The technology of end-pumped and side-pumped of Yb doped double clad fiber laser are dissertated.The trend and applications of the Yb doped double clad fiber laser are analyzed.

• 综合论述了掺镱双包层光纤激光器的端面泵浦和侧面泵浦耦合技术，并分析了掺镱双包层光纤激光器的发展趋势及应用前景。