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11. 发明公开

EP2460038A1 METHOD FOR WRITING HIGH POWER RESISTANT BRAGG GRATINGS USING SHORT WAVELENGTH ULTRAFAST PULSES 有权
标题翻译：方法WRITING高耐-PERFORMANCE布拉格网格使用短波长的超快速IMPULSE
公开(公告)号：EP2460038A1
公开(公告)日：2012-06-06
申请号：EP10803787.0
申请日：2010-07-29
申请人： Université Laval
发明人： VALLEE, Real , BERNIER, Martin
IPC分类号： G02B6/124 , G02B5/18
CPC分类号： G02B5/1857 , G02B6/02142
摘要： A method for writing a Bragg grating in a rare-earth doped glass optical waveguide is provided. Ultrafast optical pulses are generated, preferably in the femtosecond range and having a writing wavelength in the range of 300nm to 700nm and an intensity sufficient to induce a change of refractive index in the rare-earth doped glass waveguide through densification. The optical pulses are diffracted using a phase mask, to generate an interference pattern having a pitch providing a fundamental Bragg resonance corresponding to the target wavelength to be reflected by the grating. The interference pattern is impinged on a region of the rare-earth doped glass waveguide, which is heated to a temperature above a threshold of about 350°C, for a predetermined heating period. Advantageously, the heating step allows the elimination of photodarkening effects which would otherwise be present in the waveguiding properties of the waveguide.

12. 发明授权

EP0736783B1 Method of forming refractive index distribution in light transmission path, and optical filter and method of using the same 失效
$Method of forming refractive index distribution in light transmission path, and optical filter and method of using the same$
标题翻译：在滤光器和使用该过滤器的方法的光路的横截面的制造折射率分布的方法
公开(公告)号：EP0736783B1
公开(公告)日：2008-07-02
申请号：EP96103417.0
申请日：1996-03-05
申请人： Sumitomo Electric Industries, Ltd.
发明人： Nakaishi, Hiroyuki
IPC分类号： G02B6/02 , G02B6/028
CPC分类号： G02B6/02142 , G02B6/02138 , G02B6/022

13. 发明公开

EP1672397A3 Method of forming refractive index distribution in light transmission path, and optical filter and method of using the same 失效
$Method of forming refractive index distribution in light transmission path, and optical filter and method of using the same$
标题翻译：一种用于在光传输路径的折射率分布过程，滤光器和使用它们的方法
公开(公告)号：EP1672397A3
公开(公告)日：2006-09-13
申请号：EP06005525.8
申请日：1996-03-05
申请人： Sumitomo Electric Industries, Ltd.
发明人： Nakaishi, Hiroyuki
IPC分类号： G02B6/02
CPC分类号： G02B6/02142 , G02B6/02138 , G02B6/022
摘要： A method of forming a refractive index distribution in a light transmission path is adapted to apply a photosensitive material layer (3) to the surface of a clad layer (2, 2a), form a mask pattern (3a) of the photosensitive material layer through photolithography, and irradiate a light transmission path (10, 10a) with an electromagnetic wave having a wavelength not exceeding that of visible light through the mask pattern (3a), thereby forming a periodic refractive index fluctuation distribution corresponding to the mask pattern (3a) in a core (1).

14. 发明公开

EP1672397A2 Method of forming refractive index distribution in light transmission path, and optical filter and method of using the same 失效
$Method of forming refractive index distribution in light transmission path, and optical filter and method of using the same$
标题翻译：一种用于在光传输路径的折射率分布过程，滤光器和使用它们的方法
公开(公告)号：EP1672397A2
公开(公告)日：2006-06-21
申请号：EP06005525.8
申请日：1996-03-05
申请人： Sumitomo Electric Industries, Ltd.
发明人： Nakaishi, Hiroyuki
IPC分类号： G02B6/02
CPC分类号： G02B6/02142 , G02B6/02138 , G02B6/022
摘要： A method of forming a refractive index distribution in a light transmission path is adapted to apply a photosensitive material layer (3) to the surface of a clad layer (2, 2a), form a mask pattern (3a) of the photosensitive material layer through photolithography, and irradiate a light transmission path (10, 10a) with an electromagnetic wave having a wavelength not exceeding that of visible light through the mask pattern (3a), thereby forming a periodic refractive index fluctuation distribution corresponding to the mask pattern (3a) in a core (1).
摘要翻译：在光传输路径形成折射率分布的方法是angepasst施加光敏材料层（3）的包覆层（2，2a）的表面上，通过形成在感光材料层的掩模图案（图3a）光刻，并且在电磁波照射波长不超过没有可见光的通过掩模图案（3a）中，从而形成周期性折射率波动分布对应于掩模图案（图3a）与光传输路径（10，10a）的在芯部（1）。

15. 发明授权

EP1014124B1 Method of optical fibre grating fabrication 有权
标题翻译：用于光纤生产的光栅的方法
公开(公告)号：EP1014124B1
公开(公告)日：2002-11-13
申请号：EP99125282.6
申请日：1999-12-18
申请人： Agilent Technologies, Inc. (a Delaware corporation)
发明人： Boschis, Laura , Emelli, Enrico , Rossotto, Oriana , Tallone, Luigi
IPC分类号： G02B6/16
CPC分类号： G02B6/02138 , G02B6/02085 , G02B6/02142 , G02B6/02152

16. 发明公开

EP1191366A3 Optical fibre grating fabrication apparatus which minimizes diffraction effects 有权
$Optical fibre grating fabrication apparatus which minimizes diffraction effects$
标题翻译：安排用于生产光纤光栅，光衍射最小化effecte
公开(公告)号：EP1191366A3
公开(公告)日：2002-04-17
申请号：EP01117381.2
申请日：2001-07-18
申请人： SAMSUNG ELECTRONICS CO. LTD.
发明人： Park, Moo-Youn
IPC分类号： G02B6/16
CPC分类号： G02B6/02142 , G02B6/02152 , G02B2006/12107
摘要： There is provided an optical fiber grating fabricating apparatus. To fabricate fiber gratings, an optical fiber (40,50) is prepared, a mask (42,52) with a predetermined period is spaced from the optical fiber (40,50), for forming patterns to be used in fabricating gratings on the optical fiber (40,50), a UV (Ultra Violet) light source projects UV light in a perpendicular direction to the optical fiber (40,50), a lens (46,56) focuses the UV light, and a mobile concave lens (44,54) diverges the focused UV light along the length direction of the optical fiber (40,50) and changes the period of the fiber gratings while moving to and from.

17. 发明公开

EP1121613A1 APPARATUS FOR MANUFACTURING LONG-PERIOD FIBER GRATINGS AND APPARATUS FOR MANUFACTURING TWO-BAND LONG-PERIOD FIBER GRATINGS USING THE SAME 审中-公开
标题翻译：设备技术纤维筋与周期长一个或两个带地区的生产
公开(公告)号：EP1121613A1
公开(公告)日：2001-08-08
申请号：EP99938622.0
申请日：1999-08-11
申请人： Samsung Electronics Co., Ltd.
发明人： JANG, Joo-Nyung
IPC分类号： G02B6/16
CPC分类号： G02B6/02142 , G02B6/02095
摘要： An apparatus for manufacturing a long-period fiber grating and a two-band long-period fiber grating manufacturing apparatus using the same are provided. The apparatus includes a light source (100) for generating the UV laser light, a mirror (102) for reflecting the UV laser light generated in the light source (100) at a predetermined angle and changing the traveling path thereof, a lens (104) for focusing the laser light whose traveling path is changed by the mirror (102), a dispersing unit (106) for dispersing the laser light passed through the lens (104), and an amplitude mask (108) positioned between the dispersing unit (106) and the optical fiber (112), and having a transmission region in which the dispersed laser light is periodically transmitted to the optical fiber (112). The bandwidth of a long-period fiber grating can be adjusted by adjusting the size of a laser beam irradiated into an optical fiber (112). Also, amplitude masks can be easily manufactured at low cost and damage threshold power thereof is high.

18. 发明公开

EP1014124A2 Method of and device for optical fibre grating fabrication 有权
标题翻译：光纤光栅制造方法和装置
公开(公告)号：EP1014124A2
公开(公告)日：2000-06-28
申请号：EP99125282.6
申请日：1999-12-18
申请人： OTC Optical Technologies Center
发明人： Boschis, Laura , Emelli, Enrico , Rossotto, Oriana , Tallone, Luigi
IPC分类号： G02B6/16
CPC分类号： G02B6/02138 , G02B6/02085 , G02B6/02142 , G02B6/02152
摘要： An optical fibre (F) is sequentially submitted to a first and a second exposure to the grating writing radiation. The first exposure (Fig. 1) is performed by positioning the fibre (F) in proximity of a phase mask (3), so as to expose the same fibre (F) to a radiation of which the intensity is spatially modulated by the interference fringes generated by the phase mask (3) itself. The second exposure (Fig. 2) is performed with the fibre spaced apart from the phase mask (3) in the propagation direction of the writing radiation (1) by a sufficient distance in order the radiation incident on the fibre (F) is substantially defined by the first diffraction orders generated by the phase mask (3) in a situation in which there is basically no reciprocal interference among said first orders.
摘要翻译：光纤（F）依次经受对光栅写入辐射的第一次和第二次曝光。通过将光纤（F）定位在相位掩模（3）附近来执行第一次曝光（图1），以便将相同光纤（F）暴露于其强度由干涉空间调制的辐射由相位掩模（3）自身产生的条纹。利用纤维在写入辐射（1）的传播方向上与相位掩膜（3）间隔开足够距离来执行第二次曝光（图2），以便入射到光纤（F）上的辐射基本上由在相位掩模（3）产生的第一衍射级在所述第一级之间基本上不存在相互干涉的情况下定义。

19. 发明公开

EP0974853A1 Method for producing chirped in-fibre bragg grating 有权
标题翻译：一种用于在光纤制造布拉格光栅，其周期变化的位置处理
公开(公告)号：EP0974853A1
公开(公告)日：2000-01-26
申请号：EP99114094.8
申请日：1999-07-20
申请人： Hoshino, Hiroyuki
发明人： Hoshino, Hiroyuki
IPC分类号： G02B6/293
CPC分类号： G02B6/29317 , G02B6/02085 , G02B6/02142 , G02B6/02147 , G02B6/02152 , G02B6/0229
摘要： Disclosed is a method for producing a chirped in-fibre Bragg grating, in which an interval between gratings varies continously depending on a location of the gratings observed along an optical fibre (2), comprising a first step of winding the optical fibre in a spiral groove formed around a conical bobbin (1) which is shaped in a frustrum of a right circular cone having a predetermined vertex angle and a height between predetermined first and second diameters, and a second step of irradiating the optical fibre wound on the conical bobbin with ultraviolet rays (6) at every crossing of the optical fibre with a predetermined number of uniformly distributed generating lines of the conical bobbin, each extending radially on the surface of the conical bobbin from an imaginary vertex thereof, for modifying the refractive index of a core of the optical fibre to form the grating at the every crossing.
摘要翻译：公开的是沿光纤-观察光栅用于产生线性调频纤维内布拉格光栅，其中在光栅之间距离发生变化汽车无取决于的位置的方法（2）包括以螺旋缠绕所述光纤的第一步骤槽周围的圆锥形线轴（1）所有其在正圆锥的平截形的，具有预定的顶角和预定的第一和第二适当直径之间的高度，以及照射该光纤缠绕在与圆锥形线轴的第二步骤中形成超紫外线（6）在光纤的每个交叉点上带一致的预定数量的分布式圆锥形线轴的生成线，每条径向锥形筒管的表面上从在假想顶点上延伸，用于修改的芯的折射率光纤的以在每一个交叉光栅。

20. 发明公开

EP0865621A1 VARIABLE PERIOD AMPLITUDE GRATING MASK AND METHOD FOR USE 失效
标题翻译：面具用句VERANDERLICHER，幅度和它们的使用方法GRID
公开(公告)号：EP0865621A1
公开(公告)日：1998-09-23
申请号：EP97936316.0
申请日：1997-07-29
申请人： CORNING INCORPORATED
发明人： COOK, Thomas, A. , MODAVIS, Robert, A.
IPC分类号： G02B6 , G02B5 , G02F1
CPC分类号： G02B6/02152 , G02B6/02138 , G02B6/02142
摘要： A variable period amplitude grating mask (10) for use in making a long period Bragg grating is realized by a helically coiled spring (14). Stretching or compressing the spring changes the periodicity of the mask (10). A photosensitive optical waveguide (100), planar or fiber, is positioned within the spring coils (16) along the major axis of the spring (14). Actinic radiation is incident on the masked waveguide, and induces an index of perturbation in the waveguide having the periodicity of the mask. Different spring coil sizes and/or orientation of the waveguide respect to the mask provide linear or nonlinear (chirped) grating periods.

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