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Erbium-doped fiber amplifier (EDFA)

This one was a huge advance it seems.
Video 4.
Erbium-doped fiber amplifier by Millennium Technology Prize
. Source.

Ancestors (14)

  1. Fiber optical amplifier
  2. Optical amplifier
  3. Fiber optic equipment
  4. Optical fiber
  5. Light
  6. Photon
  7. Elementary particle
  8. Subatomic particle
  9. Standard Model
  10. Particle physics
  11. Physics
  12. Natural science
  13. Science
  14. Home

Synonyms (1)