Chromatic dispersion compensator and chromatic dispersion compensating optical communication system
    51.
    发明公开
    Chromatic dispersion compensator and chromatic dispersion compensating optical communication system 失效
    色散补偿器和色散补偿光通信系统

    公开(公告)号:EP0732819A3

    公开(公告)日:1998-03-11

    申请号:EP95115335.2

    申请日:1995-09-28

    IPC分类号: H04B10/18

    摘要: A chromatic dispersion compensator of the present invention includes an optical circulator or a directional coupler having a first, second and third ports; an input transmission path connected to the first port; an output transmission path connected to the third port; a chirped grating connected to the second port; and a dispersion compensating fiber connected to at least one of the first, second and third ports, the dispersion compensating fiber and the chirped grating giving chromatic dispersion characteristic reverse to the chromatic dispersion characteristic of the input and output transmission path. In the wavelength compensator, the optical signal is incident into the first port from the input transmission path, and is made to go out to the chirped grating from the second port. Further, the optical signal is incident from the chirped grating to return to the second port, and is made to go to the output transmission path from the third port.

    摘要翻译: 本发明的色散补偿器包括具有第一,第二和第三端口的光环行器或定向耦合器; 输入传输路径,连接到所述第一端口; 连接到第三端口的输出传输路径; 连接到第二端口的啁啾光栅; 以及与第一,第二和第三端口中的至少一个连接的色散补偿光纤,色散补偿光纤和啁啾光栅给出与输入和输出传输路径的色散特性相反的色散特性。 在波长补偿器中,光信号从输入传输路径入射到第一端口,并从第二端口出射到啁啾光栅。 此外,光信号从啁啾光栅入射以返回到第二端口,并且从第三端口进入输出传输路径。

    Filtre passe-bande inscrit dans un guide d'onde optique
    52.
    发明公开
    Filtre passe-bande inscrit dans un guide d'onde optique 失效
    Optischer Wellenleiter mit eingeschriebenem Bandpassfilter

    公开(公告)号:EP0826990A1

    公开(公告)日:1998-03-04

    申请号:EP97401982.0

    申请日:1997-08-25

    IPC分类号: G02B6/293 G02B6/14

    摘要: Un filtre passe-bande, inscrit dans un guide d'onde optique, comporte au moins un réseau de Bragg (BG1) créant un couplage entre deux modes de propagation. Selon un mode de réalisation, le pas (s) du réseau est égal à la longueur de battement de ces deux modes, pour créer un couplage co-directionnel pour les modes LP01 et LP0i. Selon un autre mode de réalisation, le réseau couple le mode LP01 à un mode de radiation contradirectionnel quelconque.
    Il comporte, au moins en un point de ce réseau, une zone (PS1) où une demi-période du réseau est omise pour créer un déphasage de π entre les deux modes couplés.

    摘要翻译: 通带滤波器包括至少一个布拉格光栅(BG1),其产生两种传播模式之间的耦合。 光栅的步长等于两种模式的拍子长度,以产生两种模式(LP01,LP0i)的同向耦合。 在替代的结构模式中,光栅可将模式LP01与另一种反向辐射模式耦合在一起。 在至少一个位置的光栅内部,省略光栅的半周期的区域(PS1),以在两个耦合模式之间产生pi的相移。 使用的波导可以是锥形单模光纤,光栅形成在该光纤的锥形部分上。

    Dispersion compensation
    53.
    发明公开
    Dispersion compensation 失效
    Dispersionskompensation

    公开(公告)号:EP0766359A2

    公开(公告)日:1997-04-02

    申请号:EP96305903.5

    申请日:1996-08-12

    发明人: Epworth, Richard

    IPC分类号: H01S3/133

    摘要: The emission waveband of a data modulated (22) laser (20) signal is locked to the reflection waveband of a chirped Bragg grating dispersion compensator (10, 11, 12) by means of a phase locked loop regulating the temperature of the laser or the magnitude of the drive current applied to it.

    摘要翻译: 数据调制(22)激光(20)信号的发射波段通过调节激光器的温度的锁相环锁定到啁啾的布拉格光栅色散补偿器(10,11,12)的反射波段,或者 施加到其上的驱动电流的大小。

    Chromatic dispersion compensator and chromatic dispersion compensating optical communication system
    54.
    发明公开
    Chromatic dispersion compensator and chromatic dispersion compensating optical communication system 失效
    Farbzerstreuungskompensator und farbstreuungskompensierendes optischesÜbertragungssystem

    公开(公告)号:EP0732819A2

    公开(公告)日:1996-09-18

    申请号:EP95115335.2

    申请日:1995-09-28

    IPC分类号: H04B10/18

    摘要: A chromatic dispersion compensator of the present invention includes an optical circulator or a directional coupler having a first, second and third ports; an input transmission path connected to the first port; an output transmission path connected to the third port; a chirped grating connected to the second port; and a dispersion compensating fiber connected to at least one of the first, second and third ports, the dispersion compensating fiber and the chirped grating giving chromatic dispersion characteristic reverse to the chromatic dispersion characteristic of the input and output transmission path. In the wavelength compensator, the optical signal is incident into the first port from the input transmission path, and is made to go out to the chirped grating from the second port. Further, the optical signal is incident from the chirped grating to return to the second port, and is made to go to the output transmission path from the third port.

    摘要翻译: 本发明的色散补偿器包括具有第一,第二和第三端口的光循环器或定向耦合器; 连接到第一端口的输入传输路径; 连接到第三端口的输出传输路径; 连接到第二端口的啁啾光栅; 以及连接到第一,第二和第三端口中的至少一个的色散补偿光纤,色散补偿光纤和啁啾光栅赋予与输入和输出传输路径的色散特性相反的色散特性。 在波长补偿器中,光信号从输入传输路径入射到第一端口中,并从第二端口出来到啁啾光栅。 此外,光信号从啁啾光栅入射回到第二端口,并使其从第三端口进入输出传输路径。

    Article comprising an otpical waveguide with in-line refractive index grating
    55.
    发明公开
    Article comprising an otpical waveguide with in-line refractive index grating 失效
    Gegenstand mit einem optischen Wellenleiter mit Brechungsindexgitter。

    公开(公告)号:EP0572169A1

    公开(公告)日:1993-12-01

    申请号:EP93303906.7

    申请日:1993-05-20

    申请人: AT&T Corp.

    发明人: Mizrahi, Victor

    IPC分类号: G02B6/16 G02B6/34 H01S3/06

    摘要: Broadband in-line gratings (19, 30) in optical waveguides (17) are disclosed. The gratings have a bandwidth of at least 2 nm (preferably at least 4 nm) and a peak reflectivity of at least 70% (preferably at least 90%). Exemplarily, such gratings can be formed in H₂-treated Si-based fibers that support a normalized index change of at least 10⁻³. Gratings according to the invention can be used, for instance, to form pump radiation reflectors in an optical fiber communication system (10) with Er-doped fiber amplifiers, or to flatten the amplifier gain curve. The gratings can be of the blazed or non-blazed type.

    摘要翻译: 公开了光波导(17)中的宽带直线光栅(19,30)。 光栅具有至少2nm(优选至少4nm)的带宽和至少70%(优选至少90%)的峰值反射率。 示例性地,这种光栅可以形成在支持至少10 -3的归一化指数变化的经H2处理的Si基纤维中。 根据本发明的光栅可用于例如在具有掺铒光纤放大器的光纤通信系统(10)中形成泵浦辐射反射器,或者使放大器增益曲线变平坦。 光栅可以是闪耀型或非闪光型。

    CHANNELIZED DISPERSION COMPENSATION MODULE
    58.
    发明公开
    CHANNELIZED DISPERSION COMPENSATION MODULE 审中-公开
    KANALISIERTES DISPERSIONSKOMPENSATIONSMODUL

    公开(公告)号:EP2115502A1

    公开(公告)日:2009-11-11

    申请号:EP08715785.5

    申请日:2008-02-15

    IPC分类号: G02B6/02 G02B6/293

    摘要: There is disclosed an optical device for dispersion compensation of channels within a predetermined wavelength band, comprising: a waveguiding structure; and a grating structure formed in said waveguiding structure; characterized in that said grating structure has a Bragg frequency profile that is divided into contiguous periods, wherein the Bragg frequencies within each period vary between a lower Bragg frequency and an upper Bragg frequency, said lower and upper Bragg frequencies for each period both corresponding to wavelengths outside of said predetermined wavelength band.