公开(公告)号：US20030202745A1

公开(公告)日：2003-10-30

申请号：US10423980

申请日：2003-04-28

Applicant: ALCATEL.

Inventor： Marianne Molina ,  Carlos De Barros ,  Isabelle Riant

IPC: G02B006/34

CPC classification number: G02B6/02138 ,  G02B6/02085 ,  G02B6/12007 ,  G02B6/124 ,  G02B6/266

Abstract: An optical filter (20) composed of a concatenation of elementary filters (10) consisting of chirped slanted Bragg gratings written on a continuous portion of an optical waveguide, characterised in that the various gratings in the concatenation have the same angle, identical lengths and a linear chirp.

Abstract translation: 一种由写入光波导的连续部分的由啁啾的倾斜布拉格光栅组成的基本滤波器（10）的级联构成的滤光器（20），其特征在于，级联中的各种光栅具有相同的角度，相同的长度和 线性啁啾

公开(公告)号：US20030133653A1

公开(公告)日：2003-07-17

申请号：US10330145

申请日：2002-12-30

Applicant: ALCATEL

Inventor： Carlos De Barros ,  Hedi Labidi ,  Xavier Bonnet ,  Isabelle Riant

IPC: G02B006/26

CPC classification number: G02B6/29352 ,  G02B6/02095 ,  G02B6/29319 ,  G02B6/29356 ,  G02B2006/12107

Abstract: An optical filter includes a coupler having n output branches and an input branch receiving an input signal whose spectrum comprises a comb of wavelengths periodically spaced by a spacing eP. Each of the n output branches is coupled to a waveguide including two or more cascaded copropagated coupling components. Each of the n branches produces an output signal whose spectrum comprises a comb of wavelengths periodically spaced by a spacing equal to n times the spacing eP. Each of the n output signal spectra is complementary to the others.

Abstract translation: 光学滤波器包括具有n个输出分支的耦合器和接收输入信号的输入分支，该输入信号的频谱包括以间隔eP周期间隔的波长梳。 n个输出分支中的每一个耦合到包括两个或更多个级联的共同传播的耦合部件的波导。 n个分支中的每一个产生输出信号，其频谱包括周期性间隔等于间隔eP的n倍的间隔的波长梳。 n个输出信号光谱中的每一个与其他信号光谱互补。

公开(公告)号：US20040213513A1

公开(公告)日：2004-10-28

申请号：US10829180

申请日：2004-04-22

Applicant: ALCATEL

Inventor： Carlos De Barros ,  Isabelle Riant

IPC: G02B006/26

CPC classification number: G02B6/29394 ,  G02B6/03644 ,  G02B6/14 ,  G02B6/29319 ,  G02B6/29344

Abstract: An optical device (D) is dedicated to transforming the propagation mode of optical signals. The device comprises mode transformation means (3-5) associated with a multimode fiber (2) and comprising first and second mode converters (3and 5) coupled to each other by a multimode fiber portion (4) of selected length (L). The first converter (3) is fed with signals propagating in a first mode and it delivers the signals to the fiber portion (4) in part in the first mode and in part in a second mode of order higher than the first, and the second converter (5) is arranged to cause the signals in the first and second modes to interfere so that on outlet therefrom they present a selected spectral spacing.

Abstract translation: 光学装置（D）专用于变换光信号的传播模式。 该设备包括与多模光纤（2）相关联的模式转换装置（3-5），并且包括通过所选长度（L）的多模光纤部分（4）彼此耦合的第一和第二模式转换器（3和5）。 第一转换器（3）馈送以第一模式传播的信号，并且将信号部分地以第一模式传送到光纤部分（4），并且部分地以比第一模式高的第二模式，第二转换器 转换器（5）被布置成使得第一和第二模式中的信号干涉，使得在其出口处呈现选定的光谱间隔。

公开(公告)号：US20030194182A1

公开(公告)日：2003-10-16

申请号：US10412301

申请日：2003-04-14

Applicant: ALCATEL

Inventor： Hedi Labidi ,  Carlos De Barros ,  Herve Loury ,  Xavier Bonnet ,  Isabelle Riant ,  Jean-Jacques Guerin

IPC: G02B006/34

CPC classification number: G02B6/02195 ,  G02B6/02095 ,  H01S3/005 ,  H01S3/06754 ,  H01S2301/04 ,  H01S2301/06 ,  H04B10/2941

Abstract: A tuneable optical fibre comprising a long-period Bragg grating (5) written in a portion of an optical waveguide (10) comprising a core and an optical cladding (11), characterised in that the portion of the waveguide comprising the grating (5) is at least partially immersed in an external environment consisting of two distinct sections, a first section (1) whose refractive index is higher than that of the optical cladding (11) and a second section (2) whose refractive index is lower than that of the optical cladding (11), the long-period grating being at least partially immersed in one of the said sections so as to almost independently tune the wavelength and/or the contrast of the spectral response of the filter.

Abstract translation: 一种可调谐光纤，包括写入光纤的一部分（ 10 ）的长周期布拉格光栅（ 5 ），其包括芯和光学包层（ 其特征在于，包括光栅的波导部分（ 5 ）至少部分地浸没在由两个不同部分组成的外部环境中，第一部分（ 1 ），其折射率高于光学包层的折射率（ 11 ）和第二部分（ 2 ），其折射率低于 光学包层（ 11 ），长周期光栅至少部分地浸没在所述部分之一中，以便几乎独立地调节滤光器的光谱响应的波长和/或对比度。