Laser Device Comprising Means for Controlling the Phase of a Large Number of Coherent Sources
    2.
    发明申请
    Laser Device Comprising Means for Controlling the Phase of a Large Number of Coherent Sources 有权
    激光装置包括用于控制大量相干源的相位的装置

    公开(公告)号:US20090316734A1

    公开(公告)日:2009-12-24

    申请号:US12487504

    申请日:2009-06-18

    CPC classification number: H01S3/06754 H01S3/10053 H01S3/2308 H01S3/2383

    Abstract: The invention relates to a laser device comprising a number of fibre amplifiers (3) delivering a number of optical waves, which is supplied by an oscillator (1) that delivers a signal wave, characterized in that said device comprises: a coherent source (4) emitting a coherent wave at a wavelength approximately equal to that of the signal wave and the propagation direction of which is inclined to the propagation direction of the optical waves output by the fibre amplifiers; means for making the coherent wave interfere with the optical waves output by the fibre amplifiers, and generating an interferogram consisting of an array of fringes; interferogram detection means (7), the relative positions of the fringes transcribing an inter-fibre phase law; a spatial phase modulator (2); and processing/display means (6) for processing the detected phase law and for displaying it on the spatial modulator, said spatial modulator being positioned so as to be able to be read by the signal wave and thus generate a phase-modulated signal wave selectively at each of the fibre amplifiers, compensating for the phase shifts induced by said fibre amplifiers.

    Abstract translation: 本发明涉及一种包括多个光纤放大器(3)的激光装置,该多个光纤放大器(3)由传送信号波的振荡器(1)提供,其特征在于所述装置包括:相干光源(4) )发射波长近似等于信号波的相干波,其传播方向与由光纤放大器输出的光波的传播方向倾斜; 用于使相干波干扰由光纤放大器输出的光波的装置,以及产生由条纹阵列组成的干涉图; 干涉图检测装置(7),条纹转录纤维间相位定律的相对位置; 空间相位调制器(2); 以及处理/显示装置(6),用于处理所检测的相位定律并将其显示在空间调制器上,所述空间调制器被定位成能够被信号波读取,从而选择性地产生相位调制的信号波 在每个光纤放大器中,补偿由所述光纤放大器引起的相移。

    Fiber-optic interferometric rotation speed sensor including a non-linear mirror
    3.
    发明授权
    Fiber-optic interferometric rotation speed sensor including a non-linear mirror 失效
    光纤干涉式转速传感器包括非线性反射镜

    公开(公告)号:US07489404B2

    公开(公告)日:2009-02-10

    申请号:US10573073

    申请日:2004-08-25

    CPC classification number: G01C19/72 G01J9/02

    Abstract: An fiber-optic interferometric rotation sensor device has a laser source combined with an optical fiber. These are configured to cause interference between a beam from the laser source and a beam coming from the optical fiber. The laser source includes an optical cavity having a gain lasing medium. The sensor device includes, along the path of the beam output by the laser cavity, a beam splitter device associated with a mirror, wherein the beam split off from the beam output by the laser cavity is sent into one of the ends of the optical fiber and directed from the other end toward the gain lasing medium to form a nonlinear mirror. The splitter device is followed by a detector.

    Abstract translation: 光纤干涉式旋转传感器装置具有与光纤组合的激光源。 这些被配置为引起来自激光源的光束和来自光纤的光束之间的干涉。 激光源包括具有增益激光介质的光腔。 传感器装置沿着由激光腔输出的光束的路径包括与反射镜相关联的分束器装置,其中从激光腔输出的光束分离的光束被发射到光纤的一端中 并且从另一端朝向增益激光介质引导以形成非线性反射镜。 分离器装置之后是检测器。

    Laser device comprising means for controlling the phase of a large number of coherent sources
    4.
    发明授权
    Laser device comprising means for controlling the phase of a large number of coherent sources 有权
    激光装置包括用于控制大量相干光源的相位的装置

    公开(公告)号:US08767289B2

    公开(公告)日:2014-07-01

    申请号:US12487504

    申请日:2009-06-18

    CPC classification number: H01S3/06754 H01S3/10053 H01S3/2308 H01S3/2383

    Abstract: The invention relates to a laser device comprising a number of fiber amplifiers (3) delivering a number of optical waves, which is supplied by an oscillator (1) that delivers a signal wave, characterized in that said device comprises: a coherent source (4) emitting a coherent wave at a wavelength approximately equal to that of the signal wave and the propagation direction of which is inclined to the propagation direction of the optical waves output by the fiber amplifiers; means for making the coherent wave interfere with the optical waves output by the fiber amplifiers, and generating an interferogram consisting of an array of fringes; interferogram detection means (7), the relative positions of the fringes transcribing an inter-fiber phase law; a spatial phase modulator (2); and processing/display means (6) for processing the detected phase law and for displaying it on the spatial modulator, said spatial modulator being positioned so as to be able to be read by the signal wave and thus generate a phase-modulated signal wave selectively at each of the fiber amplifiers, compensating for the phase shifts induced by said fiber amplifiers.

    Abstract translation: 本发明涉及一种包括多个光纤放大器(3)的激光装置,该多个光纤放大器(3)由传送信号波的振荡器(1)提供,其特征在于所述装置包括:相干光源(4) )发射波长近似等于信号波的相干波,其传播方向与由光纤放大器输出的光波的传播方向倾斜; 用于使相干波干扰由光纤放大器输出的光波的装置,以及产生由条纹阵列组成的干涉图; 干涉图检测装置(7),条纹转录纤维间相位定律的相对位置; 空间相位调制器(2); 以及处理/显示装置(6),用于处理所检测的相位定律并将其显示在空间调制器上,所述空间调制器被定位成能够被信号波读取,从而选择性地产生相位调制的信号波 在每个光纤放大器中,补偿由所述光纤放大器引起的相移。

    LASER SOURCE WITH COHERENT BEAM RECOMBINATION
    5.
    发明申请
    LASER SOURCE WITH COHERENT BEAM RECOMBINATION 有权
    具有相干光束重构的激光源

    公开(公告)号:US20100142574A1

    公开(公告)日:2010-06-10

    申请号:US12063619

    申请日:2006-08-10

    CPC classification number: H01S3/2383 H01S3/005 H01S3/067

    Abstract: A laser source is disclosed with coherent recombination of N spatial monomode laser beams having N phase shifters controlled by a phase-lock device (3). The phase-lock device has an optical device (30) capable of taking at least a portion of each of the N beams. The optical device has an optical element (32) capable of applying a phase deformation, and at least one matrix (M1) of detectors capable of detecting a first image (im) of a wave surface corresponding to the N beams. The matrix (M1) of detectors also detects a second image (imd) deformed by the optical element (32). Processing means (31) are provided for processing the first and second images. The processing means are configured so as to measure the phase pistons between on the sub-pupils (spj) corresponding to the N beams and to apply phase corrections c(φ) to each of the N beams, by means of said N phase shifters so as to minimize the phase pistons.

    Abstract translation: 公开了具有由锁相装置(3)控制的N个移相器的N个空间单模激光束的相干复合的激光源。 相位锁定装置具有能够取得N个光束中的每一个的至少一部分的光学装置(30)。 该光学装置具有能够施加相位变形的光学元件(32)和能够检测与N个光束对应的波形表面的第一图像(im)的至少一个检测器矩阵(M1)。 检测器的矩阵(M1)还检测由光学元件(32)变形的第二图像(imd)。 提供处理装置(31)用于处理第一和第二图像。 处理装置被配置为测量对应于N束的子瞳孔(spj)之间的相位活塞,并且通过所述N个移相器对每个N个波束施加相位校正c(&phgr) 以便使相位活塞最小化。

    LASER SOURCE FOR LIDAR APPLICATION
    6.
    发明申请
    LASER SOURCE FOR LIDAR APPLICATION 审中-公开
    LIDAR应用激光源

    公开(公告)号:US20100034222A1

    公开(公告)日:2010-02-11

    申请号:US12301063

    申请日:2007-05-25

    CPC classification number: H01S3/10092 G01S7/4814 H01S3/0064 H01S3/07 H01S3/235

    Abstract: The invention relates to a source comprising a self-adaptive main laser cavity comprising at least one main amplifying medium in a main direction and several mirrors making it possible to create a gain hologram within said main amplifying medium by interference of a first optical wave in the main direction and a second optical wave in a direction different from the main direction, said wave being generated by the main amplifying medium, characterized in that it also comprises a secondary laser source delivering photons at a frequency that they impose on the main cavity and means of introducing said photons within the main laser cavity, said secondary source making it possible to force the main source to function on the frequency imposed by this so-called secondary source.

    Abstract translation: 本发明涉及一种包括自主主激光腔的源,该自适应主激光腔包括在主方向上的至少一个主放大介质和几个反射镜,使得可以通过第一光波在所述主放大介质中的干扰而在所述主放大介质内产生增益全息图 主方向和第二光波在与主方向不同的方向上,所述波由主放大介质产生,其特征在于,它还包括辅助激光源,其以它们施加在主腔上的频率传送光子,并且装置 在主激光腔内引入所述光子,所述次级源使得可以迫使主源对由所谓的次级源施加的频率起作用。

    Laser Source Using Coherent Beam Recombination
    7.
    发明申请
    Laser Source Using Coherent Beam Recombination 审中-公开
    激光源使用相干光束重组

    公开(公告)号:US20080055700A1

    公开(公告)日:2008-03-06

    申请号:US11722676

    申请日:2005-12-19

    CPC classification number: H01S3/10023 H01S3/06754 H01S3/2383

    Abstract: A laser source comprises N incident laser beams, N equal to two at least, N single-mode spatial beam propagation media, each forming a propagation channel (gi) for one laser beam, a system for coherent recombination at the exit of the N channels, in order to deliver a recombined laser beam (fR) at the exit, and a phase control device (D) comprising N programmable phase-shifter elements (di) under closed-loop feedback control, one at the entry of each channel (gi). The source also comprises a polarization control device (P) comprising N programmable polarization controllers (pi) under closed-loop feedback control, one per channel, each controller being disposed between the associated phase-shifter element and channel.

    Abstract translation: 激光源包括N个入射激光束,N等于两个至少N个单模空间光束传播介质,每个形成用于一个激光束的传播通道(g> i),用于相干的系统 在N个通道的出口处的复合,以便在出口处传送重新组合的激光束(f SUB R);以及包括N个可编程移相器元件(d < 在闭环反馈控制下,一个在每个通道的入口处(g )。 该源还包括在闭环反馈控制下包括N个可编程极化控制器(pI)的偏振控制装置(P),每个通道一个,每个控制器设置在相关联的移相器元件和 渠道。

    Sensor device used to detect interferometric rotational speed and comprising an optical fibre
    8.
    发明申请
    Sensor device used to detect interferometric rotational speed and comprising an optical fibre 失效
    用于检测干涉转速并包括光纤的传感器装置

    公开(公告)号:US20070052969A1

    公开(公告)日:2007-03-08

    申请号:US10573073

    申请日:2004-08-25

    CPC classification number: G01C19/72 G01J9/02

    Abstract: The fiber-optic interferometric rotation sensor device of the invention comprises a laser source combined with an optical fiber and with a device for making the beam from the laser source interfere with the beam coming from the optical fiber, and, according to one feature of the invention, the laser source is an optical cavity having a gain lasing medium and the device includes, along the path of the beam output by the laser cavity, a beam splitter device associated with a mirror, the beam split off from the beam output by the laser cavity being sent into one of the ends of the optical fiber, the other end of which is directed toward the gain lasing medium that forms a nonlinear mirror, the splitter device being followed by a detector.

    Abstract translation: 本发明的光纤干涉式旋转传感器装置包括与光纤组合的激光源和用于使来自激光源的光束干扰来自光纤的光束的装置,并且根据 发明中,激光源是具有增益激光介质的光学腔,并且该装置沿着由激光腔输出的光束的路径包括与反射镜相关联的分束器装置,该光束从由光束输出的光束分离 激光腔被发送到光纤的一端中,其另一端指向形成非线性镜的增益激光介质,分离器装置跟随检测器。

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