公开(公告)号：US07103250B1

公开(公告)日：2006-09-05

申请号：US11294224

申请日：2005-12-02

Applicant: Lu Zhang ,  Daniel Aloysius Nolan ,  Snigdharaj Kumar Mishra ,  Alexej Sysoliatin

Inventor： Lu Zhang ,  Daniel Aloysius Nolan ,  Snigdharaj Kumar Mishra ,  Alexej Sysoliatin

IPC: G02B6/26 ,  G02B6/42 ,  G02B6/02

CPC classification number: G02B6/0281 ,  C03B37/0253 ,  C03B37/02727 ,  C03B37/02763 ,  C03B2203/18 ,  C03B2205/20 ,  C03B2205/40 ,  C03B2205/56 ,  G01N21/648 ,  G01N21/7703 ,  G02B6/02 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03644

Abstract: An optical fiber (10) having a first section (10A) with little or no small-angle scattering (SAS) and a second section (10B) with an increased amount of SAS is disclosed. The optical fiber is formed by changing the draw temperature (TD) and/or the draw speed (VD) so as to induce index of refraction perturbations (P) at a core interface (40). The SAS optical fiber is useful in forming an evanescent optical fiber sensor (400), wherein the increased SAS enhances an evanescent wave portion (436) of a guided wave (434), which leads to increased sensitivity when measuring a property of a test medium (500).

Abstract translation: 公开了一种具有很少或不具有小角度散射（SAS）的第一部分（10A）和具有增加的SAS量的第二部分（10B）的光纤（10）。 光纤是通过改变拉伸温度（T SUB）和/或拉伸速度（V SUB）来形成的，以便引起折射率（P）在 核心接口（40）。 SAS光纤可用于形成渐逝光纤传感器（400），其中增加的SAS增强导波（434）的ev逝波部分（436），这导致测量测试介质的性质时灵敏度增加 （500）。

公开(公告)号：US07068943B2

公开(公告)日：2006-06-27

申请号：US10778979

申请日：2004-02-13

Applicant: Andrey E. Korolev ,  Dmitri V. Kuksenkov ,  Shenping Li ,  Daniel A. Nolan ,  Michael Sauer ,  Alexej Sysoliatin

Inventor： Andrey E. Korolev ,  Dmitri V. Kuksenkov ,  Shenping Li ,  Daniel A. Nolan ,  Michael Sauer ,  Alexej Sysoliatin

IPC: H04B10/12

CPC classification number: H04B10/2525

Abstract: The present invention provides devices and methods for dynamic dispersion compensation. According to one embodiment of the invention, a dispersion compensating device includes a negative dispersion fiber having an input configured to receive the optical signal, the negative dispersion fiber having a length and dispersion sufficient to remove any positive chirp from each wavelength channel of the optical signal, thereby outputting a negatively chirped optical signal; an amplifying device configured to amplify the negatively chirped optical signal; and a nonlinear positive dispersion fiber configured to receive the negatively chirped optical signal. The devices of the present invention provide broadband compensation for systems having a wide range of variable residual dispersions.

Abstract translation: 本发明提供了用于动态色散补偿的装置和方法。 根据本发明的一个实施例，色散补偿装置包括具有被配置为接收光信号的输入的负色散光纤，负色散光纤具有足以从光信号的每个波长信道去除任何正线性调频脉冲的长度和色散 从而输出负啁啾的光信号; 放大装置，被配置为放大所述负啁啾光信号; 以及配置成接收负啁啾光信号的非线性正色散光纤。 本发明的装置为具有宽范围的可变残余分散的系统提供宽带补偿。