Use of the Coaxial-Core Profile in the Erbium-Doped Fiber Amplifier for Self-Regulation of Gain Spectrum (Joint Special Issue on Recent Progress in Optoelectronics and Communications)

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概要

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• Coaxial-core erbium-doped fiber amplifiers (EDFA's) having a property of self-regulated gain spectrum are developed. The operation of a coaxial-core EDFA is based on the partial separation of the light paths for different wavelength channels in the directionally-coupled waveguides of a coaxial-core geometry. The degree of channel equalization depends on the geometrical and optical parameters of the coaxial-core EDFA and on relative channel power levels. A numerical analysis based on the coupled-mode theory and on the rate equation shows that, under fully optimized conditions, a coaxial-core EDFA provides equalization rates in excess of -0.4 dB per dB of input-power imbalance in the case with two WDM channels. A cascade experiment demonstrates the effect of coaxial-core EDFA's toward channel-power equalization in fiber links with a small number of WDM channels.

• 社団法人電子情報通信学会の論文
• 1999-08-25

著者

• Lee J

  Wonkwang University

• OH Kyunghwan

  Department of Information and Communications, Kwangju Institute of Science and Technology

• LEE Jaedeuk

  Department of Information and Communications, Kwangju Institute of Science and Technology

• SONG Hugh

  Department of Information and Communications, Kwangju Institute of Science and Technology

• Oh Kyunghwan

  Department Of Information And Communications Kwangju Institute Of Science And Technology

• Song H

  Hongik Univ. Seoul Kor

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• Use of the Coaxial-Core Profile in the Erbium-Doped Fiber Amplifier for Self-Regulation of Gain Spectrum (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
• Use of the Coaxial-Core Profile in the Erbium-Doped Fiber Amplifier for Self-Regulation of Gain Spectrum (Joint Special Issue on Recent Progress in Optoelectronics and Communications)

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