Gain Characteristics of the Er-doped Fiber with Splicing Points

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  • 融着点をもつEr^<3+>ドープファイバの増幅特性について
  • ユウチャクテン オ モツ Er^<3+> ドープ ファイバ ノ ゾウフク トクセイ ニツイテ
  • ユウチャクテン オ モツ Er3 + ドープ ファイバ ノ ゾウフク トクセイ

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Abstract

This paper proposes the splice effects in Er-doped fibers (EDF) with 40m length for the gain characteristics of an EDFA. The used EDFA is consisted of forward pumping at 1.48μm, and the center wave length of the used signal is 1.5573μm. In our experiments, the maximum launching pumping power is about 23mW and the maximum gain is about 26dB. The gain characteristics of the EDFA using EDF with one or two splice points will be compared with ones of the EDFA with no splice point Er-doped fiber. The results show that an amplifier using a spliced EDF having a spliced point near the fiber output show less gain than that having the splicing point far from the output.

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