# Erbium-doped waveguide amplifier
**Wikidata**: [Q11078212](https://www.wikidata.org/wiki/Q11078212)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Erbium-doped_waveguide_amplifier)  
**Source**: https://4ort.xyz/entity/erbium-doped-waveguide-amplifier


## References

1. Harmonized System