超长距离光纤传输在华北电网中的实验与应用

Test and application of the ultra long span fiber transmission in North China Electric Power Grid

超长距离光纤传输一直是华北电网实际遇到且亟待解决的问题。随着技术的发展和成熟,华北电网结合具体工程,在2005年采用了喇曼光纤放大(Raman PA)技术,安排了2.5 Gbit/s、无中继传输距离为207 km的实验电路。该电路投运后运行良好,并经过了现场测试,为华北电网实现超长距离的光纤传输取得了实际经验和数据。文章给出了实验电路、测试数据和建议,为业内人士提供参考及讨论。

The Ultra Long Span （ULS） optical transmission is an actually problem that needs to be solved in North China Power Grid. In 2005, a 2.5 Gbit/s ultra long span test transmission channel （ 207 km repeaterless system） based on Raman PA fiber amplifier was set up. Now, the test channel operated very well and the test data has been extracted. The paper gave an analysis ; the purpose is to provide a reference and discussion about it.