公开(公告)号：US20030059187A1

公开(公告)日：2003-03-27

申请号：US10244506

申请日：2002-09-17

Applicant: ALCATEL

Inventor： Xavier Andrieu ,  Anne Decaumont ,  Laurent Gasca

IPC: G02B006/22

CPC classification number: G02B6/03622 ,  G02B6/02033

Abstract: An optical fiber comprises a silica multimode optical core having a refractive index n1 and at least one polymer optical cladding having a refractive index n2, with n1>n2. It further comprises a heterogeneous polymer intermediate optical cladding situated between the multimode core and the optical cladding and having a refractive index substantially equal to the refractive index n1 of the multimode core.

Abstract translation: 光纤包括具有折射率n1的二氧化硅多模光纤芯和具有n1> n2折射率n2的至少一个聚合物光学包层。 它还包括位于多模芯和光学包层之间的异质聚合物中间光学包层，其折射率基本上等于多模芯的折射率n1。

公开(公告)号：US20040085623A1

公开(公告)日：2004-05-06

申请号：US10671482

申请日：2003-09-29

Applicant: ALCATEL

Inventor： Lionel Provost ,  Christian Simonneau ,  Isabelle Bongrand ,  Philippe Bousselet ,  Christine Moreau ,  Dominique Bayart ,  Laurent Gasca

IPC: H01S003/00

CPC classification number: H01S3/06708 ,  H01S3/06729 ,  H01S3/06754 ,  H01S3/094007

Abstract: An optical fiber amplifier is considered comprising a mono-mode core, a first cladding around said core and at least a further cladding around said first cladding while said first cladding includes a ring shaped active region doped with rare earth material surrounding said mono-mode core. Advantageously, the first cladding is designed with a radial refractive index following an almost continuous decreasing function for increasing radius. The use of a continuously decreasing refractive index for the cladding at the outer border of the ring shaped active medium optimize the efficiency of the coupling between the core and the cladding.

Abstract translation: 认为光纤放大器包括单模芯，围绕所述芯的第一包层和围绕所述第一包层的至少另一包层，而所述第一包层包括掺杂有围绕所述单模芯的稀土材料的环形有源区 。 有利地，第一包层被设计成具有径向折射率，跟随用于增加半径的几乎连续的减小函数。 在环形有源介质的外边界处对包层的连续降低的折射率的使用优化了芯和包层之间的耦合的效率。

公开(公告)号：US20020126974A1

公开(公告)日：2002-09-12

申请号：US10079876

申请日：2002-02-22

Applicant: ALCATEL

Inventor： Dominique Bayart ,  Florence Leplingard ,  Laurent Gasca

IPC: G02B006/22 ,  G02B006/26

CPC classification number: H01S3/06716 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/1698

Abstract: A fiber amplifier comprises an amplifying double-clad fiber (DCF). The fiber has a core having a first refractive index, an inner cladding surrounding the core and having a second refractive index lower than the first refractive index and an outer cladding surrounding the inner cladding. The core is doped with Erbium (Er) and co-doped with Ytterbium (Yb), and further co-doped with Cerium (Ce). The Ytterbium (Yb) enables pump energy transfer from Ytterbium (Yb) ions being in the excited state to Erbium (Er) ions being in the ground state (4I15/2). The Cerium enables a resonant energy transfer between the Erbium (Er) excited state (4I11/2) and Cerium (Ce) ground state (4F7/2). This leads to a lower population of the Erbium 4I11/2 state and thereby increases energy transfer from Ytterbium to Erbium.

Abstract translation: 光纤放大器包括放大双包层光纤（DCF）。 光纤具有具有第一折射率的芯，围绕芯并且具有低于第一折射率的第二折射率的内包层和围绕内包层的外包层。 芯掺杂有铒（Er）并与镱（Yb）共同掺杂，并进一步与铈（Ce）共掺杂。 镱（Yb）使得能够从处于激发态的镱（Yb）离子的能量转移到处于基态的铒（Er）离子（4I15 / 2）。 铈可以实现铒（Er）激发态（4I11 / 2）和铈（Ce）基态（4F7 / 2）之间的共振能量传递。 这导致较低的铒4I11 / 2状态，从而增加了从镱到铒的能量转移。

公开(公告)号：US20020063951A1

公开(公告)日：2002-05-30

申请号：US09993697

申请日：2001-11-27

Applicant: ALCATEL

Inventor： Oscar D'Almeida ,  Benoit Faure ,  Jean-Claude Rousseau ,  Laurent Gasca ,  Dominique Bayart

IPC: H01S003/00

Abstract: The invention relates to an optical fiber amplifier (OFA) having a controllable heating system for adjusting and stabilizing the temperature of a fiber, wherein the heating system comprises a heat-generating fiber coating (TC) that has an electrical connection for applying a heating voltage or injecting a heating current (I1, I2) for the purpose of heat generation, wherein the heat-generating fiber coating (TC) surrounds at least a part of the fiber (OF), and also a method therefor.

Abstract translation: 本发明涉及一种具有用于调节和稳定纤维温度的可控加热系统的光纤放大器（OFA），其中该加热系统包括一个发热纤维涂层（TC），该发热纤维涂层具有用于施加加热电压 或为了产生热而注入加热电流（I1，I2），其中发热纤维涂层（TC）包围至少一部分纤维（OF），以及其方法。

公开(公告)号：US20040096172A1

公开(公告)日：2004-05-20

申请号：US10671775

申请日：2003-09-29

Applicant: ALCATEL

Inventor： Isabelle Bongrand ,  Laurent Gasca ,  Gilles Melin ,  Ambre Peyrilloux ,  Lionel Provost ,  Pierre Sansonetti

IPC: G02B006/02

CPC classification number: G02B6/02347 ,  G02B6/02361 ,  G02B6/105

Abstract: The object of the present invention is to design a photonic crystal fiber with high birefringence property such to preserve the polarization of optical signals transmitted through such fiber without implying to high manufacturing cost. For that a photonic crystal fiber is designed having at least the inner rows of the used longitudinal holes surrounding its guiding core following a parallelogram shape arrangement. This leads to a photonic crystal with an at most two fold rotational symmetry about a longitudinal symmetry. It is a particularly advantageous way to introduce a high birefringence which will guarantee to retain the polarisation of the transmitted optical signals.

Abstract translation: 本发明的目的是设计具有高双折射特性的光子晶体光纤，以保持通过这种光纤传输的光信号的偏振，而不意味着高的制造成本。 为此，光子晶体光纤被设计成具有围绕其引导核心的所使用的纵向孔的至少内排，遵循平行四边形形状布置。 这导致关于纵向对称性具有至多两倍旋转对称的光子晶体。 引入高双折射的特别有利的方式将保证保持透射光信号的偏振。

公开(公告)号：US20040062499A1

公开(公告)日：2004-04-01

申请号：US10643937

申请日：2003-08-20

Applicant: ALCATEL

Inventor： Laurent Gasca ,  Gilles Melin ,  Xavier Rejeaunier ,  Simon Lempereur ,  Christine Moreau ,  Anne Fleureau

IPC: G02B006/20 ,  C03B037/022

CPC classification number: G02B6/02314 ,  C03B37/01205 ,  C03B2203/14 ,  C03B2203/42

Abstract: An optical fiber with microstructures comprises a plurality of capillary tubes disposed around a central rod and including a self-cleaning layer including molecules able to react with hydroxyl molecules to produce volatile gaseous substances.

Abstract translation: 具有微结构的光纤包括围绕中心棒设置的多个毛细管，并且包括自清洁层，其包括能够与羟基分子反应以产生挥发性气态物质的分子。

公开(公告)号：US20030175003A1

公开(公告)日：2003-09-18

申请号：US10387565

申请日：2003-03-14

Applicant: ALCATEL

Inventor： Laurent Gasca ,  Alain Pastouret ,  Christine Moreau ,  Pascal Baniel ,  Christian Belouet

IPC: G02B006/16

CPC classification number: C03C14/006 ,  C03C3/06 ,  C03C4/0071 ,  C03C4/10 ,  C03C13/04 ,  C03C13/045 ,  C03C14/004 ,  C03C2201/20 ,  C03C2201/28 ,  C03C2201/31 ,  C03C2201/32 ,  C03C2201/3411 ,  C03C2201/3476 ,  C03C2201/3482 ,  C03C2201/36 ,  H01S3/06716 ,  H01S3/1616 ,  H01S3/169

Abstract: The present invention concerns an optical guide (100) comprising an amplifier medium including: a core (10) in a main matrix of a transparent material, the main matrix containing particules (1, 2), each particule being formed of a submicronic matrix distinct from the main matrix and doped by an active metal element, an external guiding cladding (11) in contact with the core (10). The size of the particules (1, 2) is smaller than 20 nm. The present invention also concerns a method for producing this guide.

Abstract translation: 本发明涉及一种包括放大器介质的光导（100），该放大器介质包括：在透明材料的主矩阵中的芯（10），所述主矩阵包含微粒（1,2），每个微粒由亚微米矩阵形成 从主矩阵并由有源金属元件掺杂，与芯（10）接触的外部引导包层（11）。 颗粒（1,2）的尺寸小于20nm。 本发明还涉及一种用于生产该指南的方法。