Optical dispersion compensation method for shifting a zero dispersion
wavelength of an optical fiber to compensate for dispersion in an
optical system
    5.
    发明授权
    Optical dispersion compensation method for shifting a zero dispersion wavelength of an optical fiber to compensate for dispersion in an optical system 失效
    用于偏移光纤的零色散波长以补偿光学系统中的色散的光色散补偿方法

    公开(公告)号:US5602666A

    公开(公告)日:1997-02-11

    申请号:US425573

    申请日:1995-04-20

    摘要: An optical wavelength multiplex transmission method uses a band around a zero dispersion wavelength of an optical fiber to compensate for waveform degradation, which is produced by a synergetic effect of self phase modulation and chromatic dispersion, to increase transmission distance and transmission rate in optical systems. The optical dispersion compensation method is performed in an optical system including a transmitter, a repeater and a receiver, which collectively transmit and receive optical information along the optical fiber. Light is transmitted within a transmissible band which is defined by an allowable dispersion value determined from a synergetic effect of self phase modulation and group velocity dispersion in the optical fiber. The transmissible band is set on a shorter wavelength side than a shorter wavelength end .lambda..theta.-.DELTA..lambda..theta. or on a longer wavelength side than a longer wavelength end .lambda..theta.+.DELTA..lambda..theta. of the zero-dispersion wavelength deviation range of the optical fiber. The zero dispersion wavelength .DELTA..theta. of the optical fiber is shifted to apparently arrange the signal light into the transmissible band to compensate for the dispersion amount of the optical transmission system.

    摘要翻译: 光波长复用传输方法使用光纤的零色散波长附近的频带来补偿由自相位调制和色散的协同效应产生的波形劣化,以增加光学系统中的传输距离和传输速率。 光学色散补偿方法在包括发射机,中继器和接收机的光学系统中执行,该光学系统共同地沿光纤发送和接收光学信息。 光在透射带内传输,其由通过光纤中的自相位调制和群速度色散的协同效应确定的容许色散值限定。 透射带设置在比较短波长端λθ-ΔTATAθ较短的波长侧,或者在比光纤的零色散波长偏差范围的较长波长端λθ+ΔTATAλθ更长的波长侧 。 光纤的零色散波长DELTAθ被移位以将信号光明显地布置在透射频带中,以补偿光传输系统的色散量。

    Optical amplifier which compensates for dispersion of a WDM optical signal
    8.
    发明授权
    Optical amplifier which compensates for dispersion of a WDM optical signal 失效
    补偿WDM光信号色散的光放大器

    公开(公告)号:US06930824B1

    公开(公告)日:2005-08-16

    申请号:US09080909

    申请日:1998-05-19

    摘要: The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength λ0 of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.

    摘要翻译: 本发明提供一种光波长多路复用传输方法,其中使用光纤零色散波长附近的频带,并且将光信号设置在影响频带,波长色散和四波混频的有效信道间隔处 考虑到实现不受FWM串扰影响的增加容量的光通信系统。 当使用光纤复用并传输具有不同波长的多个信道的光信号时,包括预定带宽的四波混频抑制保护带包括零色散波长λ<0> 设置光纤,并且多路复用的多个信道的信号光波被布置在保护带外部的短波长侧和较长波长侧中的一个上。

    Optical wavelength multiplex transmission method and optical dispersion compensation method
    9.
    发明授权
    Optical wavelength multiplex transmission method and optical dispersion compensation method 失效
    光波长复用传输方法和光色散补偿方法

    公开(公告)号:US06243176B1

    公开(公告)日:2001-06-05

    申请号:US08917292

    申请日:1997-08-25

    IPC分类号: H04J1402

    摘要: The invention provides an optical wavelength multiplex transmission method wherein a band in the proximity of a zero dispersion wavelength of an optical fiber is used and optical signals are disposed at efficient channel spacings taking an influence of the band, the wavelength dispersion and the four wave mixing into consideration to realize an optical communication system of an increased capacity which is not influenced by crosstalk by FWM. When optical signals of a plurality of channels having different wavelengths are to be multiplexed and transmitted using an optical fiber, a four wave mixing suppressing guard band of a predetermined bandwidth including the zero-dispersion wavelength &lgr;&thgr; of the optical fiber is set, and signal light waves of the plurality of channels to be multiplexed are arranged on one of the shorter wavelength side and the longer wavelength side outside the guard band.

    摘要翻译: 本发明提供一种光波长多路复用传输方法,其中使用光纤零色散波长附近的频带,并且将光信号设置在影响频带,波长色散和四波混频的有效信道间隔处 考虑到实现不受FWM串扰影响的增加容量的光通信系统。 当使用光纤复用和发送具有不同波长的多个信道的光信号时,设置包括光纤的零色散波长的预定带宽的四波混频抑制保护带,并且信号光 要复用的多个信道的波被布置在保护带外部的较短波长侧和较长波长侧中的一个上。