公开(公告)号：US20120027343A1

公开(公告)日：2012-02-02

申请号：US13269886

申请日：2011-10-10

申请人： Koji IGARASHI ,  Shunichi Matsushita ,  Shu Namiki ,  Shigehiro Takasaka ,  Takashi Inoue ,  Hideaki Tobioka ,  Jiro Hiroishi

发明人： Koji IGARASHI ,  Shunichi Matsushita ,  Shu Namiki ,  Shigehiro Takasaka ,  Takashi Inoue ,  Hideaki Tobioka ,  Jiro Hiroishi

IPC分类号： G02B6/26

CPC分类号： H04B10/299 ,  G02F1/3513 ,  H04B10/25077

摘要： An optical regeneration system for regenerating a degenerated signal light, comprising a regeneration device having at least one of a soliton converter, a pulse roller, a Kerr-shutter and a soliton purifier. The solilton converter uses an anomalaous-dispersion fiber (ADF) having a fiber length up to three times the soliton frequency, and the pulse roller is provided with a pulse roller fiber having high non-linear characteristics. The Kerr-shutter comprises an optical LO (local oscillation) generator for generating an optical LO on an OPLL (optical phase locked loop), a phase comparator for detecting the phase difference between an externally-input signal light and an optical LO, and a control unit for regulating the repeated frequency of an optical LO based on the phase difference. The soliton purifier has a soliton fiber disposed between two optical fibers.

摘要翻译： 一种用于再生退化信号光的光学再生系统，包括具有孤子转换器，脉冲辊，Kerr快门和孤子净化器中的至少一个的再生装置。 solilton转换器使用光纤长度高达孤子频率三倍的异常色散光纤（ADF），脉冲辊设有具有高非线性特性的脉冲辊光纤。 Kerr-shutter包括用于在OPLL（光锁相环）上产生光LO的光LO（本地振荡）发生器，用于检测外部输入信号光与光LO之间的相位差的相位比较器，以及 控制单元，用于基于相位差来调节光学LO的重复频率。 孤子净化器具有设置在两根光纤之间的孤子光纤。

公开(公告)号：US20090003394A1

公开(公告)日：2009-01-01

申请号：US12136533

申请日：2008-06-10

申请人： Atsushi Oguri ,  Shunichi Matsushita

发明人： Atsushi Oguri ,  Shunichi Matsushita

IPC分类号： H01S3/10 ,  H01S3/00

CPC分类号： H01S3/06754 ,  H01S3/0057 ,  H01S3/06704 ,  H01S3/06725 ,  H01S3/06779 ,  H01S3/2316

摘要： The pulse light source according to the present invention comprises: a seed pulse generator 1 for outputting an input pulse 10 as a seed pulse; a pulse amplifier 2; and a dispersion compensator 3 for dispersion compensating a light pulse output from the pulse amplifier 2. Moreover, the pulse amplifier 2 comprises a normal dispersion medium (DCF 4) and an amplification medium (EDF 5) that are multistage-connected alternately, for changing the input pulse 10 to a light pulse having a linear chirp and outputting the light pulse. Furthermore, an absolute value of the dispersion of the DCF 4 becomes to be larger than the absolute value of the dispersion of the EDF 5.

摘要翻译： 根据本发明的脉冲光源包括：种子脉冲发生器1，用于输出作为种子脉冲的输入脉冲10; 脉冲放大器2; 以及用于色散补偿从脉冲放大器2输出的光脉冲的色散补偿器3.此外，脉冲放大器2包括交替多级连接的正常分散介质（DCF4）和放大介质（EDF 5），用于改变 输入脉冲10到具有线性啁啾的光脉冲并输出光脉冲。 此外，DCF 4的色散的绝对值变得大于EDF 5的色散的绝对值。

公开(公告)号：US20060204170A1

公开(公告)日：2006-09-14

申请号：US10516306

申请日：2003-06-11

申请人： Koji Igarashi ,  Shunichi Matsushita ,  Shu Namiki ,  Shigerhiro Takasaka ,  Takashi Inoue ,  Hideaki Tobioka ,  Jiro Hiroishi

发明人： Koji Igarashi ,  Shunichi Matsushita ,  Shu Namiki ,  Shigerhiro Takasaka ,  Takashi Inoue ,  Hideaki Tobioka ,  Jiro Hiroishi

IPC分类号： G02B6/28

CPC分类号： H04B10/299 ,  G02F1/3513 ,  H04B10/25077

摘要： An optical regeneration system for regenerating a degenerated signal light, comprising a regeneration device having at least one of a soliton converter, a pulse roller, a Kerr-shutter and a soliton purifier. The solilton converter uses an anomalaous-dispersion fiber (ADF) having a fiber length up to three times the soliton frequency, and the pulse roller is provided with a pulse roller fiber having high non-linear characteristics. The Kerr-shutter comprises an optical LO (local oscillation) generator for generating an optical LO on an OPLL (optical phase locked loop), a phase comparator for detecting the phase difference between an externally-input signal light and an optical LO, and a control unit for regulating the repeated frequency of an optical LO based on the phase difference. The soliton purifier has a soliton fiber disposed between two optical fibers.

摘要翻译： 一种用于再生退化信号光的光学再生系统，包括具有孤子转换器，脉冲辊，Kerr快门和孤子净化器中的至少一个的再生装置。 solilton转换器使用光纤长度高达孤子频率三倍的异常色散光纤（ADF），脉冲辊设有具有高非线性特性的脉冲辊光纤。 Kerr-shutter包括用于在OPLL（光锁相环）上产生光LO的光LO（本地振荡）发生器，用于检测外部输入信号光与光LO之间的相位差的相位比较器，以及 控制单元，用于基于相位差来调节光学LO的重复频率。 孤子净化器具有设置在两根光纤之间的孤子光纤。

公开(公告)号：US06977769B2

公开(公告)日：2005-12-20

申请号：US10062189

申请日：2002-01-30

申请人： Shunichi Matsushita ,  Yoshihiro Emori ,  Shu Namiki

发明人： Shunichi Matsushita ,  Yoshihiro Emori ,  Shu Namiki

IPC分类号： G02F1/35 ,  H01S3/00 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/30

CPC分类号： H04B10/2916 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/094073 ,  H01S3/09408 ,  H01S3/0941 ,  H01S3/30 ,  H01S3/302

摘要： Disclosed are: a pump light source device for Raman amplification for outputting a pump light for causing signal lightwaves introduced into an optical fiber to undergo Raman amplification therein, the device including two light sources, a polarization beam combiner or a polarization-maintaining optical beam coupler to which two lightwaves are input and which is adapted to combine and output these lightwaves, and a depolarizer adapted to depolarize and output the input lightwaves, wherein the lightwaves output from the two light sources are input to the polarization beam combiner or the polarization-maintaining optical beam coupler to output a combined composite lightwave, the composite lightwave being input to the depolarizer to output a lightwave with lower degree of polarization; and a Raman amplification system using the same.

摘要翻译： 公开了一种用于拉伸放大的泵浦光源装置，用于输出用于使引入光纤的信号光波进行拉曼放大的泵浦光，该装置包括两个光源，偏振光束组合器或偏振保持光束耦合器 其中输入两个光波并适于组合和输出这些光波;以及去偏振器，其适于去偏振和输出输入光波，其中从两个光源输出的光波输入到偏振光束组合器或偏振维持 光束耦合器输出组合的复合光波，复合光波被输入到去偏振器以输出具有较低偏振度的光波; 和使用其的拉曼放大系统。

公开(公告)号：US06831775B2

公开(公告)日：2004-12-14

申请号：US10053231

申请日：2002-01-17

申请人： Shunichi Matsushita ,  Osamu Aso ,  Misao Sakano

发明人： Shunichi Matsushita ,  Osamu Aso ,  Misao Sakano

IPC分类号： G02F202

CPC分类号： H01S5/50 ,  G02F1/3536 ,  G02F2/004 ,  H01S5/041 ,  H01S5/5054 ,  H04B10/2563 ,  H04B10/29

摘要： A wavelength converting method and apparatus which converts wavelength division multiplexed (WDM) signal light, having a plurality of channels, by four-wave mixing the WDM signal light with at least one pump lightwave. Wavelength conversion of the WDM signal is accomplished without producing noise by FWM the WDM signal with a pump lightwave, wherein the pump lightwave frequency is separated from the WDM signal by an interval equal to or greater than the bandwidth of the WDM signal. Two pump lightwaves can be used instead of one, wherein one of the pump lightwaves has a frequency on one side of the bandwidth of the WDM signal, and the average frequency of the two pump lightwaves is on the other side of the WDM signal bandwidth.

摘要翻译： 一种波长转换方法和装置，其通过将WDM信号光与至少一个泵浦光波进行四波混频来转换具有多个通道的波分复用（WDM）信号光。 WDM信号的波长转换通过FWM产生具有泵浦光波的WDM信号的噪声，其中泵浦光波频率与WDM信号分离等于或大于WDM信号的带宽的间隔。 可以使用两个泵浦波，而不是一个泵浦光波，其中一个泵浦光波在WDM信号的带宽的一侧具有频率，并且两个泵浦光波的平均频率在WDM信号带宽的另一侧。

公开(公告)号：US08275010B2

公开(公告)日：2012-09-25

申请号：US12136533

申请日：2008-06-10

申请人： Atsushi Oguri ,  Shunichi Matsushita

发明人： Atsushi Oguri ,  Shunichi Matsushita

IPC分类号： H01S3/30

CPC分类号： H01S3/06754 ,  H01S3/0057 ,  H01S3/06704 ,  H01S3/06725 ,  H01S3/06779 ,  H01S3/2316

摘要： The pulse light source according to the present invention comprises: a seed pulse generator 1 for outputting an input pulse 10 as a seed pulse; a pulse amplifier 2; and a dispersion compensator 3 for dispersion compensating a light pulse output from the pulse amplifier 2. Moreover, the pulse amplifier 2 comprises a normal dispersion medium (DCF 4) and an amplification medium (EDF 5) that are multistage-connected alternately, for changing the input pulse 10 to a light pulse having a linear chirp and outputting the light pulse. Furthermore, an absolute value of the dispersion of the DCF 4 becomes to be larger than the absolute value of the dispersion of the EDF 5.

摘要翻译： 根据本发明的脉冲光源包括：种子脉冲发生器1，用于输出作为种子脉冲的输入脉冲10; 脉冲放大器2; 以及用于色散补偿从脉冲放大器2输出的光脉冲的色散补偿器3.此外，脉冲放大器2包括交替多级连接的正常分散介质（DCF4）和放大介质（EDF 5），用于改变 输入脉冲10到具有线性啁啾的光脉冲并输出光脉冲。 此外，DCF 4的色散的绝对值变得大于EDF 5的色散的绝对值。

公开(公告)号：US08059966B2

公开(公告)日：2011-11-15

申请号：US10516306

申请日：2003-06-11

申请人： Koji Igarashi ,  Shunichi Matsushita ,  Shu Namiki ,  Shigehiro Takasaka ,  Takashi Inoue ,  Hideaki Tobioka ,  Jiro Hiroishi

发明人： Koji Igarashi ,  Shunichi Matsushita ,  Shu Namiki ,  Shigehiro Takasaka ,  Takashi Inoue ,  Hideaki Tobioka ,  Jiro Hiroishi

IPC分类号： H04B10/02

CPC分类号： H04B10/299 ,  G02F1/3513 ,  H04B10/25077

摘要： An optical regeneration system for regenerating a degenerated signal light, comprising a regeneration device having at least one of a soliton converter, a pulse roller, a Kerr-shutter and a soliton purifier. The solilton converter uses an anomalous-dispersion fiber (ADF) having a fiber length up to three times the soliton frequency, and the pulse roller is provided with a pulse roller fiber having high non-linear characteristics. The Kerr-shutter comprises an optical LO (local oscillation) generator for generating an optical LO on an OPLL (optical phase locked loop), a phase comparator for detecting the phase difference between an externally-input signal light and an optical LO, and a control unit for regulating the repeated frequency of an optical LO based on the phase difference. The soliton purifier has a soliton fiber disposed between two optical fibers.

摘要翻译： 一种用于再生退化信号光的光学再生系统，包括具有孤子转换器，脉冲辊，Kerr快门和孤子净化器中的至少一个的再生装置。 solilton转换器使用具有高达孤子频率三倍的光纤长度的异常色散光纤（ADF），并且脉冲辊设置有具有高非线性特性的脉冲辊光纤。 Kerr-shutter包括用于在OPLL（光锁相环）上产生光LO的光LO（本地振荡）发生器，用于检测外部输入信号光与光LO之间的相位差的相位比较器，以及 控制单元，用于基于相位差来调节光学LO的重复频率。 孤子净化器具有设置在两根光纤之间的孤子光纤。

公开(公告)号：US20090016669A1

公开(公告)日：2009-01-15

申请号：US12135657

申请日：2008-06-09

申请人： Atsushi OGURI ,  Shunichi Matsushita

发明人： Atsushi OGURI ,  Shunichi Matsushita

IPC分类号： G02B5/30 ,  G02B6/00 ,  G02B6/10

CPC分类号： G02F1/365 ,  G02F1/3513 ,  G02F2201/16 ,  G02F2201/17 ,  G02F2203/06 ,  H01S3/0057 ,  H04B10/508

摘要： Provided is an ultra-short pulse light source having an optical pulse generator 111 for emitting short pulse light, an optical amplifier 112 for amplifying the short pulse light output from the optical pulse generator 111 and an optical compressor 120 for compressing the short pulse light. The optical compressor 120 has multi-step configuration of steps polarization beam splitters 1211,2, optical fibers 1221,2, 1231,2 for compressing the incident pulse light, polarization rotating element 1241,2, for rotating the polarization direction of the incident light by 90 degrees to return the light to the optical fibers 1231,2, polarization maintaining optical fibers 1251,2 provided to the output side of the polarization beam splitters 1211,2, and a polarization maintaining optical fiber 1251 at the front step is connected to a polarization maintaining optical fiber 1252 at the rear step.

摘要翻译： 提供了一种具有用于发射短脉冲光的光脉冲发生器111的超短脉冲光源，用于放大从光脉冲发生器111输出的短脉冲光的光放大器112和用于压缩短脉冲光的光学压缩器120。 光压缩机120具有步骤偏振分束器1211,2的多步构造，用于压缩入射脉冲光的光纤1221,2,1231,2，用于旋转入射光的偏振方向的偏振旋转元件1241,2 90度以将光返回到光纤1231,2，设置在偏振光束分离器1211,2的输出侧的偏振维持光纤1251,2和前级的偏振保持光纤1251连接到 后级的偏振保持光纤1252。

公开(公告)号：US07400442B2

公开(公告)日：2008-07-15

申请号：US10645528

申请日：2003-08-22

申请人： Shunichi Matsushita ,  Shu Namiki ,  Yoshihiro Emori

发明人： Shunichi Matsushita ,  Shu Namiki ,  Yoshihiro Emori

IPC分类号： H01S3/00

CPC分类号： H01S3/302 ,  H01S3/094003 ,  H01S3/094073 ,  H01S3/094096 ,  H01S3/2375 ,  H01S5/146

摘要： An optical signal amplifier includes a light source, a depolarizer, and a gain medium that transfers energy from a pump beam output from the depolarizer to the optical signal. The depolarizer may include one or more birefringent optical fibers which support two polarization modes, a fast mode and a slow mode. The light propagates in the fast mode at a higher velocity than the light propagates in the slow mode so as to impart phase delay as the light propagates in the birefringent optical fibers, thereby at least partially depolarizing the beam. A method for using the amplifier with different types of transmission fibers enables the matching of depolarizers with relatively high percentage of degree of polarization, depending on fiber type, while staying below polarization dependent gain requirements.

摘要翻译： 光信号放大器包括光源，去偏振器和将从去偏振器输出的泵浦光束的能量传递到光信号的增益介质。 去极化器可以包括一种或多种支持两种偏振模式的双折射光纤，即快速模式和慢速模式。 光在快速模式下以比在慢速模式中传播的光速更高的速度传播，以便当光在双折射光纤中传播时给予相位延迟，从而至少部分地使光束去极化。 使用具有不同类型的传输光纤的放大器的方法使得取决于光纤类型的去偏振器的匹配度具有相对高百分比的偏振度，同时保持在偏振相关增益要求之下。

公开(公告)号：US06920263B2

公开(公告)日：2005-07-19

申请号：US10056925

申请日：2002-01-24

申请人： Masateru Tadakuma ,  Osamu Aso ,  Shunichi Matsushita ,  Misao Sakano ,  Shu Namiki

发明人： Masateru Tadakuma ,  Osamu Aso ,  Shunichi Matsushita ,  Misao Sakano ,  Shu Namiki

IPC分类号： G02F1/365 ,  G02F1/35 ,  G02B6/26

CPC分类号： G02F1/3519 ,  G02F2203/26 ,  H04B10/508

摘要： An optical pulse generator comprises a comb-like dispersion profiled fiber formed into an optical loop mirror. The fiber may comprise three or more segments of fiber having alternating highly dispersive and highly nonlinear characteristics. The optical loop mirror construction splits an input pulse into two portions that propagate through the CDPF in opposite directions. The pulse portions are re-combined, and a compressed pulse with reduced noise is produced.

摘要翻译： 光脉冲发生器包括形成光环路镜的梳状分散型纤维。 纤维可以包括具有交替的高度分散和高度非线性特性的三个或更多个纤维段。 光环路镜结构将输入脉冲分成两部分，它们以相反的方向传播通过CDPF。 脉冲部分被重新组合，并且产生具有降低的噪声的压缩脉冲。