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    RAMAN FIBRE-OPTICAL LASER, BRAGG FIBRE-OPTICAL GRATING AND A METHOD OF ALTERING THE REFRACTIVE INDEX IN GERMANO-SILICATE GLASS
    3.
    发明公开
    RAMAN FIBRE-OPTICAL LASER, BRAGG FIBRE-OPTICAL GRATING AND A METHOD OF ALTERING THE REFRACTIVE INDEX IN GERMANO-SILICATE GLASS 失效
    FASEROPTISCHER拉曼激光器，FASEROPTISCHES BRAGG-GITTER UND EIN VERFAHREN ZURÄNDERUNGDES BRECHUNGSINDEXES in GERMANIUMSILIKAT GLASS

    公开(公告)号：EP0784217A1

    公开(公告)日：1997-07-16

    申请号：EP96928750.7

    申请日：1996-07-05

    申请人： Nauchny Tsentr Volokonnoi Optiki Pri Institute Obschei Fiziki Rossiiskoi Akademii Nauk

    发明人： DIANOV, Evgeny Mikhailovich ,  PROKHOROV, Alexandr Mikhailovich ,  STARODUBOV, Dmitry Sergeevich ,  FROLOV, Artem Alexeevich

    IPC分类号： G02B6/34 ,  H01S3/30 ,  G02F1/00 ,  G02B6/16

    CPC分类号： H01S3/06716 ,  C03C17/32 ,  C03C23/0025 ,  C03C25/105 ,  C03C25/6208 ,  C03C2218/32 ,  G02B6/02095 ,  G02B6/021 ,  G02B6/02128 ,  G02B6/02133 ,  G02B2006/02161 ,  G02B2006/12107 ,  H01S3/302

    摘要： The inventions relate to the sphere of the laser technology, the fibre and integrated optics, and are industrially applicable in elements of the fibre and waveguide optics made of germanium silicate glass, particularly in fibre-optical Bragg gratings and long-spacing gratings, scattering compensators, integrated optical waveguides, etc. The objective of simplification of Raman fibre lasers emitting in the wavelengths of 1.24 mc and 1.48 mc and enhancement of the radiation conversion efficiency in Raman scattering is attained. A laser emitting in the wavelength of 1.24 mc comprises a pumping source (1), a fibre light guide (2) containing P2O5 in the amount from 1 to 30 mole %, portions of a fibre light guide that contain GeO2 in the amount from 11 to 39 mole % and are Bragg fibre-optical gratings (3) and (4), grating (3) forming a blank distributed reflector of an optical resonator for first Stokes component, and grating (4) - the output distributed reflector for the same resonator. First Stokes component is derived at the output. In a Raman fibre laser emitting in the wavelength of 1.48 mc second Stokes component is derived. A change in the refraction index in a portion of a fibre light guide (11) is achieved by directing to it a laser radiation (12) having a wavelength from 270 to 390 nm that passes through a protection polymer cladding of a fibre light guide (11).

    摘要翻译： 本发明涉及激光技术，光纤和集成光学领域，并且在工业上适用于由锗硅酸盐玻璃制成的光纤和波导光学元件，特别是在光纤布拉格光栅和长间隔光栅中，散射补偿器 集成光波导等。实现了在1.24mc和1.48mc的波长下发射的拉曼光纤激光器的简化和提高拉曼散射中的辐射转换效率的目的。 发射波长为1.24mc的激光器包括泵浦源（1），含有1至30摩尔％的P2O5的纤维光导（2），纤维光导的部分含有量为11的GeO2 至39摩尔％，并且是布拉格光纤光栅（3）和（4），形成用于第一斯托克斯分量的光学谐振器的空白分布反射器的光栅（3）和光栅（4） - 用于相同的输出分布反射器 谐振器。 在输出端派生第一个斯托克斯分量。 在发射波长为1.48mc的拉曼光纤激光器中，推导出斯托克斯分量。 纤维光导（11）的一部分中的折射率的变化是通过将具有270至390nm的波长的激光辐射（12）引导到穿过纤维光导的保护聚合物包层 11）。

    Optical waveguide embedded light redirecting Bragg grating arrangement
    5.
    发明公开
    Optical waveguide embedded light redirecting Bragg grating arrangement 失效
    Umlenkende Bragg-Gitteranordnung在einem optischen Wellenleiter。

    公开(公告)号：EP0438759A2

    公开(公告)日：1991-07-31

    申请号：EP90125111.6

    申请日：1990-12-21

    申请人： UNITED TECHNOLOGIES CORPORATION

    发明人： Meltz, Gerald ,  Glenn, William Henry

    IPC分类号： G02B6/12 ,  G02B6/16 ,  G02B6/34

    CPC分类号： G02B6/02133 ,  G02B6/02109 ,  G02B6/02128

    摘要： An optical waveguide light tapping arrangement includes an optical waveguide (10) having solid portions (11) that guide light in a first path along a longitudinal axis, with at least one grating region (13) being embedded in the solid portion at a location remote from its end portions. The grating region includes a multitude of grating elements (14) extending with a substantially equal longitudinal spacing (a) at an oblique angle (α) relative to the longitudinal axis to redirect light reaching-the grating elements between the first path and at least one second path extending externally of the waveguide at an angle relative to the longitudinal axis that depends on the oblique angle. When light is directed in one of the first and second paths toward the grating region, it is redirected by the grating elements into the respectively other of the second and first paths with attendant in-phase combination in the other path of light having a wavelength within a narrow range around a central wavelength that is in a predetermined relationship to the spacing of the grating elements. The light propagating in the other path can then be captured. The grating elements are formed in the core by exposing the core to an interference pattern of two ultraviolet radiation beams that are symmetrical with respect to a plane extending at the oblique angle relative to the core axis.

    摘要翻译： 光波导光束排列装置包括具有实心部分（11）的光波导（10），所述实心部分沿着纵向轴线引导第一路径中的光，其中至少一个光栅区域（13）嵌入固体部分中的远程位置 从其端部。 光栅区域包括多个光栅元件（14），其相对于纵向轴线以相对于纵向轴线（α）的大致相等的纵向间隔（a）延伸，以重定向到达光栅元件的光在第一路径和至少一个 第二路径相对于纵向轴线以相对于倾斜角度的角度相对于波导外延伸。 当光被引导到第一和第二路径中的一个朝向光栅区域时，其被光栅元件重定向到第二和第一路径中的另外的另一个路径，并且在具有波长的光的另一个光路中伴随着同相的组合 围绕与光栅元件的间隔成预定关系的中心波长的窄范围。 然后可以捕获在另一路径中传播的光。 光栅元件通过将芯暴露于相对于以相对于芯轴为倾斜角延伸的平面对称的两个紫外线辐射束的干涉图案而形成在芯中。

    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON ZUMINDEST EINEM FASER-BRAGG-GITTER
    6.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON ZUMINDEST EINEM FASER-BRAGG-GITTER 审中-公开

    公开(公告)号：EP2929381A1

    公开(公告)日：2015-10-14

    申请号：EP13799521.3

    申请日：2013-12-02

    申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： SCHADE, Wolfgang ,  BURGMEIER, Jörg

    IPC分类号： G02B6/02 ,  H01S3/00 ,  B23K26/06

    CPC分类号： G02B6/02128 ,  B23K26/006 ,  G02B6/02147 ,  G02B6/02152 ,  H01S3/0057

    摘要： The invention relates to a method and a device for producing at least one fibre Bragg grating (1) in a waveguide (2), wherein the waveguide (2) has at least one core (21) having a first refractive index (n
    1 ) and the fibre Bragg grating (1) contains a plurality of spatial regions (10) which each occupy a partial volume of the core (21) and have a second refractive index (n
    2 ), wherein the spatial regions (10) are each produced by the action of laser radiation on a partial volume of the core (21), wherein the laser radiation contains a plurality of pulse trains (5) each containing a plurality of individual pulses (51), wherein the time interval between successive individual pulses (51) is smaller than the time interval between successive pulse trains (5) and the time interval between successive individual pulses (51) is chosen between 10 ns and 100 ps or the pulse train has a duration of 50 fs to 50 ps.

    摘要翻译： 本发明涉及一种用于在波导中制造至少一个光纤布拉格光栅的方法和装置，其中波导具有至少一个具有第一折射率的光纤，并且光纤布拉格光栅包含多个空间区域，每个空间区域占据部分 芯的体积并具有第二折射率，其中空间区域各自通过激光辐射在芯的部分体积上的作用产生，其中激光辐射包含多个脉冲序列，每个脉冲串包含多个独立的脉冲， 其中连续单个脉冲之间的时间间隔小于连续脉冲串之间的时间间隔，并且在10ns和100ps之间选择连续单个脉冲之间的时间间隔，或脉冲串具有50fs至50ps的持续时间。

    AUTOMATED SYSTEM FOR TRANS-JACKET FIBER BRAGG GRATING INSCRIPTION AND MANUFACTURING
    9.
    发明公开
    AUTOMATED SYSTEM FOR TRANS-JACKET FIBER BRAGG GRATING INSCRIPTION AND MANUFACTURING 审中-公开
    自动系统用于反式夹克光纤光栅说明和制造

    公开(公告)号：EP3290971A1

    公开(公告)日：2018-03-07

    申请号：EP17189135.1

    申请日：2017-09-01

    申请人： National Research Council of Canada

    发明人： MIHAILOV, Stephen ,  GROBNIC, Dan ,  LAUSTEN, Rune ,  WALKER, Robert ,  LU, Ping ,  DING, Huimin ,  COULAS, David ,  HNATOVSKY, Cyril

    IPC分类号： G02B6/02

    CPC分类号： G02B6/02138 ,  G02B5/1857 ,  G02B6/021 ,  G02B6/02128 ,  G02B6/262 ,  G02B6/4219 ,  G02B2006/02161

    摘要： There is provided an alignment system and method for use in an ultrashort pulse duration laser-based Fiber Bragg Grating (FBG) writing system, the alignment system comprising: clamps configured to hold a coated optical fiber in a position perpendicular to a beam path of an ultrashort pulse duration laser-based FBG writing station; an optical detector; and a control system with an input from the optical detector and an output to adjust parameters of an optical source and the FBG writing station adjust a distance between the optical fiber and an optical source of the writing station based on luminescence generated in a core of the optical fiber as indicated in a signal received at the input from the optical detector.

    摘要翻译： 提供了用于基于超短脉冲持续时间激光器的光纤布拉格光栅（FBG）写入系统中的对准系统和方法，所述对准系统包括：夹具，其被配置为将涂覆光纤保持在垂直于 超短脉冲持续时间基于激光的FBG写入站; 一个光学检测器; 以及具有来自所述光学检测器的输入和用于调整光源的参数的输出的控制系统，并且所述FBG写入站基于所述光纤的芯部中产生的发光来调整所述光纤和所述写入站的光源之间的距离 光纤，如在来自光学检测器的输入处接收到的信号中所指示的。