Assertion: erbium | /r/CapableOf | emit light
Facets:
value: at 1,550 nanometres
type: OTHER
Source sentences:
text: Since erbium absorbs and emits light at 1,550 nanometres, exactly in the middle of the fibre telecom band, it can be used to amplify the light in a device called an Erbium-Doped Fibre Amplifier (EDFA).
text: Since erbium absorbs and emits light at 1,550 nanometres, exactly in the middle of the fibre telecom band, it can be used to amplify the light in a device called an Erbium-Doped Fibre Amplifier (EDFA).