Assertion: erbium's use | /r/CapableOf | call for c-band amplifiers
Facets:
value: from ~1565 nm
type: OTHER
value: from ~1528
type: TEMPORAL
Source sentences:
text: Typical use of EDFA in telecommunications calls for C-band amplifiers ( from ~1528 nm to ~1565 nm) or L-band amplifiers (from ~1565 nm to ~1605 nm).