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    • 1. 发明申请
    • CONTROL DEVICE, CONTROL METHOD, AND PROGRAM
    • 控制装置,控制方法和程序
    • WO2015097972A1
    • 2015-07-02
    • PCT/JP2014/005726
    • 2014-11-14
    • SONY CORPORATION
    • FUJITA, GoroTANAKA, KenjiMARUYAMA, TsutomuURAKAWA, Yoshiyuki
    • H01S5/00G02F1/39H01S5/065H01S5/50H01S5/062H01S5/14
    • H01S5/0657G02F2201/17H01S5/0064H01S5/0092H01S5/06213H01S5/06216H01S5/141H01S5/50
    • There is provided a control device including a light source control section (301) to cause laser light emitted from a laser light source (10) to be emitted as pulse laser light by intermittent drive, a drive section (311) to move at least one of reflection sections (207) of a resonator (21) in an optical axis direction, and a servocontrol section (313) to servocontrol a light path length of the resonator (21) by causing the drive section (311) to move the at least one of the reflection sections (207) in such a manner to meet a resonance condition, on the basis of an error signal that indicates a difference between the light path length of the resonator according to a synchronously detected reflected light from the resonator and a light path length that meets the resonance condition of the pulse laser light that enters the resonator. The system may comprise an external cavity laser diode (10) mode-locked by an electric modulation signal (301), its output is amplified by a SOA (131) being driven by a pulsed signal (40) in synchronisation (302) with the ECLD (10) resulting in pulse bursts. The pulse bursts may be used to synchronously pump an OPO (20) having a non-linear optical crystal (213). The OPO has a servo loop for length stabilisation based on the difference of the modulation signal of the laser (301) and the OPO output frequency (307). In order to prevent instabilities in the OPO output, the pulse burst frequency is larger than the cut-off frequency of the servo loop.
    • 提供了一种控制装置,包括:光源控制部(301),用于使从激光光源(10)发射的激光通过间歇驱动作为脉冲激光发射;驱动部(311),用于移动至少一个 (21)的反射部(207)和伺服控制部(313),通过使驱动部(311)至少移动至少一个来驱动谐振器(21)的光路长度 基于指示根据来自谐振器的同步检测到的反射光的谐振器的光路长度与光的距离的误差信号的误差信号,以这种方式满足谐振条件的反射部分(207)中的一个 满足进入谐振器的脉冲激光的谐振条件的路径长度。 该系统可以包括通过电调制信号(301)锁模的外部腔激光二极管(10),其输出由同步(302)中的脉冲信号(40)驱动的SOA(131)放大,其中 ECLD(10)导致脉冲突发。 脉冲串可用于同步泵浦具有非线性光学晶体(213)的OPO(20)。 基于激光器(301)的调制信号和OPO输出频率(307)的差异,OPO具有用于长度稳定的伺服环路。 为了防止OPO输出不稳定,脉冲脉冲串频率大于伺服环路的截止频率。
    • 4. 发明申请
    • TUNABLE LASER FOR FLUORESCENCE MICROSCOPY
    • 荧光显微镜的荧光激光
    • WO2014076445A1
    • 2014-05-22
    • PCT/GB2013/000487
    • 2013-11-14
    • THE UNIVERSITY OF DUNDEE
    • FEDOROVA, KseniaRAFAILOV, EdikSOLOLOVSKII, Grigorili
    • H01S5/00H01S5/14G01N21/64H01S5/34H01S5/40H01S5/10
    • H01S5/0092B82Y20/00G01N21/47G01N21/6458H01S5/005H01S5/0064H01S5/1092H01S5/142H01S5/3412H01S5/4087
    • A compact broadly tunable visible spectrum laser source which can provide a continuous wave (CW) output or a pulsed output with a picosecond pulse length for use in fluorescence microscopy. The laser source has a quantum-dot external-cavity diode laser optically coupled with a periodically poled nonlinear crystal waveguide in which, two or more tunable wavelengths may be generated substantially simultaneously in the visible spectral range. By using an one or more additional diffraction grating and a beam splitter in the external cavity setup to provide the coverage of a broad visible spectral range. Multi-wavelength emission is enabled using a coupled resonator with a beam splitter (6) and at least two diffraction gratings (3,5) and a Quantum-Dot active media (9) to realize the external cavity laser diode. The broad tunable emission is frequency- converted into the visible with a periodically poled waveguide SHG PPKTP (19).
    • 可以提供连续波(CW)输出的紧凑型宽可调谐可见光谱激光源或用于荧光显微镜的皮秒脉冲长度的脉冲输出。 激光源具有与周期性极化的非线性晶体波导光学耦合的量子点外腔二极管激光器,其中可在可见光谱范围内基本上同时产生两个或多个可调谐波长。 通过在外部空腔设置中使用一个或多个附加的衍射光栅和分束器来提供宽的可见光谱范围的覆盖。 使用具有分束器(6)和至少两个衍射光栅(3,5)和量子点有源介质(9)的耦合谐振器来实现多波长发射,以实现外部腔激光二极管。 使用周期性极化的波导SHG PPKTP(19)将宽可调谐发射频率转换成可见光。
    • 8. 发明申请
    • LASER SYSTEM WITH WAVELENGTH CONVERTER
    • 具有波长转换器的激光系统
    • WO2012034563A1
    • 2012-03-22
    • PCT/DK2011/050344
    • 2011-09-14
    • DANMARKS TEKNISKE UNIVERSITETJENSEN, Ole BjarlinANDERSEN, Peter EskilPETERSEN, Paul Michael
    • JENSEN, Ole BjarlinANDERSEN, Peter EskilPETERSEN, Paul Michael
    • G02F1/35H01S3/0941H01S5/068
    • H01S5/06817H01S3/09415H01S5/0092H01S5/02469H01S5/0265H01S5/0683H01S5/1014H01S5/4012H01S2301/02
    • The present invention relates to an apparatus comprising a diode laser (10) providing radiation in a first wavelength interval, a radiation conversion unit (12) having an input and an output, the radiation converter configured to receive the radiation in the first wavelength interval from the diode laser at the input, the radiation conversion unit configured to convert the radiation in the first wavelength interval to radiation in a second wavelength interval and the output configured to output the converted radiation, the second wavelength interval having one end point outside the first wavelength interval. Further, the invention relates to a method of optically pumping a target laser (14) in a laser system, the laser system comprising a laser source providing radiation at a first frequency, the laser source being optically connected to an input of a frequency converter, the frequency converter configured to convert the radiation at the first frequency to a second, different frequency, the target laser arranged in optical communication with an output of the frequency converter, the method comprising the steps of emitting radiation from the laser source, receiving the radiation at the frequency converter, converting the radiation from the first frequency to the second frequency in the frequency converter, and providing the radiation at the second frequency at the target laser so that the target laser is optically pumped.
    • 本发明涉及一种包括提供第一波长间隔的辐射的二极管激光器(10)的设备,具有输入和输出的辐射转换单元(12),该辐射转换器被配置为接收第一波长间隔中的辐射 在输入处的二极管激光器,所述辐射转换单元被配置为将第一波长间隔中的辐射转换成第二波长间隔的辐射,并且被配置为输出转换的辐射的输出,所述第二波长间隔具有在第一波长之外的一个端点 间隔。 此外,本发明涉及一种在激光系统中光学泵浦目标激光器(14)的方法,所述激光系统包括提供第一频率的辐射的激光源,所述激光源光学连接到变频器的输入端, 所述变频器被配置为将所述第一频率的辐射转换为第二不同频率,所述目标激光器被布置为与所述变频器的输出光学通信,所述方法包括以下步骤:从所述激光源发射辐射,接收所述辐射 在频率转换器中,将频率转换器中的第一频率的辐射转换为第二频率,并且在目标激光器处以第二频率提供辐射,使得目标激光器被光泵浦。
    • 10. 发明申请
    • レーザシステム
    • 激光系统
    • WO2011114907A1
    • 2011-09-22
    • PCT/JP2011/055016
    • 2011-03-04
    • 株式会社QDレーザ横山吉隆
    • 横山吉隆
    • G02F1/37H01S5/062
    • H01S5/06804H01S5/0092H01S5/0265H01S5/06258H01S5/06832H01S5/0687
    •  本発明は、レーザ光24を発振するDFBレーザ12と、DFBレーザ12の温度を調節するヒータ14と、レーザ光24をレーザ光24の高調波光34に変換する高調波生成素子18と、を有するレーザモジュール10と、レーザ光24の波長を変調させて、高調波光34の強度から変調に用いた変調信号に同期した検出信号を検出し、検出信号の振幅が小さくなるようにヒータ14に注入するヒータ電流28の大きさを制御する制御部40と、を具備するレーザシステム100である。
    • 公开了一种配备有激光模块(10)的激光系统(100),其具有:用于振荡激光束(24)的DFB激光器(12),用于调节DFB激光器(12)的温度的加热器(14) 以及用于将激光束(24)转换成激光束(24)的谐波束(34)的谐波产生元件(18)。 激光系统(100)还配备有调制激光束(24)的波长的控制单元(40),根据谐波束(34)的强度检测与调制中使用的调制信号同步的检测信号 ),并且控制注入到加热器(14)中的加热器电流(28)的尺寸,以便降低检测信号的幅度。