光増幅器、光増幅システム、波長変換器および光通信システム
    1.
    发明申请
    光増幅器、光増幅システム、波長変換器および光通信システム 审中-公开
    光放大器,光放大系统,波长转换器和光通信系统

    公开(公告)号:WO2015030251A1

    公开(公告)日:2015-03-05

    申请号:PCT/JP2014/073006

    申请日:2014-09-02

    Inventor: 高坂 繁弘

    Abstract:  増幅用光ファイバと、前記増幅用光ファイバに入力されるシグナル光を前記増幅用光ファイバの非線形光学効果によってパラメトリック増幅するためのポンプ光を前記増幅用光ファイバに供給するポンプ光源と、を備え、前記増幅用光ファイバは、長手方向において零分散波長の変動が0.5nm/100mの範囲内である光増幅器である。これにより、利得スペクトルの平坦性と広帯域性とを実現しつつ、さらに高利得な光増幅器、光増幅システム、波長変換器および光通信システムが提供される。

    Abstract translation: 一种光放大器,具有放大光纤和泵浦光源,其通过放大光纤的非线性光学效应将泵浦光提供给放大光纤,泵浦光用于参量放大,该信号光被输入 到放大光纤。 在纵向上,放大光纤的零色散波长的变化在0.5nm /100μm的范围内。 从而,实现增益频谱的平坦性和宽带性能,并且提供高增益光放大器,光放大系统,波长转换器和光通信系统。

    スペクトル幅狭窄化方法、および、光学素子ならびに光源装置
    2.
    发明申请
    スペクトル幅狭窄化方法、および、光学素子ならびに光源装置 审中-公开
    光谱宽度方法,光学元件和光源装置

    公开(公告)号:WO2011136220A1

    公开(公告)日:2011-11-03

    申请号:PCT/JP2011/060162

    申请日:2011-04-26

    CPC classification number: G02F1/395 G02B6/02247 G02F1/3513 H01S3/067

    Abstract:  波長可変光源から照射された超短光パルス波にも適応することができ、ノイズ成分が少ない狭スペクトル幅の出力パルス波を得ることができるスペクトル幅狭窄化方法、および、この狭窄化方法を用いた光学素子、光源装置を得ること。入射パルス光(1)に対する二次分散値(β2)の平均値が負であり、かつ、前記二次分散値(β2)の絶対値が前記入射パルス光(1)の伝搬方向に増加する分散特性を備えた光導波手段(2)を用いて、前記光導波手段(2)の内部で前記入射パルス光(1)にソリトン効果を生じさせることにより、前記入射パルス光1のスペクトル幅を狭窄して出力パルス光(3)とする。

    Abstract translation: 公开了一种可应用于从波长可调光源发射的超短波长的脉冲光并且提供窄光谱宽度的低噪声输出脉冲光的光谱宽度窄化方法。 此外,公开了利用光谱宽度变窄方法的光学元件和光源装置。 具有分散特性的导光装置(2),其中输入脉冲光(1)的二次色散值(ß2)的平均值为负,二次色散值(ß2)的绝对值在传播方向上增加 输入脉冲光(1)用于在光导装置(2)内的输入脉冲光(1)中产生孤子效应,以便使输入脉冲光(1)的光谱宽度变窄并输出该光 作为输出脉冲光(3)。

    SYSTEMS, DEVICES, AND METHODS FOR CONTROLLING NON-LINEAR OPTICAL INTERACTIONS
    3.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR CONTROLLING NON-LINEAR OPTICAL INTERACTIONS 审中-公开
    用于控制非线性光学交互的系统,设备和方法

    公开(公告)号:WO2004114530A2

    公开(公告)日:2004-12-29

    申请号:PCT/US2004/019551

    申请日:2004-06-21

    IPC: H04B

    CPC classification number: G02B6/02261 G02B6/02247 G02B6/29377 H04B10/2525

    Abstract: An optical communications system, comprising a first node, first dispersion compensation fiber located in the first node, wherein the first dispersion compensation fiber induces dispersion onto optical signals passing through the first dispersion compensation fiber, a second node, a plurality of spans between the first and second nodes, and second dispersion compensation fiber located in at least one of the spans, wherein the second dispersion compensation fiber induces dispersion onto optical signals passing through the second dispersion compensation fiber, and wherein the dispersion induced by the second dispersion compensation fiber is opposite in sign to that induced by the first dispersion compensation fiber.

    Abstract translation: 一种光通信系统,包括第一节点,位于第一节点中的第一色散补偿光纤,其中第一色散补偿光纤在通过第一色散补偿光纤的光信号,第二节点,第一色散补偿光纤之间的多个跨度 和第二色散补偿光纤,其中所述第二色散补偿光纤在通过所述第二色散补偿光纤的光信号上引起色散,并且其中由所述第二色散补偿光纤引起的色散相反 由第一种色散补偿光纤引起的。

    FIBER DEVICE WITH HIGH NONLINEARITY, DISPERSION CONTROL AND GAIN
    4.
    发明申请
    FIBER DEVICE WITH HIGH NONLINEARITY, DISPERSION CONTROL AND GAIN 审中-公开
    具有高非线性,色散控制和增益的光纤设备

    公开(公告)号:WO2005043200A2

    公开(公告)日:2005-05-12

    申请号:PCT/US2004036353

    申请日:2004-11-03

    Inventor: KNOX WAYNE H

    Abstract: An optical fiber is tapered, for example, by heating it with a CO2 laser. The tapering process is controlled such that the taper transition regions have taper angles selected to minimize loss. The taper waist has a diameter selected to introduce desired dispersion properties and desired nonlinearity. The optical fiber can be used as a dispersion compensator in a fiber laser or other fiber optic system. The nonlinearity in the tapered optical fiber allows the generation of ultrashort light pulses.

    Abstract translation: 例如,通过用CO2激光加热光纤来使光纤变细。 锥形过程被控制成使得锥形过渡区域具有被选择为使损失最小化的锥角。 锥形腰部的直径选择为引入期望的分散特性和期望的非线性。 光纤可以用作光纤激光器或其他光纤系统中的色散补偿器。 锥形光纤的非线性允许产生超短光脉冲。

    METHOD OF MAKING OPTICAL FIBERS
    7.
    发明申请
    METHOD OF MAKING OPTICAL FIBERS 审中-公开
    制造光纤的方法

    公开(公告)号:WO99054763A1

    公开(公告)日:1999-10-28

    申请号:PCT/US1999/007845

    申请日:1999-04-09

    Abstract: An optical fiber and method of making, wherein the optical fiber alternates between regions having different diameters along its length, wherein the refractive index of said blank and the diameters of said fiber are chosen to result in a fiber having alternating regions of positive and negative dispersion at a wavelength which is greater than 1480 nm, yet preferably has a low net dispersion and dispersion slope. A preferred such profile consists of a core region surrounded by a cladding region, said core region comprised of a central core region which is updoped with respect to said cladding region, said central core region surrounded by a moat region which is downdoped with respect to said cladding region, and said moat region is surrounded by an annular ring region which is updoped with respect to said cladding region.

    Abstract translation: 一种光纤和制造方法,其中所述光纤沿着其长度在具有不同直径的区域之间交替,其中所述坯料的折射率和所述光纤的直径被选择以产生具有正和负分散的交替区域的光纤 在大于1480nm的波长处,优选具有低的净色散和色散斜率。 优选的这种轮廓由包围区域围绕的芯区域组成,所述芯区域由相对于所述包层区域上升的中心芯区域组成,所述中心芯区域由相对于所述包层区域下凹的护城河区域围绕 包围区域,并且所述护环区域被相对于所述包层区域上升的环形环区域围绕。

    METHOD AND OPTICAL FIBER DEVICE FOR PRODUCTION OF LOW-NOISE CONTINUUM
    8.
    发明申请
    METHOD AND OPTICAL FIBER DEVICE FOR PRODUCTION OF LOW-NOISE CONTINUUM 审中-公开
    用于生产低噪声连续的方法和光纤设备

    公开(公告)号:WO2006066093A2

    公开(公告)日:2006-06-22

    申请号:PCT/US2005045631

    申请日:2005-12-16

    Inventor: KNOX WAYNE H LU FEI

    Abstract: A waveguide, such as a holey fiber or other optical fiber, is tapered to control the dispersion in a manner which varies along the length of the tapered portion of the fiber, thus providing the desired characteristics of the fiber. The longitudinal variation of the phase-matching conditions for Cherenkov radiation (CR) and four-wave mixing (FWM) introduced by DMM allow the generation of low-noise supercontinuum. The flexibility of the design permits the designer to control the tapering to select the bandwidth, the center frequency, or both. The holey fiber can be a polarization-maintaining fiber.

    Abstract translation: 诸如多孔光纤或其他光纤的波导被锥形化以以沿着光纤的锥形部分的长度变化的方式控制色散,从而提供所需的光纤特性。 由DMM引入的切伦科夫辐射(CR)和四波混合(FWM)的相位匹配条件的纵向变化允许产生低噪声超连续谱。 设计的灵活性允许设计人员控制锥度以选择带宽,中心频率或两者。 多孔纤维可以是偏振保持光纤。

    LOW SLOPE DISPERSION MANAGED WAVEGUIDE
    10.
    发明申请
    LOW SLOPE DISPERSION MANAGED WAVEGUIDE 审中-公开
    低斜率分布管理波形

    公开(公告)号:WO99042869A1

    公开(公告)日:1999-08-26

    申请号:PCT/US1999/003403

    申请日:1999-02-17

    Abstract: Disclosed is a single mode optical waveguide fiber having alternating segments of positive and negative dispersion and dispersion slope. The relative indexes, the refractive index profiles and the radii of the segments are chosen to provide low total dispersion and dispersion slope. One embodiment consists of a first central major index profile (10) of outer radius r1, surrounded by a first annular segment (12) of outer radius r2, surrounded by second annular segment (14) of outer radius r3. Preferred waveguides in accordance with the invention exhibit a dispersion over the range of 1520 to 1625 nm which at all times have a magnitude which is less than 2, and more preferably less than 1 ps/nm -km. The total dispersion of the waveguide fiber is in the range of about -2.0 to +2.0 ps/nm-km at 1550 nm. The waveguide also features a low polarization mode dispersion.

    Abstract translation: 公开了具有正和负色散和色散斜率的交替段的单模光纤光纤。 选择相对指数,折射率分布和段的半径以提供低的总色散和色散斜率。 一个实施例由外半径r1的第一中心主索引轮廓(10)组成,由外半径r2的第一环形段(12)围绕,由外半径r3的第二环形段(14)包围。 根据本发明的优选波导在1520至1625nm的范围内表现出分散,其总是具有小于2,更优选小于1ps / nm 2-km的量级。 波导光纤的总色散在1550nm处在约-2.0至+ 2.0ps / nm-km的范围内。 波导还具有低偏振模色散。

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