Optimal Design of Optically Gain-Clamped L-band Erbium-Doped Fiber Amplifier by Fiber Bragg Grating Method

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概要

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• We theoretically investigated the optimal design of optically gain-clamped (GC) L-band (1570–1610 nm) erbium-doped fiber amplifier (EDFA), in order to control the EDFA gain to ensure that the gain does not vary markedly in the presence of the add/drop of optical channels. It used a single fiber Bragg grating (FBG) on the input or output end of the erbium-doped fiber (EDF) to inject a portion of the amplified spontaneous emission (ASE) back into the system. The FBG center wavelengths ($\lambda_{\text{B}}$) at either 1565 or 1610 nm for optically gain-clamped operation of such L-band GC-EDFAs were examined. In addition, the different FBG bandwidths ($\Delta\lambda_{\text{B}}$) for such L-band GC-EDFAs were compared. From the good gain-clamping capability point of view, the input-end FBG of 1565 nm center wavelength together with 4 nm bandwidth is the best choice for obtaining large gain-clamping dynamic ranges of good channel gain variation ($\Delta G$) and fairly low noise figure characteristics.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2004-08-15

著者

• Liang Tsair-chun

  Department Of Electronic Communication Engineering National Kaohsiung Marine University

• HSU Shih

  Department of Electronic Engineering, Cheng Shiu University

• Liang Tsair-Chun

  Department of Electronic Communication Engineering, National Kaohsiung Marine University, Kaohsiung 811, Taiwan, Republic of China

関連論文

• Maximum-channel-number Investigation of Limiting-Amplified Multiwavelength Dispersion Compensator Incorporating Chirped Fiber Gratings
• Optimal Design of Optically Gain-Clamped L-band Erbium-Doped Fiber Amplifier by Fiber Bragg Grating Method
• Optimal Design of Optically Gain-Clamped L-band Erbium-Doped Fiber Amplifier by Fiber Bragg Grating Method

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