公开(公告)号：US5613023A

公开(公告)日：1997-03-18

申请号：US510269

申请日：1995-08-02

申请人： Jean Guillon ,  David Macia ,  Isabelle Riant ,  Pierre Sansonetti

发明人： Jean Guillon ,  David Macia ,  Isabelle Riant ,  Pierre Sansonetti

IPC分类号： G02B5/18 ,  G02B6/02 ,  G02B6/124 ,  G02B6/293 ,  G02B6/34

CPC分类号： G02B6/022

摘要： To modify the longitudinal pitch distribution of a diffraction grating, longitudinal dimensional variation is imparted, over time, to a support along the entire length of a line on which said support carries, at least indirectly, a succession of diffraction elements of the grating. By way of example, the support is an auxiliary part on which an optical fiber is stuck, said fiber including said grating. An elongation coefficient dl/l represents the local relative value of dimensional variation. This value varies along said line. The invention is particularly applicable to making variable pitch light-refracting filters in optical fiber telecommunications systems.

摘要翻译： 为了改变衍射光栅的纵向间距分布，随着时间的推移，纵向尺寸变化沿着所述支撑件至少间接地承载一系列光栅衍射元件的线的整个长度被赋予支撑。 作为示例，支撑件是其上粘附有光纤的辅助部件，所述光纤包括所述光栅。 伸长系数dl / l表示尺寸变化的局部相对值。 该值在所述行上不同。 本发明特别适用于在光纤通信系统中制造可变间距光折射滤波器。

公开(公告)号：US06314221B1

公开(公告)日：2001-11-06

申请号：US09323136

申请日：1999-06-01

申请人： Isabelle Riant ,  Pierre Sansonetti

发明人： Isabelle Riant ,  Pierre Sansonetti

IPC分类号： G02B634

CPC分类号： G02B6/02119

摘要： It is shown that by modifying the photosensitivity profile it is possible to provide better adjustment of the characteristic curve of a filter, and in particular to eliminate a reflection peak that is present within the working band. The photosensitivity profile is inverted to a considerable extent. In practice, the core of the fiber has only 20% of photosensitive doping material compared with the quantity of photosensitive doping material present in the cladding of the fiber.

摘要翻译： 显示通过改变光敏度曲线，可以提供对过滤器的特性曲线的更好的调整，并且特别是消除存在于工作带内的反射峰。 光敏度曲线在相当程度上反转。 实际上，与纤维包层中存在的光敏掺杂材料的量相比，光纤的核心仅具有20％的光敏掺杂材料。

公开(公告)号：US06292606B1

公开(公告)日：2001-09-18

申请号：US09316396

申请日：1999-05-21

申请人： Isabelle Riant ,  Pierre Sansonetti

发明人： Isabelle Riant ,  Pierre Sansonetti

IPC分类号： G02B634

CPC分类号： G02B6/0208 ,  G02B6/02085 ,  G02B6/02119 ,  G02B6/03633 ,  G02B6/03694

摘要： To adjust the spectral band of an attenuating optical fiber, a section of the optical fiber is formed that has a sloping Bragg grating. To smooth the spectral band of the attenuation, it is shown that the filter section must be short. Independently of selectivity, the smoothing makes it possible to avoid distorting the filtered signal. The length of the filter section is preferably 0.7 mm.

摘要翻译： 为了调整衰减光纤的光谱带，形成具有倾斜布拉格光栅的光纤部分。 为了平滑衰减的谱带，显示滤波器部分必须短。 独立于选择性，平滑使得可以避免滤波信号的失真。 过滤器部分的长度优选为0.7mm。

公开(公告)号：US5732169A

公开(公告)日：1998-03-24

申请号：US577765

申请日：1995-12-22

申请人： Isabelle Riant ,  Pierre Sansonetti

发明人： Isabelle Riant ,  Pierre Sansonetti

IPC分类号： G02B5/28 ,  G02B5/18 ,  G02B6/00 ,  G02B6/02 ,  G02B6/293 ,  G02B6/34 ,  H01S3/10 ,  G02B6/28

CPC分类号： G02B6/29356 ,  G02B6/02076 ,  H01S3/10023 ,  H01S2301/04

摘要： The invention provides a Fabry-Perot filter for guided light, the filter comprising two Bragg gratings that follow each other along a common light guide, a gap being left between the two gratings, wherein the two gratings have respective different lengths. The invention is particularly applicable to optical fiber telecommunications systems.

摘要翻译： 本发明提供了一种用于引导光的法布里 - 珀罗滤波器，该滤波器包括沿着公共光导相互追随的两个布拉格光栅，两个光栅之间留有间隙，其中两个光栅具有各自不同的长度。 本发明特别适用于光纤通信系统。

公开(公告)号：US20070183048A1

公开(公告)日：2007-08-09

申请号：US10828205

申请日：2004-04-21

申请人： Isabelle Riant ,  Christian Belouet

发明人： Isabelle Riant ,  Christian Belouet

IPC分类号： G02B27/00

CPC分类号： B82Y20/00 ,  G02F1/3515 ,  G02F1/355 ,  G02F1/365 ,  G02F2201/307 ,  G02F2202/36 ,  G02F2203/055

摘要： A tunable optical filter comprising an index grating produced in a waveguide defining a longitudinal direction of propagation of an incident optical signal, said grating being defined by a plurality of optical parameters, is characterized in that the optical guide contains semiconductor nanoparticles and in that the index grating is made up of a refractive index variation in the guide that is at least partly induced by a Kerr effect linked to the 3rd order dielectric susceptibility (χ3) of said nanoparticles, at least one of said parameters of said index grating being modified by application of an optical control signal coupled into the guide and propagating longitudinally in said guide.

摘要翻译： 一种可调谐滤光器，包括在定义入射光信号的纵向传播方向的波导中产生的折射光栅，所述光栅由多个光学参数限定，其特征在于，所述光导体包含半导体纳米颗粒， 光栅由导向器中的折射率变化构成，该折射率变化至少部分地是通过与所述第二极性的第三级介质磁化率（chi ^{3）连接的克尔效应而引起的 纳米颗粒，所述索引光栅的所述参数中的至少一个通过施加耦合到所述引导件中并在所述引导件中纵向传播的光学控制信号来修改。}

公开(公告)号：US07095924B2

公开(公告)日：2006-08-22

申请号：US10869882

申请日：2004-06-18

申请人： Carlos De Barros ,  Marianne Molina ,  Isabelle Riant

发明人： Carlos De Barros ,  Marianne Molina ,  Isabelle Riant

IPC分类号： G02B6/34

CPC分类号： G02B6/02085 ,  G02B6/02095 ,  G02B6/14 ,  G02B6/29317

摘要： An optical filter comprises a first mode converter converting an incident light signal propagating in an incident mode into a signal propagating in a propagation mode LPnm of order higher than that of said incident mode; a second mode converter converting the light signal of higher propagation order LPnm into a signal propagating in the incident propagation mode; and a slanted Bragg grating disposed between said first and second mode converters and adapted to couple the higher propagation order light signal LPnm in back-propagation into said incident mode. The filter is applicable to flattening gain and to multiplexing DWDM signals.

摘要翻译： 光滤波器包括：将入射模式传播的入射光信号转换为以比所述入射模式高的传播模式LPnm传播的信号的第一模式转换器; 第二模式转换器将较高传播阶数LPnm的光信号转换为在入射传播模式中传播的信号; 以及设置在所述第一和第二模式转换器之间并适于将反向传播中的较高传播级光信号LPnm耦合到所述入射模式中的倾斜布拉格光栅。 滤波器适用于平坦化增益和复用DWDM信号。

公开(公告)号：US06954567B2

公开(公告)日：2005-10-11

申请号：US10423980

申请日：2003-04-28

申请人： Marianne Molina ,  Carlos De Barros ,  Isabelle Riant

发明人： Marianne Molina ,  Carlos De Barros ,  Isabelle Riant

IPC分类号： G02B6/12 ,  G02B6/124 ,  G02B6/26 ,  G02B6/34

CPC分类号： G02B6/02138 ,  G02B6/02085 ,  G02B6/12007 ,  G02B6/124 ,  G02B6/266

摘要： An optical filter composed of a concatenation of elementary filters consisting of chirped slanted Bragg gratings written on a continuous portion of an optical waveguide, characterized in that the various gratings in the concatenation have the same angle, identical lengths and a linear chirp.

摘要翻译： 由滤波器组成的滤波器组成，该滤波器由写入光波导的连续部分上的啁啾倾斜布拉格光栅组成，其特征在于，串联中的各种光栅具有相同的角度，相同长度和线性啁啾。

公开(公告)号：US20090041410A1

公开(公告)日：2009-02-12

申请号：US10566376

申请日：2004-09-29

申请人： Carlos De Barros ,  Lionel Provost ,  Xavier Bonnet ,  Isabelle Riant

发明人： Carlos De Barros ,  Lionel Provost ,  Xavier Bonnet ,  Isabelle Riant

IPC分类号： G02B6/26

CPC分类号： G02B6/02095 ,  G02B6/14

摘要： An optical device (D) is dedicated to the transformation of the propagation mode of optical signals. This device comprises at least a first mode converter (3) that is supplied with signals that are propagated in a first guided mode and that delivers the signals in a multimode fibre (4) partly in the first guided mode and partly in a second guided more of a higher order that the first. The multimode fibre (4) comprises at least first passive filtering means (R) which have the task of converting the first guided mode into at least one dissipative cladding mode in order to prevent or limit the propagation of the signals in this first guided mode while at the same time authorising the propagation of the signals having the second guided mode in the multimode fibre (4).

摘要翻译： 光学装置（D）专用于光信号的传播模式的变换。 该装置至少包括第一模式转换器（3），该第一模式转换器（3）被提供有以第一引导模式传播的信号，并且以多模光纤（4）部分地以第一引导模式传送信号，并部分地以第二导向 一个较高的阶数是第一个。 多模光纤（4）至少包括第一无源滤波装置（R），其具有将第一导模转换成至少一个耗散包层模式的任务，以便防止或限制在该第一导向模式中的信号的传播，同时 同时授权在多模光纤（4）中传播具有第二引导模式的信号。

公开(公告)号：US20050276541A1

公开(公告)日：2005-12-15

申请号：US11146123

申请日：2005-06-07

申请人： Valerie Girardon ,  Isabelle Riant ,  Xavier Bonnet ,  Alain Fradet ,  Herve Lefebvre

发明人： Valerie Girardon ,  Isabelle Riant ,  Xavier Bonnet ,  Alain Fradet ,  Herve Lefebvre

IPC分类号： G02B1/02 ,  G02B1/06 ,  G02B6/02 ,  G02B6/34

CPC分类号： G02B1/06 ,  G02B1/02 ,  G02B6/0239

摘要： The present invention consists in an optical device comprising an optical component and an optical medium with different refractive indices, said optical component being at least partly immersed in said optical medium, which device is characterized in that said optical medium contains a salt that is in the liquid state in the range of temperatures at which said optical component is used and stored, i.e. in a range of temperatures generally from −40° C. to +200° C. The optical component may in particular be a Bragg long-period grating (LPG) or a photonic crystal fiber.

摘要翻译： 本发明包括一种光学装置，其包括光学部件和具有不同折射率的光学介质，所述光学部件至少部分地浸没在所述光学介质中，该装置的特征在于所述光学介质包含位于 在所述光学部件被使用和存储的温度范围内，即在通常为-40℃至+ 200℃的温度范围内的液体状态。光学部件可以特别地是布拉格长周期光栅（ LPG）或光子晶体光纤。

公开(公告)号：US06859585B1

公开(公告)日：2005-02-22

申请号：US10601864

申请日：2003-06-24

申请人： Carlos De Barros ,  Lionel Provost ,  Marianne Molina ,  Isabelle Riant ,  Laurent Gasca

发明人： Carlos De Barros ,  Lionel Provost ,  Marianne Molina ,  Isabelle Riant ,  Laurent Gasca

IPC分类号： G02B6/02 ,  G02B6/34

CPC分类号： G02B6/02119 ,  G02B6/03633 ,  G02B6/03644 ,  G02B6/03694

摘要： An optical filter comprising a slanted Bragg grating inscribed in an optical fiber portion comprising a core having a refractive index n1 and a radius Rcore and a cladding having an average refractive index n2 lower than n1 and a radius Rcladding, the core and the cladding of the fiber being doped with a photosensitive dopant in the fiber portion comprising the Bragg grating, which filter is characterized in that, in the fiber portion comprising the Bragg grating, the photosensitivity of the cladding is greater than the photosensitivity of the core and the cladding includes an index step area having a refractive index n3 greater than n2 and less than n1, said index step area having a width L defined by an inside radius Rs1 greater than or equal to the radius Rcore of the core and an outside radius Rs2 less than or equal to the radius Rcladding of the cladding.

摘要翻译： 一种光学滤波器，包括内插在光纤部分中的倾斜布拉格光栅，该光纤部分包括具有折射率n1和半径Rcore的芯和具有低于n1的平均折射率n2的包层和半径Rcladding，芯和包层 纤维在包括布拉格光栅的光纤部分中掺杂有光敏掺杂剂，该滤光器的特征在于，在包含布拉格光栅的光纤部分中，包层的光敏性大于芯的光敏性，并且包层包括 具有大于n2且小于n1的折射率n3的折射率阶梯区域，所述折射台阶区域具有由大于或等于芯部的半径Rcore的内部半径Rs1和小于或等于的外部半径Rs2限定的宽度L 到包层的半径Rcladding。