Source: cirosantilli/erbium-doped-fiber-amplifier
= Erbium-doped fiber amplifier
= EDFA
{synonym}
{title2}
This one was a huge advance it seems.
\Video[https://www.youtube.com/watch?v=v_Xkn14XWcQ]
{title=Erbium-doped fiber amplifier by <Millennium Technology Prize>}