Assertion: fiber amplifier | /r/HasProperty | available
Facets:
Source sentences:
text: Fiber amplifiers for the second telecom window around 1.3 μm are also available , but have a lower performance compared with that of erbium-doped amplifiers.
text: Before such fiber amplifiers were available, there was no practical method for amplifying all channels e.g. between long fiber spans of a fiber-optic link: one had to separate all data channels, detect and amplify them electronically, optically resubmit and again combine them.