发明授权
- 专利标题: Optical communication system incorporating automatic dispersion compensation modules
- 专利标题(中): 包含自动色散补偿模块的光通信系统
-
申请号: US09252708申请日: 1999-02-18
-
公开(公告)号: US06370300B1公开(公告)日: 2002-04-09
- 发明人: Benjamin John Eggleton , Torben N. Nielsen , John A. Rogers , Thomas Andrew Strasser , Kenneth Lee Walker
- 申请人: Benjamin John Eggleton , Torben N. Nielsen , John A. Rogers , Thomas Andrew Strasser , Kenneth Lee Walker
- 主分类号: G02B634
- IPC分类号: G02B634
摘要:
In accordance with the invention, an optical communication system is provided with one or more automatic dispersion compensation modules. Each module has an adjustable dispersion element, a data integrity monitor and a feedback network whereby the monitor adjusts the dispersion element to optimize system performance. 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.