Diode-pumped Kerr-lens mode-locked Ti: sapphire laser with broad wavelength tunability

Liu Han¹, Wang Geyang¹, Yang Ke¹, Kang Renzhu¹, Tian Wenlong¹, Zhang Dacheng¹, Zhu Jiangfeng^{1, †}, Han Hainian², Wei Zhiyi^{2, ‡}

Diagram of the diode-pumped Kerr-lens mode-locked Ti: sapphire femtosecond laser. LD: 450 nm blue laser diode; L1: aspheric lens; L2 and L3: two cylindrical lenses; L4: a plano-convex lens; M1 and M2: concave mirrors with ROC of 50 mm; HR: high reflection mirror; P1 and P2: fused silica prisms; OC: plane output coupler; CM1 and CM2: chirped mirrors with −70 fs² GDD per bounce.