[5] Liu H G, Hu M L, Song Y J et al. Operation of Kerr-lens mode-locked Ti: sapphire laser in the non-soliton regime[J]. Chinese Physics B, 19, 014215(2010).
[6] Champert P A, Popov S V, Taylor J R. Highly efficient, variable pulse format, 770-nm source based on powerful seeded fiber amplifier and second-harmonic generation in periodically poled KTP[C]. //Conference on Lasers and Electro-Optics (CLEO 2000), May 7-12, 2000, San Francisco, CA, USA., 424-425(2000).