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13 条记录 (耗时 0.031 秒)

    Optical amplifier
    1.
    发明授权
    Optical amplifier 失效
    光放大器

    公开(公告)号：US07145717B2

    公开(公告)日：2006-12-05

    申请号：US10793273

    申请日：2004-03-05

    申请人： Masao Nakata ,  Kosuke Komaki ,  Yoshio Shimano

    发明人： Masao Nakata ,  Kosuke Komaki ,  Yoshio Shimano

    IPC分类号： H04B10/12

    CPC分类号： H04B10/296 ,  H01S3/10015 ,  H01S3/1301 ,  H01S5/0617

    摘要： An optical amplifier that improves transmission quality by driving an excitation light source according to a change in the level of an input optical signal and by compensating for a change in the characteristics of the excitation light source. An optical amplification section includes an amplification medium doped with an active substance for optical amplification and an excitation light source for emitting excitation light. A constant-gain control section finds out target excitation light power to be set according to a change in the level of an input optical signal on the basis of a correlation between a gain and excitation light power to obtain a target gain, finds out a target drive signal for making the excitation light source emit the target excitation light power on the basis of a correlation between a drive signal for driving the excitation light source and excitation light power, and exercises constant-gain control over the optical amplification section by a feedforward control system.

    摘要翻译： 一种光放大器，其通过根据输入光信号的电平的变化驱动激励光源并补偿激发光源的特性的变化来提高传输质​​量。 光放大部分包括掺杂有用于光放大的活性物质的放大介质和用于发射激发光的激发光源。 恒定增益控制部根据增益与激励光功率之间的相关关系，根据输入光信号的电平的变化，求出要设定的目标激励光功率，求出目标增益，求出目标 驱动信号用于使激发光源基于用于驱动激励光源的驱动信号与激励光功率之间的相关性发射目标激励光功率，并且通过前馈控制对光放大部分进行恒定增益控制 系统。

    RAMAN AMPLIFIER AND RAMAN AMPLIFIER ADJUSTMENT METHOD
    4.
    发明申请
    RAMAN AMPLIFIER AND RAMAN AMPLIFIER ADJUSTMENT METHOD 审中-公开
    拉曼放大器和拉曼放大器调整方法

    公开(公告)号：US20090153951A1

    公开(公告)日：2009-06-18

    申请号：US12351560

    申请日：2009-01-09

    申请人： Maki Hiraizumi ,  Yoshio Shimano ,  Masao Nakata

    发明人： Maki Hiraizumi ,  Yoshio Shimano ,  Masao Nakata

    IPC分类号： H01S3/30

    CPC分类号： H01S3/10015 ,  H01S3/005 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0912 ,  H01S3/094096 ,  H01S3/0941 ,  H01S3/1305 ,  H01S3/1608 ,  H01S3/302 ,  H04B10/0775 ,  H04B10/2916

    摘要： A pumping unit supplies pumping light to a fiber connecting medium, a light monitoring unit detects light power of multiple-wavelength light; and a control unit controls the pumping light based on light power detected by the light monitoring unit and connecting medium information indicating optical characteristics in the connecting medium. The connecting medium information includes information indicating a fiber type of the fiber connecting medium, information indicating a length of the fiber connecting medium, an average fiber loss coefficient of the fiber connecting medium and an intra-station loss value.

    摘要翻译： 泵送单元向纤维连接介质提供泵浦光，光监测单元检测多波长光的光功率; 并且控制单元基于由光监视单元检测到的光功率和指示连接介质中的光学特性的连接介质信息来控制泵浦光。 连接介质信息包括指示光纤连接介质的光纤类型的信息，指示光纤连接介质的长度的信息，光纤连接介质的平均光纤损耗系数和站内损耗值。

    Optical amplifier
    5.
    发明申请
    Optical amplifier 有权
    光放大器

    公开(公告)号：US20080316591A1

    公开(公告)日：2008-12-25

    申请号：US12213565

    申请日：2008-06-20

    申请人： Tatsuya Tsuzuki ,  Norifumi Shukunami ,  Yuji Tamura ,  Yoshio Shimano ,  Masao Nakata ,  Takashi Satou

    发明人： Tatsuya Tsuzuki ,  Norifumi Shukunami ,  Yuji Tamura ,  Yoshio Shimano ,  Masao Nakata ,  Takashi Satou

    IPC分类号： H01S3/00

    CPC分类号： H04B10/2942 ,  H01S3/06758 ,  H01S3/1301 ,  H01S2301/04

    摘要： According to an aspect of the embodiment of the invention, an optical amplifier including an input port, an output port, a plurality of amplifying parts, an optical attenuator, a gain controller and an optical attenuator controller. The plurality of amplifying parts includes an optical amplification medium and a pumping light source for generating pump light. The optical attenuator is optically connected between the amplifying parts. The gain controller controls the pump light power of the pump sources, respectively, in such a way that the ratio decreases in accordance with the gain set value increasing and the ratio interpose between a first threshold level and a second threshold level. The optical attenuator controller controls attenuation of the optical attenuator in order to maintain the sum of generating gains of the amplifying parts in the gain set value in accordance with a state of the signal light inputted into the input port.

    摘要翻译： 根据本发明实施例的一个方面，一种包括输入端口，输出端口，多个放大部件，光衰减器，增益控制器和光衰减器控制器的光放大器。 多个放大部件包括光放大介质和用于产生泵浦光的泵浦光源。 光衰减器光学连接在放大部件之间。 增益控制器分别控制泵浦源的泵浦光功率，使得该比率根据增益设定值增加而减小，并且比例介于第一阈值水平和第二阈值水平之间。 光衰减器控制器控制光衰减器的衰减，以便根据输入到输入端口的信号光的状态将放大部分的增益的总和保持在增益设定值中。

    RAMAN AMPLIFIER AND RAMAN AMPLIFIER ADJUSTMENT METHOD
    6.
    发明申请
    RAMAN AMPLIFIER AND RAMAN AMPLIFIER ADJUSTMENT METHOD 有权
    拉曼放大器和拉曼放大器调整方法

    公开(公告)号：US20120307351A1

    公开(公告)日：2012-12-06

    申请号：US13562086

    申请日：2012-07-30

    申请人： Maki Hiraizumi ,  Yoshio Shimano ,  Masao Nakata

    发明人： Maki Hiraizumi ,  Yoshio Shimano ,  Masao Nakata

    IPC分类号： H01S3/30

    CPC分类号： H01S3/10015 ,  H01S3/005 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0912 ,  H01S3/094096 ,  H01S3/0941 ,  H01S3/1305 ,  H01S3/1608 ,  H01S3/302 ,  H04B10/0775 ,  H04B10/2916

    摘要： A pumping unit supplies pumping light to a fiber connecting medium; a light monitoring unit detects light power of multiple-wavelength light; and a control unit controls the pumping light based on light power detected by the light monitoring unit and connecting medium information indicating optical characteristics in the connecting medium. The connecting medium information includes information indicating a fiber type of the fiber connecting medium, information indicating a length of the fiber connecting medium, an average fiber loss coefficient of the fiber connecting medium and an intra-station loss value.

    摘要翻译： 泵送单元向光纤连接介质提供泵浦光; 光监视单元检测多波长光的光功率; 并且控制单元基于由光监视单元检测到的光功率和指示连接介质中的光学特性的连接介质信息来控制泵浦光。 连接介质信息包括指示光纤连接介质的光纤类型的信息，指示光纤连接介质的长度的信息，光纤连接介质的平均光纤损耗系数和站内损耗值。

    Raman amplifier and Raman amplifier adjustment method
    7.
    发明授权
    Raman amplifier and Raman amplifier adjustment method 有权
    拉曼放大器和拉曼放大器调节方法

    公开(公告)号：US07554721B2

    公开(公告)日：2009-06-30

    申请号：US10882266

    申请日：2004-07-02

    申请人： Maki Hiraizumi ,  Yoshio Shimano ,  Masao Nakata

    发明人： Maki Hiraizumi ,  Yoshio Shimano ,  Masao Nakata

    IPC分类号： H04B10/17

    CPC分类号： H01S3/10015 ,  H01S3/005 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0912 ,  H01S3/094096 ,  H01S3/0941 ,  H01S3/1305 ,  H01S3/1608 ,  H01S3/302 ,  H04B10/0775 ,  H04B10/2916

    摘要： A pumping unit supplies pumping light to a fiber connecting medium; a light monitoring unit detects light power of multiple-wavelength light; and a control unit controls the pumping light based on light power detected by the light monitoring unit and connecting medium information indicating optical characteristics in the connecting medium. The connecting medium information includes information indicating a fiber type of the fiber connecting medium, information indicating a length of the fiber connecting medium, an average fiber loss coefficient of the fiber connecting medium and an intra-station loss value.

    摘要翻译： 泵送单元向光纤连接介质提供泵浦光; 光监视单元检测多波长光的光功率; 并且控制单元基于由光监视单元检测到的光功率和指示连接介质中的光学特性的连接介质信息来控制泵浦光。 连接介质信息包括指示光纤连接介质的光纤类型的信息，指示光纤连接介质的长度的信息，光纤连接介质的平均光纤损耗系数和站内损耗值。

    Raman amplifier and raman amplifier adjustment method
    9.
    发明授权
    Raman amplifier and raman amplifier adjustment method 有权
    拉曼放大器和拉曼放大器调节方法

    公开(公告)号：US08339698B2

    公开(公告)日：2012-12-25

    申请号：US12873795

    申请日：2010-09-01

    申请人： Maki Hiraizumi ,  Yoshio Shimano ,  Masao Nakata

    发明人： Maki Hiraizumi ,  Yoshio Shimano ,  Masao Nakata

    IPC分类号： H04B10/17

    CPC分类号： H01S3/10015 ,  H01S3/005 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0912 ,  H01S3/094096 ,  H01S3/0941 ,  H01S3/1305 ,  H01S3/1608 ,  H01S3/302 ,  H04B10/0775 ,  H04B10/2916

    摘要： A pumping unit supplies pumping light to a fiber connecting medium; a light monitoring unit detects light power of multiple-wavelength light; and a control unit controls the pumping light based on light power detected by the light monitoring unit and connecting medium information indicating optical characteristics in the connecting medium. The connecting medium information includes information indicating a fiber type of the fiber connecting medium, information indicating a length of the fiber connecting medium, an average fiber loss coefficient of the fiber connecting medium and an intra-station loss value.

    摘要翻译： 泵送单元向光纤连接介质提供泵浦光; 光监视单元检测多波长光的光功率; 并且控制单元基于由光监视单元检测到的光功率和指示连接介质中的光学特性的连接介质信息来控制泵浦光。 连接介质信息包括指示光纤连接介质的光纤类型的信息，指示光纤连接介质的长度的信息，光纤连接介质的平均光纤损耗系数和站内损耗值。

    Multistage optical amplifier with gain control using pump ratio
    10.
    发明授权
    Multistage optical amplifier with gain control using pump ratio 有权
    具有增益控制的多级光放大器使用泵比

    公开(公告)号：US07929201B2

    公开(公告)日：2011-04-19

    申请号：US12213565

    申请日：2008-06-20

    申请人： Tatsuya Tsuzuki ,  Norifumi Shukunami ,  Yuji Tamura ,  Yoshio Shimano ,  Masao Nakata ,  Takashi Satou

    发明人： Tatsuya Tsuzuki ,  Norifumi Shukunami ,  Yuji Tamura ,  Yoshio Shimano ,  Masao Nakata ,  Takashi Satou

    IPC分类号： H04B10/17 ,  H04B10/12

    CPC分类号： H04B10/2942 ,  H01S3/06758 ,  H01S3/1301 ,  H01S2301/04

    摘要： According to an aspect of the embodiment of the invention, an optical amplifier including an input port, an output port, a plurality of amplifying parts, an optical attenuator, a gain controller and an optical attenuator controller. The plurality of amplifying parts includes an optical amplification medium and a pumping light source for generating pump light. The optical attenuator is optically connected between the amplifying parts. The gain controller controls the pump light power of the pump sources, respectively, in such a way that the ratio decreases in accordance with the gain set value increasing and the ratio interpose between a first threshold level and a second threshold level. The optical attenuator controller controls attenuation of the optical attenuator in order to maintain the sum of generating gains of the amplifying parts in the gain set value in accordance with a state of the signal light inputted into the input port.

    摘要翻译： 根据本发明实施例的一个方面，一种包括输入端口，输出端口，多个放大部件，光衰减器，增益控制器和光衰减器控制器的光放大器。 多个放大部件包括光放大介质和用于产生泵浦光的泵浦光源。 光衰减器光学连接在放大部件之间。 增益控制器分别控制泵浦源的泵浦光功率，使得该比率根据增益设定值增加而减小，并且比例介于第一阈值水平和第二阈值水平之间。 光衰减器控制器控制光衰减器的衰减，以便根据输入到输入端口的信号光的状态将放大部分的增益的总和保持在增益设定值中。