Comparison of end-pumped and multi-point pumped Yb3+-doped gain guided and index antiguided fiber laser

End-pumped and multi-point pumped Yb3+-doped gain guided and index antiguided (GG+IAG) fiber laser are analyzed by solving the rate equations and 3-D thermal conduction equations. Simulation results show that the multi-point pumped scheme can provide lower operating temperature and better temperature uniformity. Meanwhile, fabrication complexity, loss resulted from pump point should be taken into consideration in the practical design. Crown Copyright (c) 2012 Published by Elsevier Ltd. All rights reserved