4. Optical: systems and elements
  5. Optical amplifier
  6. Particular pumping type

Uh-Chan Ryu

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High-power and wide-band fiber optic light source

Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate

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Long-band optical fiber amplifier with enhanced power...

Optical: systems and elements – Optical amplifier – Particular pumping type
Reexamination Certificate

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Parallel optical fiber amplifier with high power conversion

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

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Profile ID: LFUS-PAI-P-2109145

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