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    Control method and control apparatus of optical device
    2.
    发明授权
    Control method and control apparatus of optical device 失效
    光学装置的控制方法和控制装置

    公开(公告)号：US07362925B2

    公开(公告)日：2008-04-22

    申请号：US11144607

    申请日：2005-06-06

    申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

    发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

    IPC分类号： G02F1/1335

    CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

    摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

    摘要翻译： 本发明旨在提供一种用于高精度地控制光学装置的操作设置的控制方法和控制装置，以便在控制之后立即根据与信号光对应的期望关系可靠地获得特性 开始。 为此，本发明的控制装置包括将输入到光学装置的主信号光的一部分分支的光耦合器，根据与光学装置相同的控制参数进行操作的监视光学装置，以及 处理由光耦合器分支的监视光，接收由监视光学装置处理的监视光的光接收器，检测由光接收器接收的监视光之间的关系的检测电路以及光接收器的波长或光功率 信号灯，以及控制电路，其根据由检测电路检测到的关系调整光学装置的控制参数以控制操作设置，使得光学装置的特性变得能够实现与 信号灯。

    Control method and control apparatus of optical device
    3.
    发明授权
    Control method and control apparatus of optical device 失效
    光学装置的控制方法和控制装置

    公开(公告)号：US06934433B2

    公开(公告)日：2005-08-23

    申请号：US10106315

    申请日：2002-03-27

    申请人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

    发明人： Hideyuki Miyata ,  Hiroshi Onaka ,  Tadao Nakazawa ,  Yutaka Kai ,  Hiroshi Miyata ,  Yoichi Takasu ,  Naoki Hashimoto

    IPC分类号： G02B6/30 ,  G02B5/30 ,  G02B6/12 ,  G02B6/122 ,  G02F1/01 ,  G02F1/11 ,  G02F1/125 ,  G02F1/31 ,  H04J14/02 ,  G02B6/26

    CPC分类号： H04J14/0221 ,  G02F1/0121 ,  G02F2203/585 ,  H04B10/0795 ,  H04B10/07953 ,  H04B10/0797

    摘要： The present invention aims at providing a control method and a control apparatus for controlling the operation setting of an optical device with high accuracy, so as to reliably obtain characteristics according to a desired relationship to be set corresponding to a signal light, immediately after the control start. To this end, the control apparatus of the present invention comprises an optical coupler that branches a part of a main signal light input to the optical device, a monitoring optical device that operates in accordance with a control parameter same as for the optical device, and processes the monitor light branched by the optical coupler, a light receiver that receives the monitor light processed by the monitoring optical device, a detecting circuit that detects a relationship between the monitor light received by the light receiver, and the wavelength or optical power of the signal light, and a controlling circuit that adjust the control parameter for the optical device to control the operation setting, based on the relationship detected by the detecting circuit, so that characteristics of the optical device become capable of realizing the relationship to be set corresponding to the signal light.

    摘要翻译： 本发明旨在提供一种用于高精度地控制光学装置的操作设置的控制方法和控制装置，以便在控制之后立即根据与信号光对应的期望关系可靠地获得特性 开始。 为此，本发明的控制装置包括将输入到光学装置的主信号光的一部分分支的光耦合器，根据与光学装置相同的控制参数进行操作的监视光学装置，以及 处理由光耦合器分支的监视光，接收由监视光学装置处理的监视光的光接收器，检测由光接收器接收的监视光之间的关系的检测电路以及光接收器的波长或光功率 信号灯，以及控制电路，其根据由检测电路检测到的关系调整光学装置的控制参数以控制操作设置，使得光学装置的特性变得能够实现与 信号灯。

    Wavelength tunable laser and method of controlling the same
    4.
    发明申请
    Wavelength tunable laser and method of controlling the same 审中-公开
    波长可调激光器及其控制方法

    公开(公告)号：US20060002436A1

    公开(公告)日：2006-01-05

    申请号：US11023985

    申请日：2004-12-29

    申请人： Kazumasa Takabayashi ,  Tadao Nakazawa ,  Yumi Nakazawa ,  Takashi Shiraishi

    发明人： Kazumasa Takabayashi ,  Tadao Nakazawa ,  Yumi Nakazawa ,  Takashi Shiraishi

    IPC分类号： H01S3/10

    CPC分类号： H01S3/106 ,  H01S5/141

    摘要： A wavelength tunable laser is constituted by including a resonator composed of a pair of reflectors arranged to face each other, and inside the resonator, a SOA radiating a laser beam with a gain for a wide range of wavelengths, a transmission-type wavelength tunable filter having an asymmetric filter characteristic, and a phase controller controlling a phase of the laser beam resonating inside the resonator.

    摘要翻译： 波长可调激光器由包括由一对反射器组成的谐振器构成，谐振器内部设置有用于宽波长增益的激光束，透射型波长可调滤波器 具有非对称滤波器特性，以及控制在谐振器内共振的激光束的相位的相位控制器。

    Acousto-optical tunable filters cascaded together
    5.
    发明授权
    Acousto-optical tunable filters cascaded together 失效
    声光可调谐滤波器级联在一起

    公开(公告)号：US07116907B1

    公开(公告)日：2006-10-03

    申请号：US09248103

    申请日：1999-02-11

    申请人： Tadao Nakazawa ,  Hiroshi Onaka ,  Minoru Seino

    发明人： Tadao Nakazawa ,  Hiroshi Onaka ,  Minoru Seino

    IPC分类号： H04B10/00

    CPC分类号： G02F1/113 ,  G02F1/116 ,  G02F1/125 ,  G02F2201/16 ,  G02F2202/20

    摘要： A configuration of acousto-optical tunable filters (AOTF) having stable output characteristics so that the output does not significantly vary with time. The configuration includes a plurality of AOTFs cascaded together. Each AOTF generates a surface acoustic wave in an optical waveguide in accordance with RF signals applied to the AOTF. A phase of a beat generated by the RF signals applied to one of the plurality of AOTFs is different from a phase of a beat generated by the RF signals applied to a different AOTF of the plurality of AOTFs.

    摘要翻译： 具有稳定输出特性的声光可调滤波器（AOTF）的配置，使得输出不随时间显着变化。 该配置包括多个级联在一起的AOTF。 每个AOTF根据施加到AOTF的RF信号在光波导中产生声表面波。 由施加到多个AOTF中的一个的RF信号产生的拍子的相位与由施加到多个AOTF的不同AOTF的RF信号产生的拍子的相位不同。

    Multi-wavelength light source utilizing acousto-optic tunable filter
    9.
    发明授权
    Multi-wavelength light source utilizing acousto-optic tunable filter 失效
    使用声光可调滤波器的多波长光源

    公开(公告)号：US06643060B2

    公开(公告)日：2003-11-04

    申请号：US10029987

    申请日：2001-12-31

    申请人： Naoki Hashimoto ,  Tadao Nakazawa

    发明人： Naoki Hashimoto ,  Tadao Nakazawa

    IPC分类号： H01S300

    CPC分类号： H01S3/083 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/06791 ,  H01S3/08086 ,  H01S3/094096 ,  H01S3/1068 ,  H01S3/302 ,  H01S5/50

    摘要： The present invention aims at providing a multi-wavelength light source for stably generating a plurality of oscillated lights of arbitrary wavelengths by a simplified constitution. To this end, the multi-wavelength light source of the present invention is provided with an acousto-optic tunable filter (AOTF) on an optical path of a resonator including an optical amplifier, so that the AOTF selects lights of plural wavelengths from input lights corresponding to multiple surface acoustic waves at different frequencies, respectively, and shifts the frequencies of the selected lights to output the frequency shifted lights to the optical path, thereby realizing the stable multi-wavelength oscillation of lights being propagated within the resonator.

    摘要翻译： 本发明旨在提供一种通过简化的结构稳定地产生多个任意波长的振荡光的多波长光源。 为此，本发明的多波长光源在包括光放大器的谐振器的光路上设置有声光可调滤波器（AOTF），使得AOTF从输入光中选择多个波长的光 对应于不同频率的多声表面波，并且移动所选择的光的频率以将频移光输出到光路，从而实现在谐振器内传播的光的稳定的多波长振荡。