光ファイバアンプ　波長多重伝送用ハイブリッドＥｒ添加光ファイバ増幅器

角井 素貴, 柏田 智徳, 中里 浩二, 大西 正志, 重松 昌行, 西村 正幸

doi:10.2184/lsj.25.158

光ファイバアンプ　波長多重伝送用ハイブリッドＥｒ添加光ファイバ増幅器

DOI Web Site

角井素貴

住友電気工業株式会社横浜研究所
柏田智徳

住友電気工業株式会社横浜研究所
中里浩二

住友電気工業株式会社横浜研究所
大西正志

住友電気工業株式会社横浜研究所
重松昌行

住友電気工業株式会社横浜研究所
西村正幸

住友電気工業株式会社横浜研究所

書誌事項

タイトル別名

Optical Fiber Amplifiers and Their Applications. Hybrid Er-Doped Fiber Amplifiers for Wavelength-Division Multiplexing Transmission Systems.

この論文をさがす

CiNii Books

説明

Erbium-doped fiber amplifier (EDFA) featuring a spectrally flattened gain is considered to be one of the most important key devices for the wavelength-division multiplexing (WDM) transmission systems. For this purpose, we have developed hybrid EDFs composed of Al doped EDF and P/Al co-doped EDF and examined their characteristics comparing with the conventional EDFs and those with passive gain equalizers. As a result, hybrid EDFs have been shown to exhibit both a flat gain and high pumping efficiency, but their noise characteristics tends to be worse than conventional EDF configurations. Thus a midway isolator should be inserted. As a result of the design optimization, three-section hybrid EDF configuration has been proposed, and three types of EDFAs have been developed employing this configuration for use as in-line amplifiers or preamplifiers. All types exhibit the passband spanning about 15nm.