A MID-INFRARED CASCADING FIBER AMPLIFIER AND METHOD FOR AMPLIFICATION THEREOF
    1.
    发明申请
    A MID-INFRARED CASCADING FIBER AMPLIFIER AND METHOD FOR AMPLIFICATION THEREOF 审中-公开
    一种中红外光栅放大器及其放大方法

    公开(公告)号:WO2016200453A2

    公开(公告)日:2016-12-15

    申请号:PCT/US2016/022093

    申请日:2016-03-11

    申请人: BAYLOR UNIVERSITY

    IPC分类号: G02F1/365

    摘要: A mid-infrared cascading fiber amplifier device having a source configured to generate a first electromagnetic wave output at a first frequency, a fiber coupled to the source and a pump coupled to the fiber and configured to generate a second electromagnetic wave output at a second frequency, wherein the second frequency is higher than the first frequency and causes the fiber to undergo two or more transitions in response to stimulation by the first electromagnetic wave output at the first frequency, wherein the first transition generates the first electromagnetic wave output approximately at the first frequency and the second transition generates the first electromagnetic wave output approximately at the first frequency.

    摘要翻译: 一种中红外级联光纤放大器装置,其具有被配置为产生第一频率的第一电磁波输出,耦合到源的光纤和耦合到光纤的泵,并被配置为产生第二频率的第二电磁波输出 ,其中所述第二频率高于所述第一频率,并且使得所述光纤响应于所述第一频率处的所述第一电磁波输出的刺激而经历两个或更多个转变,其中所述第一转换产生大致在第一频率处的第一电磁波输出 频率和第二转换大致以第一频率产生第一电磁波输出。

    SINGLE-BAND OPTICAL FIBER AMPLIFIER
    3.
    发明申请
    SINGLE-BAND OPTICAL FIBER AMPLIFIER 审中-公开
    单带光纤放大器

    公开(公告)号:WO00059080A1

    公开(公告)日:2000-10-05

    申请号:PCT/FR2000/000768

    申请日:2000-03-28

    摘要: The invention relates to a single-band optical fiber amplifier (10) comprising an amplifying fiber (4) and pumping means (3) in addition to reverberating means (20, 11) that send back amplified spontaneous emission noise to the amplifying fiber. The invention makes it possible to limit losses that are due to amplified spontaneous emission noise by sending said noise back towards the amplifying fiber in a direction of propagation which is opposite to the direction of propagation of the signal that is to be amplified.

    摘要翻译: 本发明涉及除了将放大的自发发射噪声发送到放大光纤的混响装置(20,11)之外还包括放大光纤(4)和泵送装置(3)的单频带光纤放大器(10)。 本发明使得可以通过在与要放大的信号的传播方向相反的传播方向上向放大光纤发送所述噪声来限制由放大的自发发射噪声引起的损耗。

    DEVICE FOR ABLATING MATERIAL USING A LASER BEAM
    4.
    发明申请
    DEVICE FOR ABLATING MATERIAL USING A LASER BEAM 审中-公开
    DEVICE烧蚀材料的研究激光辐射

    公开(公告)号:WO98040940A1

    公开(公告)日:1998-09-17

    申请号:PCT/EP1998/001349

    申请日:1998-03-07

    摘要: The invention relates to a device for ablating biological substances using a laser beam, especially during stomatological treatment, comprising a pump laser and a laser converter for converting the pump laser beam into a laser beam with a wavelength range of 3 mu m +/- 0.2 mu m. Said laser converter is placed in a processing head which is separated from the pump laser by a fiber optic device. In accordance with the invention, a metal holmium fluoride crystal with an alkali or alkaline earth ion as a metal ion and with partial substitution of the holmium (Ho) ions is provided in the laser converter, said crystal being one of the compounds Me(Ho1-xPrx)F4 with a metal ion of lithium (Li) or sodium (Na), a fluorine ion and containing x=0.001 to 0.03 parts praseodymium or Ba(Ho1-xPrx)2F8 with Ba a barium ion, with F a fluorine ion and containing x=0.0005 to 0.015 parts praseodymium.

    摘要翻译: 本发明涉及一种用于生物物质的消融装置通过激光辐射的装置,特别是在口腔治疗,包括一个泵浦激光器和用于将泵激光辐射转换成的波长范围3微米+/- 0.2微米的激光辐射的激光转换器, 其中,所述激光转换器被容纳在单独通过从泵激光加工头光纤装置。 与碱金属或碱土金属离子如与钬(Ho)的部分取代金属离子的金属 - 钬氟化物结晶是根据本发明的激光转换器的离子提供,即化合物与金属我(HO1 xPrx)F4中的一个 锂离子(Li)或钠(Na),氟离子,并用x的镨= 0.001的馏分至0.03或Ba(HO1 xPrx)2F8用Ba钡离子,以F氟 x的镨的离子,并用流分= 0.0005〜0.015。

    MID TO FAR INFRARED DIAMOND RAMAN LASER SYSTEMS AND METHODS
    5.
    发明申请
    MID TO FAR INFRARED DIAMOND RAMAN LASER SYSTEMS AND METHODS 审中-公开
    MID到FAR红外线雷达拉曼激光系统和方法

    公开(公告)号:WO2011103630A1

    公开(公告)日:2011-09-01

    申请号:PCT/AU2011/000201

    申请日:2011-02-24

    IPC分类号: H01S3/30 H01S3/094

    摘要: A mid- to far-infrared solid state Raman laser system comprising a resonator cavity comprising: an input reflector adapted to be highly transmissive for light with a first wavelength in the range of about 3 to about 7.5 micrometers for admitting the first beam to the resonator cavity; and an output reflector adapted to be partially transmissive for light with a second wavelength greater than about 5.5 micrometers for resonating the second wavelength in the resonator and for outputting an output beam, the input reflector further being adapted to be highly reflective at the second wavelength for resonating the second wavelength in the resonator; and a solid state diamond Raman material located in the resonator cavity for Raman shifting the pump beam and generating the second wavelength.

    摘要翻译: 包括谐振腔的中到远红外固态拉曼激光器系统包括:输入反射器,其适于对于具有约3至约7.5微米范围内的第一波长的光具有高透射性,用于将第一光束引入谐振器 腔; 以及输出反射器,其适于对于具有大于约5.5微米的第二波长的光部分透射以谐振谐振器中的第二波长并输出输出光束,所述输入反射器还适于在第二波长处为高反射性,以用于 谐振器中的第二波长谐振; 以及位于谐振腔内的固态金刚石拉曼材料,用于拉曼移位泵浦光束并产生第二波长。

    SIGNAL BAND ANTIREFLECTION COATING FOR PUMP FACET
    6.
    发明申请
    SIGNAL BAND ANTIREFLECTION COATING FOR PUMP FACET 审中-公开
    信号灯带防反射涂层

    公开(公告)号:WO00042684A1

    公开(公告)日:2000-07-20

    申请号:PCT/US2000/000865

    申请日:2000-01-13

    摘要: A laser diode pump for fiber amplifiers, such as erbium-doped fiber amplifiers (EDFAs), reduces spurious reflections in the signal frequencies by providing a laser pump system that is dissipative at these signal frequencies. Reflections from the pump system are reduced, or eliminated by using an output facet that is currently coated to be reflective at pump frequencies, but anti-reflective, or transmissive, at the signal frequencies. In one embodiment, material layers of aluminum oxide (Al2O3), titanium dioxide (TiO2), and silicon dioxide (SiO2) are used.

    摘要翻译: 用于光纤放大器的激光二极管泵(例如掺铒光纤放大器(EDFA))通过提供在这些信号频率处耗散的激光泵系统来减少信号频率中的伪反射。 来自泵系统的反射通过使用当前被涂覆为在泵浦频率处反射但在反射或者透射的信号频率处的反射的输出小面被减少或消除。 在一个实施例中,使用氧化铝(Al 2 O 3),二氧化钛(TiO 2)和二氧化硅(SiO 2)的材料层。

    L-BAND AMPLIFICATION WITH DETUNED 980NM PUMP
    7.
    发明申请
    L-BAND AMPLIFICATION WITH DETUNED 980NM PUMP 审中-公开
    带有980NM泵的L带放大

    公开(公告)号:WO00031840A1

    公开(公告)日:2000-06-02

    申请号:PCT/US1999/026777

    申请日:1999-11-10

    摘要: A method of operating an optical amplifier for improved gain and pump-to-signal conversion efficiency in a long wavelength spectral region (L-band) of the emission spectrum of a rare earth doped gain medium having a known pump absorption band involves the steps of providing an optical signal to the amplifier having a large-signal input power; and providing pumping light to the amplifier having a wavelength that is different from a center wavelength of the known pump absorption band for amplifying the optical signal. Signal gain and improved pump-to-signal conversion efficiency was demonstrated for an erbium L-band signal by detuning the pump between about +/-0-30nm on either side of the pump band center wavelength of 979-980nm. An optical amplifier employing the described method is also disclosed.

    摘要翻译: 在具有已知的泵吸收带的稀土掺杂增益介质的发射光谱的长波长光谱区域(L波段)中操作光放大器以改善增益和泵浦到信号转换效率的方法包括以下步骤: 向具有大信号输入功率的放大器提供光信号; 以及向具有不同于已知泵吸收带的中心波长的波长的放大器提供泵浦光,用于放大光信号。 通过在979-980nm的泵浦波段中心波长的任一侧上的约+/- 0-30nm之间的泵失谐来证明铒L波段信号的信号增益和改进的泵浦到信号转换效率。 还公开了采用所述方法的光放大器。

    OPTICALLY TRANSPARENT HEAT SINK FOR LONGITUDINALLY COOLING AN ELEMENT IN A LASER
    8.
    发明申请
    OPTICALLY TRANSPARENT HEAT SINK FOR LONGITUDINALLY COOLING AN ELEMENT IN A LASER 审中-公开
    光学透明散热片,用于长时间冷却激光元件

    公开(公告)号:WO1998032197A1

    公开(公告)日:1998-07-23

    申请号:PCT/US1997023029

    申请日:1997-12-12

    IPC分类号: H01S03/042

    摘要: A longitudinally-cooled laser element assembly comprises an optically transparent heat sink (OTH) (110, 120) coupled to a laser element (100) and a heat sink (130, 140). An etalon structure including a first flat surface and a second, substantially parallel flat surface is formed in the laser element and/or the OTH. In some embodiments, a balanced etalon is provided by forming a reflector on the second flat surface (107) of the etalon that has a reflectivity approximately equal to the Fresnel loss at the interface between the OTH and the laser element. In some embodiments the laser element assembly includes a second OTH (120) coupled to the laser element at a second interface, thereby defining a second Fresnel loss. Preferably, the second OTH has an index of refraction substantially equal to the index of refraction of the first OTH, so that said first and second Fresnel losses are approximately equal and a balanced etalon is formed. In some embodiments the laser element comprises a solid-state gain medium. In other embodiments the laser element comprises a nonlinear frequency conversion crystal. An intracavity frequency-converted laser is described in which OTHs are used to cool both the gain medium and the nonlinear material.

    摘要翻译: 纵向冷却的激光元件组件包括耦合到激光元件(100)和散热器(130,140)的光学透明散热器(OTH)(110,120)。 在激光元件和/或OTH中形成包括第一平坦表面和第二基本上平行的平坦表面的标准具结构。 在一些实施例中,通过在标准具的第二平坦表面(107)上形成反射率来提供平衡的标准具,该反射率大约等于OTH和激光元件之间的界面处的菲涅耳损耗。 在一些实施例中,激光元件组件包括在第二界面处耦合到激光元件的第二OTH(120),从而限定第二菲涅耳损耗。 优选地,第二OTH具有基本上等于第一OTH的折射率的折射率,使得所述第一和第二菲涅尔损耗近似相等,并且形成平衡的标准具。 在一些实施例中,激光元件包括固态增益介质。 在其它实施例中,激光元件包括非线性频率转换晶体。 描述了腔内频率转换激光器,其中使用OTH来冷却增益介质和非线性材料。

    OPTIMIZED CASCADED RAMAN FIBER-BASED LASER SOURCE FOR HIGH EFFICIENCY MID-INFRARED SPECTRAL GENERATION
    9.
    发明申请
    OPTIMIZED CASCADED RAMAN FIBER-BASED LASER SOURCE FOR HIGH EFFICIENCY MID-INFRARED SPECTRAL GENERATION 审中-公开
    优化基于拉曼光纤的激光源,实现高效中红外光谱产生

    公开(公告)号:WO2010011389A2

    公开(公告)日:2010-01-28

    申请号:PCT/US2009042473

    申请日:2009-05-01

    IPC分类号: H01S3/067

    摘要: A laser structure is provided that includes a pulsed source producing a pulsed signal having a low spontaneous noise component to its spectral output and a pulse-shape that is optimally flat. Also, the laser structure includes one or more optical fiber structures receiving the pulsed signal and performing Raman amplification. The pulsed signal is used to excite in the one or more optical fiber structures possessing normal chromatic dispersion, which acts as a nonlinear system for efficient mid- infrared spectral generation.

    摘要翻译: 提供了一种激光器结构,其包括产生具有对其光谱输出具有低自发噪声分量的脉冲信号的脉冲源和最佳平坦的脉冲形状。 此外,激光器结构包括接收脉冲信号并执行拉曼放大的一个或多个光纤结构。 脉冲信号用于激发具有正常色散的一个或多个光纤结构,其作为用于有效的中红外光谱产生的非线性系统。

    OPTICAL AMPLIFIER METHOD AND APPARATUS
    10.
    发明申请
    OPTICAL AMPLIFIER METHOD AND APPARATUS 审中-公开
    光放大器方法和设备

    公开(公告)号:WO0239552A2

    公开(公告)日:2002-05-16

    申请号:PCT/GB0104944

    申请日:2001-11-08

    IPC分类号: H01S3/067 H01S3/094 H01S3/00

    摘要: An L-band Er-doped optical amplifier has a 60m to 110m length of doped optical fiber. Pump light in the wavelength range from 1435nm to 1460nm is coupled into the fiber. Substantially no light in the range 1465nm to 1505 nm is coupled into the fiber. The gain of the amplifier is greater than when using pump light of 1480nm.

    摘要翻译: L波段铒掺杂光放大器的掺杂光纤长度为60m到110m。 波长范围从1435nm到1460nm的泵浦光耦合到光纤中。 在1465nm至1505nm范围内的光几乎没有耦合到光纤中。 放大器的增益大于使用1480nm的泵浦光时的增益。