OPTICAL AMPLIFIER AND OPTICAL AMPLIFICATION METHOD

OPTICAL AMPLIFIER AND OPTICAL AMPLIFICATION METHOD

An optical amplifier that amplifies a wavelength multiplexing optical signal includes a first rare-earth-doped fiber, a second rare-earth-doped fiber connected in series with the first rare-earth-doped fiber, an excitation light combiner that inputs core excitation light to any of a core of the firs...

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1. Verfasser: TAKESHITA, Hitoshi
Format: Patent
Sprache:eng
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BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
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creator TAKESHITA, Hitoshi
description An optical amplifier that amplifies a wavelength multiplexing optical signal includes a first rare-earth-doped fiber, a second rare-earth-doped fiber connected in series with the first rare-earth-doped fiber, an excitation light combiner that inputs core excitation light to any of a core of the first rare-earth-doped fiber and a core of the second rare-earth-doped fiber and inputs clad excitation light to a clad of the first rare-earth-doped fiber, the clad excitation light having a wavelength different from that of the core excitation light, and an optical filter that is arranged between the first rare-earth-doped fiber and the second rare-earth-doped fiber, and transmits the wavelength multiplexing optical signal and the core excitation light and blocks the clad excitation light.
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subjects BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
title OPTICAL AMPLIFIER AND OPTICAL AMPLIFICATION METHOD
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