Analytic Calculation of Absorption Efficiency for Double-Clad Fibers Using Modal Method

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概要

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• The absorption efficiency for circular or offset double-clad optical fibers is investigated with modal analysis method. First, calculate the number of all the propagating modes approximately using WKB method and derive the analytic formulas for calculating the number of propagating modes that can't be absorbed by active core. Then the absorption efficiency can be obtained analytically. Comparison of modal method with the ray optics method is made and the condition of using both methods is also discussed.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2005-01-15

著者

• Wang Zi

  School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China

• Xu Sheng

  School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China

関連論文

• Analytic Calculation of Absorption Efficiency for Double-Clad Fibers Using Modal Method

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