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    Laser Apparatus with Dispersion Control
    1.
    发明申请
    Laser Apparatus with Dispersion Control 审中-公开

    公开(公告)号：US20170110846A1

    公开(公告)日：2017-04-20

    申请号：US15295414

    申请日：2016-10-17

    Applicant: TOPTICA Photonics AG

    Inventor： Alexander Sell

    IPC: H01S3/08 ,  H01S3/109 ,  H01S3/081 ,  H01S3/067 ,  H01S3/16

    CPC classification number: H01S3/08059 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0092 ,  H01S3/067 ,  H01S3/06708 ,  H01S3/0809 ,  H01S3/0811 ,  H01S3/0815 ,  H01S3/109 ,  H01S3/1608

    Abstract: The invention relates to a laser apparatus comprising a laser radiation source which generates pulsed laser radiation, wherein the laser radiation has spectral components in at least two wavelength ranges that differ from one another—a first wavelength range (W1) and a second wavelength range (W2)—, and comprising a dispersion control element comprising at least one dielectric multilayer mirror (MCM), wherein the laser radiation is reflected one or more times at the multilayer mirror (MCM). It is an object of the invention to provide a laser apparatus which is improved over the prior art. In particular, the setup thereof should be less complex, require less adjustment outlay and—in particular—be less sensitive to external influences. The invention achieves this object in that the multilayer mirror (MCM) is reflective in the two wavelength ranges (W1, W2), the reflection of the spectral component in the second wavelength range (W2) having a time delay in relation to the reflection of the spectral component in the first wavelength range (W1) such that the spectral components of the laser radiation reflected at the multilayer mirror (MCM) in the two wavelength ranges (W1, W2) coincide in time in an interaction centre of the laser apparatus. Moreover, the invention relates to a dielectric multilayer mirror and a method for generating laser radiation.

    Optical Scanning
    3.
    发明申请
    Optical Scanning 有权
    光学扫描

    公开(公告)号：US20150357788A1

    公开(公告)日：2015-12-10

    申请号：US14729529

    申请日：2015-06-03

    Applicant: TOPTICA Photonics AG

    Inventor： Thomas A. Puppe ,  Nico Vieweg ,  Armin Zach ,  Alexander Sell

    IPC: H01S3/11 ,  H01S3/067 ,  H01S3/23

    CPC classification number: H01S3/1106 ,  G01J3/00 ,  G01J3/10 ,  H01S3/067 ,  H01S3/06712 ,  H01S3/08054 ,  H01S3/082 ,  H01S3/10046 ,  H01S3/107 ,  H01S3/1118 ,  H01S3/1304 ,  H01S3/1307 ,  H01S3/136 ,  H01S3/2383

    Abstract: The invention relates to a device for generating temporally distant light pulses, said device comprising a first light source (51) generating a first sequence (I) of light pulses at a first repetition rate, and a second light source (52) generating a second sequence (II) of light pulses at a second repetition rate. It is the object of the present invention to provide an improved device for generating temporally distant light pulses. This object is inventively achieved by providing for at least one actuator element which influences the first and/or the second repetition rate, and a control element (61) which charges the actuator element with a periodical modulation signal (62) for periodical variation of the first and/or second repetition rate. A control circuit is provided for, comprising a phase detector (57), which derives a control signal (58) from the first light pulse sequence (I) and the second light pulse sequence (II), a corrective element (59, 60) which derives a control deviation signal (63) from the control signal (58) and the modulation signal (62), a control element (64), at the input of which the control deviation signal (63) is pending, and a superposition element (66) which forms an actuator signal (67) from the modulation signal (62) and the output signal (65) of the control element (64), and which charges the actuator element with the actuator signal (67). Moreover, the invention relates to a method for generating temporally distant light pulses.

    Abstract translation: 本发明涉及一种用于产生时间上远的光脉冲的装置，所述装置包括以第一重复率产生光脉冲的第一序列（I）的第一光源（51）和产生第二重复频率的第二光源（52） 光脉冲的序列（II）以第二重复率。 本发明的目的是提供一种用于产生时间上远的光脉冲的改进的装置。 该目的通过提供影响第一和/或第二重复率的至少一个致动器元件和控制元件（61）来实现，该控制元件（61）用周期性调制信号（62）对致动器元件进行充电，用于周期性变化 第一和/或第二重复率。 提供了一种控制电路，包括相位检测器（57），其从第一光脉冲序列（I）和第二光脉冲序列（II）导出控制信号（58），校正元件（59,60） 其从所述控制信号（58）和所述调制信号（62）中导出控制偏差信号（63），控制元件（64）在控制偏差信号（63）待处理的输入端处，以及叠加元件 （66），其从所述调制信号（62）和所述控制元件（64）的输出信号（65）形成致动器信号（67），并且利用所述致动器信号（67）对所述致动器元件充电。 此外，本发明涉及一种用于产生时间上远的光脉冲的方法。

    Laser apparatus with dispersion control
    4.
    发明授权
    Laser apparatus with dispersion control 有权

    公开(公告)号：US10361530B2

    公开(公告)日：2019-07-23

    申请号：US15295414

    申请日：2016-10-17

    Applicant: TOPTICA Photonics AG

    Inventor： Alexander Sell

    IPC: H01S3/08 ,  H01S3/109 ,  H01S3/081 ,  H01S3/067 ,  H01S3/16

    Abstract: A laser apparatus including a pulsed laser radiation source is disclosed, wherein the laser radiation has spectral components in at least two wavelength ranges W1, W2 that differ from one another, and a dispersion control element including at least one dielectric multilayer mirror, wherein the laser radiation is reflected one or more times at the multilayer mirror. The multilayer mirror is reflective in the two wavelength ranges W1, W2, and the reflection of the spectral component in the second wavelength range W2 has a time delay relative to the reflection of the spectral component in the first wavelength range W1 such that the spectral components of the laser radiation reflected at the multilayer mirror in the two wavelength ranges W1, W2 coincide in time in an interaction center of the laser apparatus, and a nonlinear optical element is situated in the interaction center.

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