Optical filter
    81.
    发明公开
    Optical filter 审中-公开
    Optisches过滤器

    公开(公告)号:EP1052745A2

    公开(公告)日:2000-11-15

    申请号:EP00810102.4

    申请日:2000-02-07

    申请人: JDS Uniphase Inc.

    IPC分类号: H01S3/067 G02B5/28

    摘要: This invention relates to invention relates to a variable slope optical filter in the form of a Fabry-Perôt etalon having an end face with a variable finesse. A method for filtering and a variable slope optical filter for in-line use with an optical amplifier signal is also disclosed. The filter has a wavelength response that is substantially linear in slope within a band of operation wavelengths of the amplifier; the slope of the filter in an operating band of wavelengths is between zero and a only one of a positive or negative number; furthermore the filter has an amplitude response that has an opposite and counter slope as a function of wavelength to that of a gain tilt of the amplifier within the operation band of wavelengths. Relative movement between the filter and the optical amplifier signal is provided to vary the slope of the filter by means of varying the amplitude wavelength response of the filter.

    摘要翻译: 本发明涉及一种法布里 - 珀罗标准具形式的可变斜率光学滤波器,其具有可变微细度的端面。 还公开了一种用于滤波的方法和用于与光放大器信号在线使用的可变斜率滤光器。 滤波器具有波长响应,其在放大器的工作波长范围内的斜率基本上是线性的; 波长工作频带中的滤波器的斜率在零和仅为正数或负数之间; 此外,滤波器具有幅度响应,其具有与波长的操作频带内的放大器的增益倾斜的波长的函数相反的和相反的斜率。 提供滤波器和光放大器信号之间的相对运动,以通过改变滤波器的幅度波长响应来改变滤波器的斜率。

    MMI Thermo-optic coupler
    82.
    发明公开
    MMI Thermo-optic coupler 审中-公开
    Thermo-optischer多模式干扰器

    公开(公告)号:EP1048971A1

    公开(公告)日:2000-11-02

    申请号:EP00303626.6

    申请日:2000-04-28

    申请人: JDS Uniphase Inc.

    发明人: Paiam, Reza

    IPC分类号: G02F1/065 G02B6/125

    摘要: A multi-mode interference coupler is disclosed for coupling light between ports. The MMI coupler is a planar waveguide having a first input port for launching light into a core of the planar waveguide which has first refractive index n 1 . The waveguide is dimensioned to have a response that confines light launched therein to a single mode in one dimension, and multi-mode in another dimension. Two other ports are provided for receiving light launched into and propagating through the core from the input port. A polymer cladding of a second material having a refractive index n 2 covers at least a portion of the core. A heater is provided and is thermally coupled to the cladding for heating the cladding when a control signal is applied.

    摘要翻译: 本发明涉及一种可变滤波器,其可用于滤波输入信号,衰减输入信号或在一个配置中将输入信号从一个路径切换到另一个路径。 本发明已经发现,通过使用具有高膨胀系数的弹性体材料,可以与用于局部地改变弹性体材料的温度的装置一起作为用于移动内部的反射表面的致动器来产生精确和经济的可变滤光器 滤光片。 致动器可以例如受控的方式操作,以实现用于切换或衰减光信号的反射表面的倾斜,或改变部分反射表面之间的谐振腔的谐振波长。 根据本发明,提供一种包括输入端口和输出端口的可变滤光器; 设置成接收从输入端口发射的光束的第一至少部分反射表面; 用于相对于输入端口支撑和改变至少部分反射表面的位置的弹性体材料; 加热器,用于向所述弹性体材料施加可变量的热量以相对于所述输入端口移动或枢转所述至少部分反射表面; 以及用于控制加热器并提供信号以应用可变量的热量的控制装置。

    Low loss grating for high efficiency wavelength stabilized high power lasers
    84.
    发明公开
    Low loss grating for high efficiency wavelength stabilized high power lasers 审中-公开
    Ver aser aser aser aser aser aser aser aser aser aser aser aser aser aser aser aser aser

    公开(公告)号:EP1696527A2

    公开(公告)日:2006-08-30

    申请号:EP06250939.3

    申请日:2006-02-22

    申请人: JDS Uniphase Inc.

    IPC分类号: H01S5/12 H01S5/125

    摘要: A low optical loss and high efficiency grating is placed within a broad-area high-power laser diode or single spatial mode laser diode to narrow the spectral width and stabilize the emission wavelength. Several embodiments of grating configurations are presented, together with the measured results of a reduction to practice of a particular embodiment.

    摘要翻译: 低光损耗和高效率光栅放置在广域大功率激光二极管或单空间模式激光二极管中,以缩小光谱宽度并稳定发射波长。 呈现了光栅配置的几个实施例,以及减少到特定实施例的实践的测量结果。

    Electrode configuration for pivotable MEMS micromirror
    86.
    发明公开
    Electrode configuration for pivotable MEMS micromirror 有权
    可旋转MEMS微镜的电极配置

    公开(公告)号:EP1479646A3

    公开(公告)日:2005-01-05

    申请号:EP04405316.3

    申请日:2004-05-21

    申请人: JDS Uniphase Inc.

    摘要: A micro-electro-mechanical (MEMs) mirror device for use in an optical switch is disclosed. A "piano"-style MEMs device includes an elongated platform pivotally mounted proximate the middle thereof by a torsional hinge. The middle portion of the platform and the torsional hinge have a combined width less than the width of the rest of the platform, whereby several of these "piano" MEMs devices can be positioned adjacent each other pivotally mounted about the same axis with only a relatively small air gap therebetween. In a preferred embodiment of the present invention specially designed for wavelength switching applications, a greater range of arcuate motion for a mirror mounted thereon is provided by enabling the platform to rotate about two perpendicular axes. The MEMs mirror device according to the preferred embodiment of the present invention enables the mirror to tilt about two perpendicular axes, by the use of an "internal" gimbal ring construction, which ensures that a plurality of adjacent mirror devices have a high fill factor, without having to rely on complicated and costly manufacturing processes.

    摘要翻译: 公开了一种用于光开关的微机电(MEMs)镜装置。 “钢琴”式MEMS装置包括通过扭转铰链枢转地安装在其中部附近的细长平台。 平台的中间部分和扭转铰链具有小于平台其余部分的宽度的组合宽度,由此这些“钢琴”MEM装置中的几个可以被定位成彼此相邻且绕相同的轴线枢转地安装, 它们之间的小气隙。 在为波长切换应用而特别设计的本发明的优选实施例中,通过使平台围绕两个垂直轴线旋转来提供安装在其上的镜子的更大范围的弓形运动。 根据本发明的优选实施例的MEMS反射镜装置通过使用“内部”万向环结构使得反射镜能够围绕两个垂直轴倾斜,这确保了多个相邻反射镜装置具有高填充因子, 而不必依赖复杂且昂贵的制造工艺。

    Optical amplifier using bulk optics
    87.
    发明公开
    Optical amplifier using bulk optics 审中-公开
    一种光放大器,与固体光学器件(“散装”)

    公开(公告)号:EP1128502A3

    公开(公告)日:2004-04-28

    申请号:EP00310661.4

    申请日:2000-11-30

    申请人: JDS Uniphase Inc.

    IPC分类号: H01S3/06 H01S3/094 H04B10/17

    摘要: The present invention relates to an in-line optical amplifier that can be coupled to optical fibre, wherein the amplifying medium (22;44) has a substantially larger mode field than the optical fibre (20) to which it is coupled. The present invention has realized a design to utilize a very high power pump launching a multimoded signal having approximately 1W of pump power into a block (22;44) of erbium doped glass having a mode field diameter orders of magnitude larger than the mode field diameter of erbium doped fibre. By using a block of glass having a rare earth therein, packaging, temperature stabilizing and temperature tuning of the amplifier also become practicable. Furthermore, a cylindrical block of glass having planar ends, lends itself to applying coatings or filters (52;54) thereto, thereby forming selective filters at ends of the erbium doped block to allow the pump light in, and the signal light in at opposite ends, while preventing light at the pump wavelength to propagate out with the amplified signal.

    Apparatus for varying the optical characteristics of an optical fiber by stretching the fiber
    88.
    发明公开
    Apparatus for varying the optical characteristics of an optical fiber by stretching the fiber 审中-公开
    设备,用于通过拉伸相同的改变光纤的光学特性

    公开(公告)号:EP1136858A3

    公开(公告)日:2004-03-17

    申请号:EP01302023.5

    申请日:2001-03-06

    申请人: JDS Uniphase Inc.

    IPC分类号: G02B6/36 G02B6/16 G02F1/01

    摘要: Apparatus for modifying the optical characteristics of an optical fiber by controlled stretching of a length of the fiber, comprising a first fiber holder (16) fixedly carried by a base (10) and capable of firmly holding a first portion of the optical fiber, a lever part (14) attached to the base at a fulcrum (12), and second fiber holder (18) movably connected to the lever part and capable of firmly holding a second portion of the fiber, so that an intermediate length of the fiber may be held taut between said first and second holding means. An electromagnetic circuit (22,23) moves the lever part between first and second predetermined positions, so that the intermediate length of fiber is stretched as the lever part moves between first and second positions. Preferably, the intermediate length of fiber includes a Bragg grating (20).

    Multiplexing/demultiplexing optical circuit
    89.
    发明公开
    Multiplexing/demultiplexing optical circuit 审中-公开
    光学复用/解复用电路

    公开(公告)号:EP1126293A3

    公开(公告)日:2004-02-25

    申请号:EP00310572.3

    申请日:2000-11-29

    申请人: JDS Uniphase Inc.

    发明人: Xiaoli, Fu Jimin, Xie

    IPC分类号: G02B6/293 G02B6/34

    摘要: A circuit for de-interleaving or interleaving multichannel optical signals having a predetermined inter-channel frequency spacing, uses a plurality of sequentially coupled periodic filters of a similar free spectral range, for example Fabry-Perot etalon-based interleavers/de-interleavers. The spectral response of the consecutive filters is shifted to accommodate different channel groupings. The free-spectral range of each of the interleavers is similar and the channel period is larger than two adjacent inter-channel frequency spacings of an input optical signal.