METHODS AND APPARATUS FOR MODE-LOCKING ON-CHIP LASERS

    公开(公告)号:WO2018044363A3

    公开(公告)日:2018-03-08

    申请号:PCT/US2017/032088

    申请日:2017-05-11

    Abstract: An artificial saturable absorber uses additive pulse mode-locking to enable pulse operation of an on-chip laser operation. Four different artificial saturable absorbers are disclosed. The first includes an integrated coupler, two arms each containing some implementation of the end-reflector, and a phase bias element in one arm. The second includes an integrated directional coupler, two integrated waveguide arms, and another integrated coupler as an output. The third includes an integrated birefringent element, integrated birefringent-free waveguide, and integrated polarizer. And the fourth includes a multimode waveguide that allows for different modes to propagate in such a way that the difference in the spatial distribution of intensity causes a nonlinear phase difference between the modes. These are just some examples of an on-chip fully integrated artificial saturable absorber with instantaneous recovery time that allow for generation of sub-femtosecond optical pulses at high repetition rates using passive mode-locking.

    INTRA-CAVITY HARMONIC GENERATION IN LASERS
    4.
    发明申请
    INTRA-CAVITY HARMONIC GENERATION IN LASERS 审中-公开
    INTRA-CAVITY HARMONIC生成在激光

    公开(公告)号:WO2013169787A1

    公开(公告)日:2013-11-14

    申请号:PCT/US2013/039961

    申请日:2013-05-07

    Applicant: CONTINUUM

    Abstract: The specification and drawings present an apparatus and a method for intra-cavity harmonic generation in lasers such as solid-state lasers using a multi-resonance cavity with meniscus lenses for focusing corresponding wavelength radiation components on non- linear optical elements such as non- linear optical crystals using type I or type II phase-matching for significantly increasing efficiency of the harmonic conversion and output powers of generated harmonics. Using only type I or only type II phase -matching for all non- linear crystals may eliminate the requirement of linear-polarization on the fundamental laser wavelength generation. For example, a highly efficient UV Nd:YAG laser at 355 nm (a third harmonic of the fundamental wavelength of 1064 nm for the Nd:YAG laser) using intra-cavity triple resonance cavity and meniscus lenses has been developed using embodiments described herein.

    Abstract translation: 本说明书和附图提出了一种用于激光器中的腔内谐波产生的装置和方法,例如使用具有弯月透镜的多谐振腔的固态激光器,用于将对应的波长辐射分量聚焦在非线性光学元件如非线性 使用I型或II型相位匹配的光学晶体显着提高谐波转换效率和产生的谐波的输出功率。 对于所有非线性晶体,仅使用I型或II型相匹配可以消除基波激光波长产生中线偏振的要求。 例如,使用腔内三重共振腔和弯液面透镜的355nm处的高效UV Nd:YAG激光器(Nd:YAG激光器的基波长的三次谐波为1064nm)已经使用本文所述的实施例来开发。

    FREQUENCY TUNABLE WIRE LASERS
    5.
    发明申请
    FREQUENCY TUNABLE WIRE LASERS 审中-公开
    频率可调导线激光器

    公开(公告)号:WO2011102862A3

    公开(公告)日:2011-10-20

    申请号:PCT/US2010055224

    申请日:2010-11-03

    Inventor: HU QING

    Abstract: The present invention provides frequency tunable solid-state radiation-generating devices, such as lasers and amplifiers, whose active medium has a size in at least one transverse dimension (e.g., its width) that is much smaller than the wavelength of radiation generated and/or amplified within the active medium. In such devices, a fraction of radiation travels as an evanescent propagating mode outside the active medium. It has been discovered that in such devices the radiation frequency can be tuned by the interaction of a tuning mechanism with the propagating evanescent mode.

    Abstract translation: 本发明提供频率可调的固态辐射产生装置,例如激光器和放大器,其活性介质在至少一个横向尺寸(例如,其宽度)上的尺寸远小于所产生的辐射的波长和/ 或在活性介质内扩增。 在这样的装置中,一部分辐射作为活性介质外的eva逝传播模式传播。 已经发现,在这种装置中,辐射频率可以通过调谐机构与传播渐逝模式的相互作用来调节。

    BROADLY TUNABLE OPTICAL PARAMETRIC OSCILLATOR
    6.
    发明申请
    BROADLY TUNABLE OPTICAL PARAMETRIC OSCILLATOR 审中-公开
    广泛应用光学参数振荡器

    公开(公告)号:WO2011091316A2

    公开(公告)日:2011-07-28

    申请号:PCT/US2011022144

    申请日:2011-01-21

    Abstract: A novel broadly tunable optical parametric oscillator is described for use in numerous applications including multi-photon microscopy. The optical parametric oscillator includes at least one sub-picosecond laser pump source configured to output a pump signal having a wavelength of about 650nm or less and at least one type II optical parametric oscillator in optical communication with the pump source and configured to generate a single widely tunable pulsed optical signal. In one application, an optical system is in optical communication with the optical parametric oscillator and configured to direct at least a portion of the optical signal to a specimen, and at least one analyzing device is configured to receive a signal from the specimen in response to the optical signal.

    Abstract translation: 描述了一种新颖的广泛可调光参量振荡器用于包括多光子显微镜在内的许多应用中。 所述光学参数振荡器包括至少一个亚皮秒激光泵浦源,其被配置为输出波长为约650nm或更小的泵浦信号,以及至少一个II型光参量振荡器,与所述泵浦光源通信并被配置为产生单个 广泛可调的脉冲光信号。 在一个应用中,光学系统与光学参量振荡器光学通信并且被配置为将至少一部分光学信号引导到样本,并且至少一个分析装置被配置为响应于 光信号。

    BETRIEBSVERFAHREN FÜR EINE ZÜNDEINRICHTUNG UND ZÜNDEINRICHTUNG
    7.
    发明申请
    BETRIEBSVERFAHREN FÜR EINE ZÜNDEINRICHTUNG UND ZÜNDEINRICHTUNG 审中-公开
    操作程序点火装置和点火装置

    公开(公告)号:WO2008000585A1

    公开(公告)日:2008-01-03

    申请号:PCT/EP2007/055447

    申请日:2007-06-04

    Abstract: Die Erfindung betrifft ein Verfahren zum Betreiben einer Zündeinrichtung für eine Brennkraftmaschine (10), insbesondere eines Kraftfahrzeugs, mit einer Lasereinrichtung (26), die einen laseraktiven Festkörper (44) mit einer passiven Güteschaltung (46) sowie einen der passiven Güteschaltung (46) nachgeschalteten optischen Verstärker (70) aufweist, und die einen Laserimpuls (24) zur Abstrahlung in einen Brennraum (14) erzeugt, und mit einer Pumplichtquelle (30), die ein Pumplicht (60) für den laseraktiven Festkörper (44) und den optischen Verstärker (70) der Lasereinrichtung (26) bereitstellt. Erfindungsgemäß wird die Energie des Laserimpulses (24) gesteuert, indem eine Wellenlänge des Pumplichts (60) geändert wird.

    Abstract translation: 本发明涉及一种操作的点火装置用于内燃发动机(10),尤其是机动车辆的,具有激光装置(26)包括激光活性固体(44),其具有被动Q开关(46)和一个被动Q开关(46)的方法,下游 产生光放大器(70),和一个激光脉冲(24),用于发射到燃烧室(14)中,并用一个泵浦光源(30)(泵浦光(60),用于将激光活性固体(44)和所述光放大器 70)的激光装置(26)提供。 根据本发明,所述激光脉冲(24)的能量由激励光(60)的波长控制被改变。

    MULTIPLEXED DATA STORAGE METHOD
    8.
    发明申请

    公开(公告)号:WO2007077468A3

    公开(公告)日:2007-07-12

    申请号:PCT/HU2006/000129

    申请日:2006-12-27

    Applicant: LAKÓ, Sándor

    Inventor: LAKÓ, Sándor

    Abstract: The core of me invention is a method and apparatus for transformation of matter parameters through optical way. In course of this method we create a multilateral pattern inside sample matter through specific imaging beam issued by a light emitting device. The most significant application of the suggested method is for writing on optic data storage media. Further application concerns the analysis of the above-mentioned optical parameters, i.e. reading data from the storage media.

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