erbium-doped fiber amplifier
E287664
An erbium-doped fiber amplifier is an optical device that boosts the strength of light signals in fiber-optic communication systems by using erbium ions in the fiber core to provide efficient, low-noise signal amplification.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Erbium-doped fiber amplifier | 1 |
| erbium-doped fiber amplifier canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2688914 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: erbium-doped fiber amplifier Context triple: [David N. Payne, notableConcept, erbium-doped fiber amplifier]
-
A.
chirped pulse amplification
Chirped pulse amplification is a laser technique that stretches, amplifies, and then recompresses ultrashort light pulses to achieve extremely high peak powers without damaging optical components.
-
B.
FERMI free-electron laser
FERMI is a state-of-the-art free-electron laser facility in Italy that provides ultra-bright, tunable X-ray and ultraviolet light pulses for advanced research in physics, chemistry, and materials science.
-
C.
Laser
Laser is the costumed mascot representing Lasell University at its athletic events and campus activities.
-
D.
Maser
Maser is a small town in the Veneto region of northern Italy, noted for its Renaissance architecture and association with the architect Andrea Palladio.
-
E.
1000BASE-LX
1000BASE-LX is a Gigabit Ethernet standard that uses long-wavelength laser over fiber optic cabling to provide 1 Gbit/s network links over extended distances.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: erbium-doped fiber amplifier Target entity description: An erbium-doped fiber amplifier is an optical device that boosts the strength of light signals in fiber-optic communication systems by using erbium ions in the fiber core to provide efficient, low-noise signal amplification.
-
A.
chirped pulse amplification
Chirped pulse amplification is a laser technique that stretches, amplifies, and then recompresses ultrashort light pulses to achieve extremely high peak powers without damaging optical components.
-
B.
FERMI free-electron laser
FERMI is a state-of-the-art free-electron laser facility in Italy that provides ultra-bright, tunable X-ray and ultraviolet light pulses for advanced research in physics, chemistry, and materials science.
-
C.
Laser
Laser is the costumed mascot representing Lasell University at its athletic events and campus activities.
-
D.
Maser
Maser is a small town in the Veneto region of northern Italy, noted for its Renaissance architecture and association with the architect Andrea Palladio.
-
E.
1000BASE-LX
1000BASE-LX is a Gigabit Ethernet standard that uses long-wavelength laser over fiber optic cabling to provide 1 Gbit/s network links over extended distances.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
fiber amplifier
ⓘ
optical amplifier ⓘ telecommunications equipment ⓘ |
| advantage |
ability to amplify multiple wavelengths simultaneously
ⓘ
broad amplification bandwidth ⓘ compatibility with silica fiber ⓘ high gain ⓘ low noise figure ⓘ |
| amplificationMechanism | stimulated emission ⓘ |
| canBeConfiguredAs |
booster amplifier
ⓘ
in-line amplifier ⓘ pre-amplifier ⓘ |
| component |
erbium-doped fiber
ⓘ
gain-flattening filter ⓘ monitor photodiode ⓘ optical isolator ⓘ pump laser ⓘ tap coupler ⓘ wavelength-division multiplexer ⓘ |
| developedFor | repeaterless optical transmission ⓘ |
| dopingConcentrationRange | hundreds to thousands of ppm of erbium ⓘ |
| enables |
all-optical amplification
ⓘ
long-distance transmission without optical-electrical-optical conversion ⓘ |
| gainControlMethod |
pump power adjustment
ⓘ
variable optical attenuator ⓘ |
| gainMediumState | population inversion ⓘ |
| gainSpectrumShape | non-flat ⓘ |
| noiseFigureRange | 3–6 dB ⓘ |
| operatesInWavelengthBand |
C-band
ⓘ
L-band ⓘ |
| pumpConfiguration |
bi-directional pump
ⓘ
co-propagating pump ⓘ counter-propagating pump ⓘ |
| pumpedBy | laser diode ⓘ |
| pumpingWavelength |
1480 nm
ⓘ
980 nm ⓘ |
| replacedTechnology | electronic regenerators in many links ⓘ |
| requires | gain flattening for WDM applications ⓘ |
| requiresMedium | silica glass fiber ⓘ |
| typicalGain | 20–40 dB ⓘ |
| typicalOutputPower | +10 to +23 dBm ⓘ |
| typicalSignalWavelength | 1550 nm ⓘ |
| typicalSignalWavelengthRange |
1530–1565 nm
ⓘ
1570–1605 nm ⓘ |
| usedIn |
dense wavelength-division multiplexing systems
ⓘ
fiber-optic communication system ⓘ long-haul optical networks ⓘ submarine optical cables ⓘ |
| usesActiveMedium | erbium-doped optical fiber ⓘ |
| usesDopantElement | erbium ⓘ |
| usesDopantIon | Er3+ ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: erbium-doped fiber amplifier Description of subject: An erbium-doped fiber amplifier is an optical device that boosts the strength of light signals in fiber-optic communication systems by using erbium ions in the fiber core to provide efficient, low-noise signal amplification.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: erbium-doped fiber amplifier