4. Optical: systems and elements
  5. Optical amplifier
  6. Optical fiber

Young-Geun Han

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Erbium-doped optical fiber having gratings formed therein...

Optical: systems and elements – Optical amplifier – Optical fiber
Reexamination Certificate

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Tunable dispersion compensator for an optical transmission...

Optical waveguides – With optical coupler – Input/output coupler
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Tunable dispersion compensator for optical communication system

Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2475854

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