • Yuji IkedaMichiko TakushimaTomomi SanoYoshikazu Kanai
    • G02B6/34G02F1/00G02F2/00H01S3/00H04B10/00H04J14/00
    • G02B6/29311G02B6/29313G02B6/29373G02B6/2938
    • In an incoming path, light fed to an input port is demultiplexed by a wavelength demultiplexer in terms of wavelength, converged by a first light-converging optical system, reflected by a first reflecting mirror, turned into parallel light by the first light-converging optical system, and multiplexed by the wavelength demultiplexer, so as to be fed to a reflecting surface of a rectangular reflecting mirror. In an outgoing path, the light reflected by the rectangular reflecting mirror is demlutiplexed by the wavelength demultiplexer in terms of wavelengths, converged by the first light-converging optical system, reflected by the first reflecting mirror, turned into parallel light by the first light-converging optical system, and multiplexed by the wavelength demultiplexer, so as to be fed to an output port. An image of each wavelength light component reflected by the first reflecting mirror is inverted between the incoming and outgoing paths.
    • 在入射路径中,馈送到输入端口的光被波长解复用器解复用,其波长由第一聚光光学系统收敛,第一聚光光学系统由第一反射镜反射,由第一聚光光学器件变成平行光 系统,并由波长解复用器复用,以便被馈送到矩形反射镜的反射表面。 在出射路径中,由波长解复用器反射的光被波长解复用,由第一聚光光学系统收敛,由第一反射镜反射,由第一光聚焦光学系统变成平行光, 会聚光学系统,并被波长解复用器复用,以便被馈送到输出端口。 由第一反射镜反射的每个波长光分量的图像在输入和输出路径之间被反转。
    • 10. 发明授权
    • Optical fiber grating element, production method, and optical fiber filter
    • 光纤光栅元件,生产方法和光纤滤波器
    • US06487340B2
    • 2002-11-26
    • US09903763
    • 2001-07-13
    • Tadashi EnomotoShinji IshikawaMasakazu ShigeharaMichiko Takushima
    • Tadashi EnomotoShinji IshikawaMasakazu ShigeharaMichiko Takushima
    • G02B634
    • G02B6/02095G02B6/03633G02B6/03666G02B6/14G02B6/266
    • The present invention relates to an optical fiber grating element having structure enabling more precise design and fabrication, a production method thereof, and an optical fiber filter including the same. The optical fiber grating element according to the present invention comprises a multi-mode optical fiber having a first core region of a refractive index n1, a second core of a refractive index n2 provided on a periphery of the first core region, and a cladding region of a refractive index n3 provided on a periphery of the second core region, and having a cutoff wavelength regarding to LP02-mode light on the longer wavelength side than a wavelength band in use. A long-period grating for selectively coupling the fundamental LP01-mode light of a predetermined wavelength in the wavelength band I use to LP0m (m≧2)-mode light is provided in a predetermined region of the first core region.
    • 本发明涉及具有能够进行更精确的设计和制造的结构的光纤光栅元件及其制造方法以及包括该光纤光栅的光纤滤波器。 根据本发明的光纤光栅元件包括具有折射率n1的第一纤芯区域和设置在第一纤芯区域周围的折射率n2的第二纤芯的多模光纤,以及包覆区域 设置在第二纤芯区域的周围的折射率n3,并且在比使用的波长带更长的波长侧具有关于LP02模式光的截止波长。 在第一核心区域的预定区域中提供用于将波长带I中使用的预定波长的基本LP01模式光选择性地耦合到LP0m(m> = 2)模式光的长周期光栅。