title: Direct femtosecond pulse compression with miniature-sized Bragg cholesteric liquid crystal.
abstract: Direct compression of femtosecond optical pulses from a Ti:sapphire laser oscillator was realized with a cholesteric liquid crystal acting as a nonlinear 1D periodic Bragg grating. With a 6 μm thick sample, the pulse duration could be compressed from 100 to 48 fs. Coupled-mode equations for forward and backward waves were employed to simulate the dynamics therein, and good agreement between theory and experiment was obtained.
authors.forename: Liyan
authors.initials: L
authors.lastname: Song
authors.forename: Shenhe
authors.initials: S
authors.lastname: Fu
authors.forename: Yikun
authors.initials: Y
authors.lastname: Liu
authors.forename: Jianying
authors.initials: J
authors.lastname: Zhou
authors.forename: Vladimir G
authors.initials: VG
authors.lastname: Chigrinov
authors.forename: Iam Choon
authors.initials: IC
authors.lastname: Khoo