[1] Jeong Y, Sahu J K, Payne D N, et al. Ytterbium-doped largecore fiber laser with 1.36 kW continuous-wave output power. Optics Express, 2004, 12(25): 6088-6092
[2] Kim N S, Hamada T, Prabhu M, et al. Numerical analysis and experimental results of output performance for Nd-doped double-clad fiber lasers. Optics Communications, 2000, 180(4-6): 329-337
[3] Ripin D J, Goldberg L. High efficiency side-coupling of light into optical fibres using imbedded v-grooves. Electronics Letters, 1995, 31(25): 2204-2205
[4] Xu J Q, Lu J H, Kumar G, et al. A non-fused fiber coupler for side-pumping of double-clad fiber lasers. Optics Communications, 2003, 220(4-6): 389-395
[5] Koplow J P, Moore S W, Kliner D A V. A new method for side pumping of double-clad fiber sources. IEEE Journal of Quantum Electronics, 2003, 39(4): 529-540
[6] Herda R, Liem A, Schnabel B, et al. Efficient side-pumping of fiber lasers using binary gold diffraction gratings. Electronics Letters, 2003, 39(3): 276-277
[7] Gonthier F, Martineau L, Azami N, et al. High-power all-fiber components: the missing link for high power fiber lasers. Proceedings of SPIE, 2004, 5335: 266-276
[8] Zhou J, Lou Q H, Zhu J Q, et al. A continuous-wave 714 W fiber laser with China-made large-mode-area double-clad fiber. Acta Optica Sinica, 2006, 26(7): 1119-1120 (in Chinese)
[9] Zhou J, Lou Q H, Kong L F, et al. A 115-W ytterbium-doped fiber laser. Chinese Physics Letters, 2004, 21(6): 1083-1085
[10] Ou P, Yan P, Gong M L, et al. Multi-coupler side-pumped Ybdoped double-clad fiber laser. Chinese Optics Letters, 2004, 2(5): 285-287