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：US20030202761A1

公开(公告)日：2003-10-30

申请号：US10406264

申请日：2003-04-04

Applicant: ALCATEL

Inventor： Cyril Ruilier ,  Sebastien Bigo ,  Jose Chesnoy ,  Pierre Sansonetti

IPC: G02B006/16

CPC classification number: G02B6/02014 ,  G02B6/02023 ,  G02B6/02271 ,  G02B6/0228 ,  G02B6/03644 ,  G02B6/29377 ,  H04B10/2525

Abstract: The fibre is adapted to compensation of the chromatic dispersion and chromatic dispersion slope of an optical fibre with negative chromatic dispersion. It has, in a propagation mode other than the fundamental mode, a positive chromatic dispersion and a negative chromatic dispersion slope. The fibre can be used in compensation dispersion modules or as line fibre, in transmission systems using line fibre with negative chromatic dispersion.

Abstract translation: 该光纤适用于补偿具有负色散的光纤的色散和色散斜率。 在基本模式以外的传播模式中，具有正色散和负色散斜率。 光纤可用于补偿色散模块或线路光纤，在使用带有负色散的线路光纤的传输系统中。

公开(公告)号：US20020122625A1

公开(公告)日：2002-09-05

申请号：US09849354

申请日：2001-05-07

Applicant: ALCATEL

Inventor： Laurent Berthelot ,  Isabelle Riant ,  Pierre Sansonetti

IPC: G02B006/34 ,  G02B006/16

CPC classification number: G02B6/278 ,  G02B6/02109 ,  G02B6/02138 ,  G02B6/022 ,  G02B6/29317

Abstract: The invention relates to polarization mode dispersion; writing index variations in a grating written in an optical fiber generates polarization mode dispersion. The invention proposes to compensate this polarization mode dispersion by mechanical curvature of the fiber. The invention provides a simple method of compensating polarization mode dispersion effectively and improving the performance of a grating written in a fiber; it applies in particular to Bragg gratings.

Abstract translation: 本发明涉及偏振模色散; 写在光纤中的光栅中的写入索引变化产生偏振模色散。 本发明提出通过光纤的机械曲率补偿该偏振模色散。 本发明提供了一种有效补偿偏振模色散并提高光纤中写入的光栅性能的简单方法; 它特别适用于布拉格光栅。