Loading AI tools
来自维基百科,自由的百科全书
掺铒光纤放大器(Erbium-doped fiber amplifier,简称EDFA),在单模石英光纤中掺入微量的铒离子,注入泵浦光使三价铒离子的亚稳态能级2I13/2与基态2I15/2能级发生电子居量反转(population inversion),从而在1550nm[1]的信号光通过时发生受激辐射将信号光放大的器件[2]。它的面世从根本上改变了光纤通信发展的格局[3][4]。
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.