公开(公告)号：EP1073221A1

公开(公告)日：2001-01-31

申请号：EP00306078.7

申请日：2000-07-17

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Eggleton, Benjamin John ,  Strasser, Thomas Andrew ,  Walker, Kenneth Lee ,  Rogers, John A

IPC: H04B10/18

CPC classification number: H04B10/2519 ,  H04B2210/252

Abstract: A high speed optical communication system (≥ 10Gbit/s) is compensated for temperature variation by providing it with one or more automatic dispersion compensation modules (20). Each module (20) has an adjustable dispersion element (30), a data integrity monitor (31) and a feedback network (32) whereby the monitor (31) adjusts the dispersion element (30) to compensate for temperature variation. In a preferred embodiment the dispersion compensating modules comprise chirped fiber Bragg gratings in which the chirp is induced in the grating by passing a current along distributed thin film heaters deposited along the length of the fiber. The magnitude of the applied current determines the dispersion of the grating. A data integrity monitor is configured to sense the integrity of transmitted data and to provide electrical feedback for controlling the current applied to the grating.

Abstract translation: 一种高速光通信系统（≥10Gbit / s的）是通过提供其与一个或多个自动色散补偿模块（20），用于温度变化补偿。 每个模块（20）具有可调节的分散元件（30），数据完整性监视器（31）和一个反馈网络（32），由此在监视器（31）中的分散体元件（30）bestimmt以补偿温度变化。 在优选实施例的色散补偿模块包括其中啁啾在光栅通过使沿所述光纤的长度沉积的电流沿分布式薄膜加热器诱导啁啾光纤布拉格光栅。 目前应用确定性的地雷的大小光栅的分散。 数据完整性监视器配置为感应跨mitted数据的完整性，并为控制电流应用到光栅提供电反馈。