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    Wavelength tunable laser apparatus and wavelength control method
    1.
    发明授权
    Wavelength tunable laser apparatus and wavelength control method 有权
    波长可调谐激光装置及波长控制方法

    公开(公告)号：US07733933B2

    公开(公告)日：2010-06-08

    申请号：US11833271

    申请日：2007-08-03

    申请人： Hideo Arimoto ,  Kazuhiro Ito ,  Hiroyasu Sasaki

    发明人： Hideo Arimoto ,  Kazuhiro Ito ,  Hiroyasu Sasaki

    IPC分类号： H01S3/00

    CPC分类号： H01S5/146 ,  H01S5/06255

    摘要： Included are: a gain chip having a gain unit and a phase control region; a current supply for causing a positive current to flow to the phase control region; a voltage supply for applying a bias voltage to the phase control region; and a control unit for selectively driving the current supply or the voltage supply depending on a direction of the wavelength shift. The control unit drives the current supply when a laser wavelength is to be shifted to a shorter wavelength side from a wavelength with the current supply and the voltage supply being turned off, and drives the voltage supply when the laser wavelength is to be shifted to a longer wavelength side from a wavelength with the current supply and the voltage supply being turned off.

    摘要翻译： 包括：具有增益单元和相位控制区域的增益芯片; 用于使正电流流向相位控制区域的电流源; 用于向相位控制区域施加偏置电压的电压源; 以及控制单元，用于根据波长偏移的方向选择性地驱动电流源或电压源。 当激光波长从电流供应和电压供应关闭的波长移动到较短波长侧时，控制单元驱动电流源，并且当激光波长被转移到 来自具有电流供应和电压供应的波长的较长波长侧被关闭。

    Laser device and controlling method therefor
    2.
    发明授权
    Laser device and controlling method therefor 有权
    激光装置及其控制方法

    公开(公告)号：US08000359B2

    公开(公告)日：2011-08-16

    申请号：US12332384

    申请日：2008-12-11

    申请人： Hiroyasu Sasaki ,  Hideo Arimoto

    发明人： Hiroyasu Sasaki ,  Hideo Arimoto

    IPC分类号： H01S5/14 ,  H01S5/0687

    CPC分类号： H01S5/141 ,  H01S5/02284 ,  H01S5/0427 ,  H01S5/0625 ,  H01S5/0687

    摘要： A laser device capable of preventing deterioration of a light signal and a controlling method therefor are provided. A wavelength tunable laser module provided with a resonator including the wavelength tunable filter and a semiconductor light amplifier having a phase adjustment region and a light amplifying region, in which a wavelength margin between a peak transmission wavelength of a wavelength tunable filter and a mode hop occurring wavelength on a short wave side is smaller than that on a long wave side includes: a wavelength tunable laser module controller including an optical output sampling portion for detecting light intensity of light emitted from the resonator, a dither signal source for generating a dither signal for varying a phase adjustment signal to be applied to the phase adjustment region so that the detected light intensity becomes the maximum, and an FM signal source for generating an FM signal for oscillating the phase adjustment signal to be applied to the phase adjustment region with a period shorter than a variation period of the dither signal. The optical output sampling portion detects the light intensity in synchronization with oscillation of the phase adjustment signal by the FM signal.

    摘要翻译： 提供一种能够防止光信号劣化的激光装置及其控制方法。 一种波长可调激光模块，其具有包括波长可调滤波器的谐振器和具有相位调整区域和光放大区域的半导体光放大器，其中波长可调滤波器的峰值传输波长与发生跳跃的峰值波长之间 短波侧的波长小于长波侧的波长包括：波长可调激光器模块控制器，包括用于检测从谐振器发射的光的光强度的光输出采样部分，用于产生用于产生抖动信号的抖动信号源 改变要施加到相位调整区域的相位调整信号，使得检测到的光强度变得最大;以及FM信号源，用于产生用于使相位调整信号振荡的相关调整信号的FM信号，该相位调整信号以周期 短于抖动信号的变化周期。 光输出采样部分通过FM信号与相位调整信号的振荡同步地检测光强度。

    Laser Device and Controlling Method Therefor
    3.
    发明申请
    Laser Device and Controlling Method Therefor 有权
    激光装置及其控制方法

    公开(公告)号：US20090262762A1

    公开(公告)日：2009-10-22

    申请号：US12332384

    申请日：2008-12-11

    申请人： Hiroyasu Sasaki ,  Hideo Arimoto

    发明人： Hiroyasu Sasaki ,  Hideo Arimoto

    IPC分类号： H01S3/10 ,  H01S3/13

    CPC分类号： H01S5/141 ,  H01S5/02284 ,  H01S5/0427 ,  H01S5/0625 ,  H01S5/0687

    摘要： A laser device capable of preventing deterioration of a light signal and a controlling method therefor are provided. A wavelength tunable laser module provided with a resonator including the wavelength tunable filter and a semiconductor light amplifier having a phase adjustment region and a light amplifying region, in which a wavelength margin between a peak transmission wavelength of a wavelength tunable filter and a mode hop occurring wavelength on a short wave side is smaller than that on a long wave side includes: a wavelength tunable laser module controller including an optical output sampling portion for detecting light intensity of light emitted from the resonator, a dither signal source for generating a dither signal for varying a phase adjustment signal to be applied to the phase adjustment region so that the detected light intensity becomes the maximum, and an FM signal source for generating an FM signal for oscillating the phase adjustment signal to be applied to the phase adjustment region with a period shorter than a variation period of the dither signal. The optical output sampling portion detects the light intensity in synchronization with oscillation of the phase adjustment signal by the FM signal.

    摘要翻译： 提供一种能够防止光信号劣化的激光装置及其控制方法。 一种波长可调激光模块，其具有包括波长可调滤波器的谐振器和具有相位调整区域和光放大区域的半导体光放大器，其中波长可调滤波器的峰值传输波长与发生跳跃的峰值波长之间 短波侧的波长小于长波侧的波长包括：波长可调激光器模块控制器，包括用于检测从谐振器发射的光的光强度的光输出采样部分，用于产生用于产生抖动信号的抖动信号源 改变要施加到相位调整区域的相位调整信号，使得检测到的光强度变得最大;以及FM信号源，用于产生用于使相位调整信号振荡的相关调整信号的FM信号，该相位调整信号以周期 短于抖动信号的变化周期。 光输出采样部分通过FM信号与相位调整信号的振荡同步地检测光强度。

    Optical module
    4.
    发明申请
    Optical module 有权

    公开(公告)号：US20060056780A1

    公开(公告)日：2006-03-16

    申请号：US11195663

    申请日：2005-08-03

    申请人： Toshiaki Takai ,  Kenji Yoshimoto ,  Hiroyasu Sasaki ,  Masanobu Okayasu ,  Naoki Matsushima

    发明人： Toshiaki Takai ,  Kenji Yoshimoto ,  Hiroyasu Sasaki ,  Masanobu Okayasu ,  Naoki Matsushima

    IPC分类号： G02B6/36

    CPC分类号： G02B6/4201 ,  G02B6/4206 ,  G02B6/4267 ,  G02B6/4268 ,  G02B6/4271

    摘要： To provide a small-sized and reliable optical module in which a light emitting element and an optical function element respectively remarkably different in a coefficient of thermal expansion are mounted in the same casing, in the invention, the optical function element is mounted on the casing made of first material substantially equal in a coefficient of thermal expansion to the optical function element, a light emitting element unit including the light emitting element (for example, a thermoelectric module over which the light emitting element is mounted) is mounted on a member (base material) made of second material different from the first material and matched with the light emitting element unit in a coefficient of thermal expansion, and the member is, for example, embedded in the bottom of the casing.

    Optical module
    5.
    发明授权
    Optical module 有权
    光模块

    公开(公告)号：US07520683B2

    公开(公告)日：2009-04-21

    申请号：US11195663

    申请日：2005-08-03

    申请人： Toshiaki Takai ,  Kenji Yoshimoto ,  Hiroyasu Sasaki ,  Masanobu Okayasu ,  Naoki Matsushima

    发明人： Toshiaki Takai ,  Kenji Yoshimoto ,  Hiroyasu Sasaki ,  Masanobu Okayasu ,  Naoki Matsushima

    IPC分类号： G02B6/36 ,  H04B10/06

    CPC分类号： G02B6/4201 ,  G02B6/4206 ,  G02B6/4267 ,  G02B6/4268 ,  G02B6/4271

    摘要： To provide a small-sized and reliable optical module in which a light emitting element and an optical function element respectively remarkably different in a coefficient of thermal expansion are mounted in the same casing, in the invention, the optical function element is mounted on the casing made of first material substantially equal in a coefficient of thermal expansion to the optical function element, a light emitting element unit including the light emitting element (for example, a thermoelectric module over which the light emitting element is mounted) is mounted on a member (base material) made of second material different from the first material and matched with the light emitting element unit in a coefficient of thermal expansion, and the member is, for example, embedded in the bottom of the casing.

    摘要翻译： 为了提供一种小型可靠的光学模块，其中在同一壳体中安装有分别显着不同的热膨胀系数的发光元件和光学功能元件，在本发明中，光学功能元件安装在壳体 由与光学功能元件的热膨胀系数基本相等的第一材料制成，包括发光元件（例如，安装有发光元件的热电模块）的发光元件单元安装在构件上 基材）由与第一材料不同的第二材料制成，并且以热膨胀系数与发光元件单元匹配，并且该构件例如嵌入壳体的底部。

    Optical module
    6.
    发明授权
    Optical module 失效
    光模块

    公开(公告)号：US07038866B2

    公开(公告)日：2006-05-02

    申请号：US11127179

    申请日：2005-05-12

    申请人： Kenji Yoshimoto ,  Hiroyasu Sasaki ,  Masanobu Okayasu ,  Toshiaki Takai ,  Naoki Matsushima

    发明人： Kenji Yoshimoto ,  Hiroyasu Sasaki ,  Masanobu Okayasu ,  Toshiaki Takai ,  Naoki Matsushima

    IPC分类号： G02B7/02

    CPC分类号： G02B6/4204 ,  G02B7/008

    摘要： The present invention provides a compact, highly reliable optical module in which a light-emitting element and optical modulator element that differ from each other in thermal expansion coefficient are mounted in one casing. In the optical module having a differential thermal expansion coefficient less than 5×10−6 [1/K] between the light-emitting element and the casing, and a differential thermal expansion coefficient of at least 5×10−6 [1/K] between the optical modulator element and the casing, a section at which the optical modulator element and the casing are fixed is equal to or less than 10 mm wide in the direction of an optical axis.

    摘要翻译： 本发明提供一种紧凑，高度可靠的光学模块，其中将热膨胀系数彼此不同的发光元件和光调制元件安装在一个壳体中。 在发光元件和外壳之间的差热膨胀系数小于5×10 -6 [1 / K]的光学模块中，并且差分热膨胀系数为至少5×10 -6 光调制元件与外壳之间的-6 / 1 / K，光调制元件和外壳固定的部分在光轴方向宽度为10mm以下。

    Optical module
    7.
    发明申请
    Optical module 失效
    光模块

    公开(公告)号：US20050275958A1

    公开(公告)日：2005-12-15

    申请号：US11127179

    申请日：2005-05-12

    申请人： Kenji Yoshimoto ,  Hiroyasu Sasaki ,  Masanobu Okayasu ,  Toshiaki Takai ,  Naoki Matsushima

    发明人： Kenji Yoshimoto ,  Hiroyasu Sasaki ,  Masanobu Okayasu ,  Toshiaki Takai ,  Naoki Matsushima

    IPC分类号： G02F1/03 ,  G02B3/00 ,  G02B6/42 ,  G02B7/00 ,  G02B7/02 ,  G02B9/00 ,  H01S5/022

    CPC分类号： G02B6/4204 ,  G02B7/008

    摘要： The present invention provides a compact, highly reliable optical module in which a light-emitting element and optical modulator element that differ from each other in thermal expansion coefficient are mounted in one casing. In the optical module having a differential thermal expansion coefficient less than 5×10−6 [1/K] between the light-emitting element and the casing, and a differential thermal expansion coefficient of at least 5×10−6 [1/K] between the optical modulator element and the casing, a section at which the optical modulator element and the casing are fixed is equal to or less than 10 mm wide in the direction of an optical axis.

    摘要翻译： 本发明提供一种紧凑，高度可靠的光学模块，其中将热膨胀系数彼此不同的发光元件和光调制元件安装在一个壳体中。 在发光元件和外壳之间的差热膨胀系数小于5×10 -6 [1 / K]的光学模块中，并且差分热膨胀系数为至少5×10 -6 光调制元件与外壳之间的-6 / 1 / K，光调制元件和外壳固定的部分在光轴方向宽度为10mm以下。