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    • 3. 发明申请
    • パルスレーザ装置
    • 脉冲激光器件
    • WO2016199903A1
    • 2016-12-15
    • PCT/JP2016/067402
    • 2016-06-10
    • 古河電気工業株式会社
    • 大谷 栄介
    • H01S5/068G02B6/02H01S3/067H01S3/10H01S5/022H01S5/026H01S5/50
    • G02B6/02052G02B6/02H01S3/067H01S3/06766H01S3/0677H01S3/06783H01S3/10H01S5/022H01S5/026H01S5/068H01S5/50
    • パルスレーザ装置は、単一波長のレーザ光を出力する半導体レーザ素子と、前記半導体レーザ素子から出力されたレーザ光を受け付けて該レーザ光を増幅して出力する半導体光増幅器と、前記半導体光増幅器にパルス変調された駆動電流を供給する半導体光増幅器駆動部と、を備える。好ましくは、前記半導体レーザ素子にパルス変調された半導体レーザ素子駆動電流を供給する半導体レーザ素子駆動部と、前記半導体光増幅器駆動部と、を有する制御部を備え、前記制御部は、前記半導体レーザ素子駆動電流のパルス変調と前記半導体光増幅器駆動電流のパルス変調とを同期させる。
    • 该脉冲激光装置设置有:输出单波长激光束的半导体激光元件; 半导体光放大器,其接收从半导体激光元件输出的激光束,并放大并输出激光束; 以及向半导体光放大器供给脉冲调制驱动电流的半导体光放大器驱动单元。 优选地,脉冲激光装置具有控制单元,该控制单元具有向半导体激光元件供给脉冲调制半导体激光元件驱动电流的半导体激光元件驱动单元,并且还具有半导体光放大器驱动单元,所述半导体激光元件驱动单元 控制单元使半导体激光元件驱动电流的脉冲调制和半导体光放大器的脉冲调制相互驱动电流相互同步。
    • 8. 发明申请
    • TEMPERATURE-STABILISED SEMICONDUCTOR LASER
    • 下稳定的半导体激光器
    • WO03061087A2
    • 2003-07-24
    • PCT/DE0300155
    • 2003-01-20
    • UNIV WUERZBURG J MAXIMILIANSREITHMAIER JOHANN PETERKLOPF FRANK
    • REITHMAIER JOHANN PETERKLOPF FRANK
    • H01S5/068H01S5/12H01S5/125H01S5/34
    • B82Y20/00H01S5/068H01S5/12H01S5/125H01S5/34H01S5/341H01S5/3412H01S2301/04
    • The invention relates to a semiconductor laser, which exhibits a flat amplification curve (41) in an energy range around the emission wavelength. When the gradient dgmat/dE (42) of the amplification curve gmat(E) (41) is small (one to two orders of magnitude smaller than in conventional semiconductor materials), the semiconductor laser exhibits a particularly low temperature drift d lambda /dT (43). A flat amplification curve (41) of this type can be achieved by a quantum dot laser (42) with two energy levels, which are separated by a favourable energy band gap and have a favourable amplification ratio in relation to one another. By guiding the process appropriately during the formation of the quantum dot layer, the individual energy levels are spread in such a way that a total amplification curve gmat(E) (41) with a small gradient dgmat/dE (42) is obtained. A temperature-stabilised semiconductor laser of this type can also be achieved by a quantum wire laser.
    • 有人提出了一个平坦的增益曲线41次的发光波长具有能量的半导体激光器 如果增益曲线42 dgmatdE的斜率gmate 41小一个数量级到比常规的半导体激光器的材料小两个数量级,这导致了特别低的温度漂移dχ半导体激光器的/ DT 43。 为了实现这样的平坦的增益曲线41,量子点激光器42,提出了一种具有两个能级;这些都是彼此有利于节能的距离和具有有利的放大比到彼此。 通过在量子点层的形成适当的过程控制,各个能级变宽,使得总增益曲线41 gmate dgmat低斜率/ DE 42分的结果。 这样的温度稳定的半导体激光器可以通过量子线激光器来实现。
    • 9. 发明申请
    • LASER OPTICS INTEGRATED CONTROL SYSTEM AND METHOD OF OPERATION
    • 激光光学集成控制系统和操作方法
    • WO2003058827A2
    • 2003-07-17
    • PCT/US2002/040940
    • 2002-12-21
    • CEYX TECHNOLOGIES, INC.SANCHEZ OLEA, Jorge
    • SANCHEZ OLEA, Jorge
    • H04B
    • H04B10/572H01S5/0612H01S5/068H01S5/06804H01S5/0683H01S5/0687H01S5/423H04B10/504H04B10/564
    • A controller (320) for controlling various operational parameters of the Laser Module (303). The modulation drive signal (300) causes the circuits in the driver (301) to send a signal to the output (302) so that the laser can send an optical power output (304) proportional to the drive signal (300). The control methods in Laser Controller IC (320) consist of control algorithms embedded in firmware. The Laser Controller IC (320) includes support circuits for control of a laser. Some of the distinguishing features in the present invention are 1) feedback information from the sensors is obtained in a synchronous manner as a snapshot of the laser performance, and 2) algorithms handle the entire set of controls in firmware. The algorithm feature allows for advanced servo controls, which precisely stabilize the laser, can accommodate adaptive controls, and can be leveraged from one laser transmitter design to another.
    • 控制器(320),用于控制激光模块(303)的各种操作参数。 调制驱动信号(300)使驱动器(301)中的电路向输出(302)发送信号,使得激光器可以发送与驱动信号(300)成比例的光功率输出(304)。 激光控制器IC(320)中的控制方法由嵌入在固件中的控制算法组成。 激光控制器IC(320)包括用于控制激光器的支持电路。 本发明的一些区别特征是1)以同步方式获得来自传感器的反馈信息作为激光器性能的快照,以及2)算法处理固件中的整组控制。 算法功能允许先进的伺服控制,精确地稳定激光,可以适应自适应控制,并且可以从一个激光发射器设计到另一个激光发射器设计中使用。
    • 10. 发明申请
    • OPTICAL TRANSMISSION DEVICE AND METHOD FOR DRIVING LASER DIODE
    • 光传输装置及驱动激光二极管的方法
    • WO99014832A1
    • 1999-03-25
    • PCT/JP1997/003260
    • 1997-09-16
    • H01S5/068H01S5/0683H01S3/133
    • H01S5/068H01S5/0683
    • An optical transmission device which fetches drive control data corresponding to a temperature detected by a temperature detector (112) from a memory means (173), and controls a drive current to be fed to a laser diode (100) on the basis of the drive control data. The optical transmission device measures a drive current actually fed to the laser diode, the light emitting intensity of which is made constant by automatic optical output control circuits (115, 113), and updates the drive control data relating to the temperature on the memory means, when a difference between the measured drive current and a drive current determined by the drive control data according to the detected temperature exceeds an allowable range, so that the difference thus obtained may be designated as the individual increments of a bias current and a modulated current. For deciding the deterioration of the laser diode, the progress of the laser diode deterioration is decided on the basis of the difference between the drive current designated by the drive control data according to a newly measured temperature, and the actual drive current produced by an automatic optical output control. Thus, the drive control data corresponding to an ambient temperature can be updated by reliably discriminating whether the increase in the drive current by the automatic optical output control is caused by the deterioration of the laser diode or by the change in the temperature.
    • 一种光传输装置,其从存储装置(173)取出对应于由温度检测器(112)检测到的温度的驱动控制数据,并且基于驱动来控制要馈送到激光二极管(100)的驱动电流 控制数据。 光传输装置测量实际馈送到激光二极管的驱动电流,其光发射强度由自动光输出控制电路(115,113)恒定,并且更新与存储装置上的温度有关的驱动控制数据 当测量的驱动电流与根据检测到的温度的驱动控制数据确定的驱动电流之间的差异超过容许范围时,由此获得的差可以被指定为偏置电流和调制电流的各个增量 。 为了决定激光二极管的劣化,激光二极管劣化的进行基于由根据新测量的温度的驱动控制数据指定的驱动电流与由自动测量产生的实际驱动电流之间的差异来确定 光输出控制。 因此,可以通过可靠地判断由自动光输出控制的驱动电流的增加是由激光二极管的劣化还是由于温度的变化而引起的,来更新对应于环境温度的驱动控制数据。