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19 条记录 (耗时 0.033 秒)

    Light branching/inserting apparatus and light branching apparatus using wavelength selection filter
    3.
    发明授权
    Light branching/inserting apparatus and light branching apparatus using wavelength selection filter 失效
    光分路/插入装置和使用波长选择滤波器的光分支装置

    公开(公告)号：US07142785B2

    公开(公告)日：2006-11-28

    申请号：US10354077

    申请日：2003-01-30

    申请人： Kazue Otsuka ,  Hiroshi Onaka ,  Terumi Chikama

    发明人： Kazue Otsuka ,  Hiroshi Onaka ,  Terumi Chikama

    IPC分类号： H04B10/00

    CPC分类号： H04J14/021 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0221

    摘要： A light branching/inserting apparatus which can easily control light signal wavelengths, and which can branch, insert or transmit light signals having an optional wavelength and optional multiplexed number, by using a wavelength selection filter utilizing acousto-optic effects. The apparatus comprises; an ADM node section 10 which has an AOTF 11 with four ports as a wavelength selection filter and is connected to a transmission path, an RF signal generator 20 which generates an RF signal of an optional frequency and applies the signal to the AOTF 11, a selected wavelength-variable light branching section 30 which receives and processes the light signal output from the branching port of the AOTF 11 for each wavelength, a light inserting section 40 which generates an optional number of insertion light signals with optional wavelengths and sends the insertion light signals to an insertion port of the AOTF 11, and a monitoring section 50 which monitors the spectrum of the light signal input/output to/from the ADM node section 10.

    摘要翻译： 一种光分支/插入装置，其可以容易地控制光信号波长，并且可以通过使用利用声光效应的波长选择滤波器来分支，插入或发送具有可选波长和可选复用数的光信号。 该装置包括： 具有AOTF 11的ADM节点部分10，其具有四个端口作为波长选择滤波器并连接到传输路径; RF信号发生器20，其生成任选频率的RF信号并将该信号施加到AOTF 11; 选择的波长可变光分支部分30，其接收和处理从每个波长的AOTF 11的分支端口输出的光信号;光插入部分40，其产生任选数量的具有任选波长的插入光信号，并发送插入光 信号到AOTF11的插入端口，以及监视部分50，其监视从/从ADM节点部分10输入/输出的光信号的频谱。

    Light branching/inserting apparatus and light branching apparatus using wavelength selection filter
    4.
    发明授权
    Light branching/inserting apparatus and light branching apparatus using wavelength selection filter 失效
    光分路/插入装置和使用波长选择滤波器的光分支装置

    公开(公告)号：US06538782B1

    公开(公告)日：2003-03-25

    申请号：US09076068

    申请日：1998-05-12

    申请人： Kazue Otsuka ,  Hiroshi Onaka ,  Terumi Chikama

    发明人： Kazue Otsuka ,  Hiroshi Onaka ,  Terumi Chikama

    IPC分类号： H04B1000

    CPC分类号： H04J14/021 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0221

    摘要： A light branching/inserting apparatus which can easily control light signal wavelengths, and which can branch, insert or transmit light signals having an optional wavelength and optional multiplexed number, by using a wavelength selection filter utilizing acousto-optic effects. The apparatus comprises; an ADM node section 10 which has an AOTF 11 with four ports as a wavelength selection filter and is connected to a transmission path, an RF signal generator 20 which generates an RF signal of an optional frequency and applies the signal to the AOTF 11, a selected wavelength-variable light branching section 30 which receives and processes the light signal output from the branching port of the AOTF 11 for each wavelength, a light inserting section 40 which generates an optional number of insertion light signals with optional wavelengths and sends the insertion light signals to an insertion port of the AOTF 11, and a monitoring section 50 which monitors the spectrum of the light signal input/output to/from the ADM node section 10.

    摘要翻译： 一种光分支/插入装置，其可以容易地控制光信号波长，并且可以通过使用利用声光效应的波长选择滤波器来分支，插入或发送具有可选波长和可选复用数的光信号。 该装置包括： 具有AOTF 11的ADM节点部分10，其具有四个端口作为波长选择滤波器并连接到传输路径; RF信号发生器20，其生成任选频率的RF信号并将该信号施加到AOTF 11; 选择的波长可变光分支部分30，其接收和处理从每个波长的AOTF 11的分支端口输出的光信号;光插入部分40，其产生任选数量的具有任选波长的插入光信号，并发送插入光 信号到AOTF11的插入端口，以及监视部分50，其监视从/从ADM节点部分10输入/输出的光信号的频谱。

    Optical transmission system employing single mode optical transmission fiber
    7.
    发明授权
    Optical transmission system employing single mode optical transmission fiber 失效
    采用单模光纤传输光纤的光传输系统

    公开(公告)号：US5886804A

    公开(公告)日：1999-03-23

    申请号：US627722

    申请日：1996-04-01

    申请人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka

    发明人： Hiroshi Onaka ,  Hideyuki Miyata ,  Kazue Otsuka

    IPC分类号： G02F2/00 ,  H04B10/2507 ,  H04B10/2525 ,  H04B10/2557 ,  H04B10/54 ,  H04B10/548 ,  H04B10/58 ,  H04B10/00

    CPC分类号： H04B10/2525 ,  H04B2210/256

    摘要： In an optical transmission system for intensively modulating an optical wavelength with a sending signal to be transmitted and optically amplifying a modulated optical signal, a wavelength dispersion characteristic of a single mode optical transmission line can be suitably compensated. The optical transmission system comprises a modulating circuit for modulating optical phases or frequencies of the optical wavelength with the sending signal to set a chirping parameter .alpha. to -0.65 to -1.3, and outputting an modulated signal; an optical transmission line having wavelength residual dispersion value of 16 to 21 ps/nm/Km for transmitting the modulated signal; and a dispersion compensating circuit for compensating wavelength dispersion value, of the optical transmission line, which is set to approximately +500 to +1200 ps/nm when an input optical power is more than -5 dBm.

    摘要翻译： 在利用要发送的发送信号和光学放大调制的光信号来集中调制光波长的光传输系统中，可以适当地补偿单模光传输线的波长色散特性。 光传输系统包括调制电路，用于利用发送信号调制光学相位或光波长的频率，以将啁啾参数α设置为-0.65至-1.3，并输出调制信号; 具有用于发送调制信号的波长残留色散值为16〜21ps / nm / Km的光传输线路; 以及用于补偿光传输线的波长色散值的色散补偿电路，当输入光功率大于-5dBm时，其被设置为大约+500至+1200ps / nm。

    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

    申请人： George Ishikawa ,  Hideyuki Miyata ,  Hiroshi Onaka ,  Motoyoshi Sekiya ,  Kazue Otsuka

    发明人： George Ishikawa ,  Hideyuki Miyata ,  Hiroshi Onaka ,  Motoyoshi Sekiya ,  Kazue Otsuka

    IPC分类号： G02B6/34 ,  H04B10/18 ,  H04J14/02 ,  H04B10/17 ,  H01S3/30

    CPC分类号： H04J14/0224 ,  H04B10/25133 ,  H04B10/2525 ,  H04B10/25253 ,  H04B10/255 ,  H04B10/2563 ,  H04B2210/252 ,  H04B2210/254 ,  H04B2210/258 ,  H04J14/02

    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

    申请人： George Ishikawa ,  Hideyuki Miyata ,  Hiroshi Onaka ,  Motoyoshi Sekiya ,  Kazue Otsuka

    发明人： George Ishikawa ,  Hideyuki Miyata ,  Hiroshi Onaka ,  Motoyoshi Sekiya ,  Kazue Otsuka

    IPC分类号： H04J1402

    CPC分类号： G02B6/29377 ,  G02B6/4215 ,  H04B10/25133 ,  H04B10/2525 ,  H04B10/25253 ,  H04B10/255 ,  H04B10/2563 ,  H04B2210/252 ,  H04B2210/254 ,  H04B2210/258 ,  H04J14/02 ,  H04J14/0224

    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。