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2000 nian qian de tiao zhan chang tu tong xin wang zhong de guang fang da
Author(s): 
Pages: 58-59
Year: Issue:  4
Journal: Optical Fiber & Electric Cable and Their Applications

Keyword:  长途通信网光放大器掺饵光纤放大器同步数字体系电信公司新技术传输系统性竞争挑战交换系统;
Abstract: <正> 对传输容量日益强烈的需求正促使电信厂商向千兆赫应用领域发展。由于现行的新技术,电信公司在以最低价格的交换系统和传输系统提供宽带服务方面正面临着全球性竞争。引入同步数字体系(SDH)之后,光纤系统目前正向10Gb/s快速发展,其中掺铒光纤放大器(EDFA)起着关键作用。
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