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    Optical scanning
    41.
    发明授权
    Optical scanning 有权

    公开(公告)号：US09711935B2

    公开(公告)日：2017-07-18

    申请号：US15237379

    申请日：2016-08-15

    Applicant: TOPTICA Photonics AG

    Inventor： Christian Rausch ,  Andreas Brodschelm ,  Nico Vieweg ,  Thomas A. Puppe

    IPC: H01S3/10 ,  H01S3/13 ,  H01S3/09 ,  H01S3/105 ,  H01S3/23 ,  H01S3/067 ,  H01S3/136 ,  H01S3/11

    CPC classification number: H01S3/1305 ,  H01S3/067 ,  H01S3/09 ,  H01S3/10046 ,  H01S3/10053 ,  H01S3/1053 ,  H01S3/1112 ,  H01S3/1118 ,  H01S3/1121 ,  H01S3/1307 ,  H01S3/136 ,  H01S3/1394 ,  H01S3/2383

    Abstract: The invention relates to an apparatus for generating temporally spaced apart light pulses, comprising a first laser (11) which generates a first sequence (I) of light pulses at a first repetition rate, a second laser (12) which generates a second sequence (II) of light pulses at a second repetition rate, and at least one actuating member which influences the first repetition rate and/or the second repetition rate. It is an object of the invention to provide an apparatus for generating temporally spaced apart light pulses which is improved in relation to the prior art. This object is achieved by the invention by a control element (23) which applies a periodic modulation signal (24) to the actuating member for periodic variation of the first repetition rate and/or the second repetition rate, wherein the actuating member comprises a mechanical oscillator excited by the modulation signal (24), the deflection of said oscillator causing an adjustment in the resonator length of the first laser (11) and/or second laser (12), wherein the mechanical oscillator oscillates in resonant fashion at the frequency of the modulation signal (24). In accordance with the invention, an actuator (e.g. a piezo-actuator) which adjusts the resonator length of the laser is operated in resonant fashion. As a result, a large maximum time offset of the light-pulse sequences (I, II) with, at the same time, a high scanning speed is rendered possible. Moreover, the invention relates to a method for generating temporally spaced apart light pulses.

    Mode-locked optically pumped semiconductor laser
    46.
    发明授权
    Mode-locked optically pumped semiconductor laser 有权
    锁模光泵浦半导体激光器

    公开(公告)号：US08774238B2

    公开(公告)日：2014-07-08

    申请号：US13174330

    申请日：2011-06-30

    Applicant: Ian MacGillivray ,  Andrea Caprara ,  Sergei Govorkov

    Inventor： Ian MacGillivray ,  Andrea Caprara ,  Sergei Govorkov

    IPC: H01S3/081 ,  H01S5/065

    CPC classification number: H01S5/0657 ,  H01S3/07 ,  H01S3/0813 ,  H01S3/094026 ,  H01S3/1118 ,  H01S3/1121 ,  H01S3/1306 ,  H01S3/1307 ,  H01S5/041 ,  H01S5/14 ,  H01S5/183

    Abstract: A laser includes an optically pumped semiconductor OPS gain-structure. The apparatus has a laser-resonator which includes a mode-locking device for causing the laser to deliver mode-locked pulses. The resonator has a total length selected such that the mode-locked pulses are delivered at a pulse repetition frequency of about 100 MHz. An optical arrangement within the resonator provides that radiation circulating in the resonator makes a plurality of incidences on the OPS gain-structure with a time less than the excited-state lifetime of the gain-structure between successive incidences.

    Abstract translation: 激光器包括光泵浦半导体OPS增益结构。 该装置具有激光谐振器，该激光谐振器包括用于使激光器传递锁模脉冲的模式锁定装置。 共振器具有选择的总长度，使得锁模脉冲以约100MHz的脉冲重复频率传送。 谐振器内的光学布置使得在谐振器中循环的辐射在OPS增益结构上产生多个发生时间，其时间小于连续发生之间的增益结构的激发态寿命。

    Laser oscillation apparatus
    47.
    发明授权
    Laser oscillation apparatus 有权
    激光振荡装置

    公开(公告)号：US08675708B2

    公开(公告)日：2014-03-18

    申请号：US13813810

    申请日：2011-08-03

    Applicant: Yosuke Honda ,  Junji Urakawa

    Inventor： Yosuke Honda ,  Junji Urakawa

    IPC: H01S3/067 ,  H01S3/13 ,  H01S3/23 ,  H05G2/00

    CPC classification number: H01S3/06791 ,  G02F1/21 ,  G02F2201/17 ,  H01S3/06712 ,  H01S3/07 ,  H01S3/082 ,  H01S3/094007 ,  H01S3/10007 ,  H01S3/105 ,  H01S3/108 ,  H01S3/1109 ,  H01S3/1121 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/1618 ,  H01S3/2308 ,  H05G2/00

    Abstract: Provided is a laser oscillation apparatus capable of stabilizing resonance even when finesse of an optical resonator is increased and generating stronger laser light than that of a traditional apparatus by accumulating laser light in the optical resonator. The laser oscillation apparatus includes a laser light source which generates laser light for excitation, a fiber amplifier which generates laser light with a desired wavelength when the laser light generated at the laser light source for excitation is supplied, an optical resonator, an optical isolator which is interposed between the optical resonator and the fiber amplifier and which guides the laser light from the fiber amplifier to one side of the optical resonator while blocking laser light in the opposite direction, a circulation optical path which accelerates resonance as introducing laser light emitted from the other side of the optical resonator and returning the laser light to the optical resonator via the fiber amplifier and the optical isolator, and a modulator which performs amplitude modulation on the laser light in the circulation optical path.

    Abstract translation: 提供了即使在光谐振器的精细度增加并且通过在光谐振器中积聚激光而产生比传统装置的激光更强的激光的情况下也能够稳定谐振的激光振荡装置。 激光振荡装置包括激光产生激光的激光光源，在供给激光激光光源时产生的激光产生期望波长的激光的光纤放大器，光谐振器，光隔离器 插入在光谐振器和光纤放大器之间，并且将来自光纤放大器的激光引导到光学谐振器的一侧，同时沿相反方向阻挡激光，循环光路加速谐振，从而引入从 光谐振器的另一侧，并且通过光纤放大器和光隔离器将激光返回到光谐振器，以及对循环光路中的激光进行调幅的调制器。

    Systems and methods having a frequency comb
    48.
    发明授权
    Systems and methods having a frequency comb 有权
    具有频率梳的系统和方法

    公开(公告)号：US08488639B1

    公开(公告)日：2013-07-16

    申请号：US12699566

    申请日：2010-02-03

    Applicant: Jean-Claude Diels ,  Ladan Arissian

    Inventor： Jean-Claude Diels ,  Ladan Arissian

    IPC: H01S3/10

    CPC classification number: H01S3/1112 ,  H01S3/083 ,  H01S3/10092 ,  H01S3/1121 ,  H01S3/1392 ,  H01S3/1398 ,  H01S3/2383

    Abstract: Apparatus, systems, and methods having a frequency comb of large spacing can be used in a variety of applications. In various embodiments, a frequency comb is generated from a slave laser by injecting an optical output from a drive laser into the slave laser. One or more parameters of the drive laser and/or the slave laser can be adjusted such that a frequency comb can be generated at a multiple of the repetition rate of the drive laser. Additional apparatus, systems, and methods are disclosed.

    Abstract translation: 具有大间距的频率梳的装置，系统和方法可用于各种应用中。 在各种实施例中，通过将来自驱动激光器的光输出注入到从激光器中，从从激光器产生频梳。 可以调节驱动激光器和/或从属激光器的一个或多个参数，使得可以以驱动激光器的重复频率的倍数产生频率梳。 公开了附加装置，系统和方法。

    Ultralow noise mode-locked laser and RF sinewave source
    49.
    发明授权
    Ultralow noise mode-locked laser and RF sinewave source 有权
    超低噪声锁模激光和RF正弦波源

    公开(公告)号：US07978740B1

    公开(公告)日：2011-07-12

    申请号：US11973366

    申请日：2007-10-05

    Applicant: Peter J. Delfyett ,  Sangyoun Gee ,  Myoun-Taek Choi

    Inventor： Peter J. Delfyett ,  Sangyoun Gee ,  Myoun-Taek Choi

    IPC: H01S3/13

    CPC classification number: H01S3/1109 ,  H01S3/06791 ,  H01S3/08036 ,  H01S3/107 ,  H01S3/1121 ,  H01S3/1305 ,  H01S3/136

    Abstract: Systems, devices and methods of generating both a precision electrical timing signal as well as a precision optical timing signal. A novel, modified opto-electronic loop oscillator is used to drive a harmonic mode-locked laser. A novel opto-electronic loop has a larger “Q” factor by increasing the electrical loop oscillating frequency ω0 by using a beat note created by the selection of two optical longitudinal modes from the mode-locked laser. The beat note is detected and divided down to drive a modulator that mode-locks the laser. The frequency division stage also reduces the noise.

    Abstract translation: 产生精密电定时信号以及精密光学定时信号的系统，装置和方法。 一种新颖的改进型光电环形振荡器用于驱动谐波锁模激光器。 通过使用通过从锁模激光器选择两个光学纵向模式产生的节拍音来增加电环振荡频率ω0，新颖的光电环路具有更大的“Q”因子。 拍摄音符被检测并分频以驱动模式锁定激光器的调制器。 分频级还可以降低噪音。

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