[1] J. P. Koplow,D. A. V. Kliner,L. Goldberg. Single-mode operation of a coiled multimode fiber amplifier [J]. Opt. Lett.,2000,25(7):442-444
[2] D. A. V. Kliner,J. P. Koplow. Power scaling of diffraction limited fiber sources [C]. SPIE,2005,5647:550-556
[4] J. A. Alvarez-Chavez,B. J. Grudinin,J. Nilsson et al.. Mode selection in high power cladding pumped fiber lasers with tapered section [C]. CLEO’99,1999:247-248
[6] J. Limpert,H. Zellmer,A. Tünnermann et al.. Suppression of high order modes in a multimode fiber amplifier using efficient gain-loss-management (GLM) [C]. Advanced Solid-State Lasers,2002,Paper MB20. 1:112-114
[7] M. Hotoleanu,M. Sderlund,D. Kliner et al.. High order modes suppression in large mode area active fibers by controlling the radial distribution of the rare earth dopant[C]. SPIE,2006,6102:61021T
[8] U. Griebner,R. Koch,H. Schnnagel et al.. Efficient laser operation with nearly diffraction-limited output from a diode-pumped heavily Nd-doped multimode fiber [J]. Opt. Lett.,1996,21(4):266-268
[9] U. Griebner,H. Schnnagel. Laser operation with nearly diffraction-limited output from a Yb:YAG multimode channel waveguide [J]. Opt. Lett.,1999,24(11):750-752