Numerical Simulation of Erbium-Ytterbium Co-doped Waveguide Amplifiers by ADI-FDTD

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2003, Vol. 20 ›› Issue (5): 443-446.

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Numerical Simulation of Erbium-Ytterbium Co-doped Waveguide Amplifiers by ADI-FDTD

CHEN Hai-yan^1,2, DAI Ji-zhi¹, HUANG Xiu-jiang¹, LIU Yong-zhi¹

1. National Key Laboratory of Broad-Band Optical Fiber Transmission and Communication Network Technology, College of Opto-electronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;
2. School of Science, Jianghan Petroleum University, Jingzhou 434023, China

Received:2002-09-10 Revised:2002-12-03 Online:2003-09-25 Published:2003-09-25

Abstract

Abstract: A new and simple numerical computational method simulating the gain characteristics of erbium and ytterbium co-doped phosphate glass waveguide amplifier(EYCDWA)is presented. This algorithm is a combination of the iterative procedure and the Finite-Differences Time-Domain based on Alternating-direction Implicit Method(ADI-FDTD), using ADI-FDTD calculating the normalized field intensity distribution of pump and signal and an iterative procedure studying the power propagation equations of the pump and signal. Numerical results demonstrate that the increase of the length and Er³⁺ concentration is two main approaches to improve the gain of EYCDWA, Yb³⁺ plays an energy transform role and 1~4 ratio of Yb/Er is better.

Key words: optical waveguide amplifier, ADI-FDTD, numerical simulation

CLC Number:

TN252

CHEN Hai-yan, DAI Ji-zhi, HUANG Xiu-jiang, LIU Yong-zhi. Numerical Simulation of Erbium-Ytterbium Co-doped Waveguide Amplifiers by ADI-FDTD[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2003, 20(5): 443-446.

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Numerical Simulation of Erbium-Ytterbium Co-doped Waveguide Amplifiers by ADI-FDTD

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