title: High pulse energy mode-locked multicore photonic crystal fiber laser.
abstract: A high pulse energy passively mode-locked fiber laser operating in the all-normal dispersion regime is demonstrated. The gain material is an Yb-doped multicore photonic crystal fiber with 18 cores in array-type geometry. Robust and self-starting mode locking is achieved using a fast semiconductor saturable absorber mirror. The laser generates 180 nJ chirped pulses at a 14.48 MHz repetition rate for an average power of 2.6 W. The 1.15 ps output pulses are compressed to 690 fs outside the cavity.
authors.affiliation: Key Laboratory of Opto-Electronic Information Science and Technology of Ministry of Education, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin, China.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Fang
authors.forename: Minglie
authors.initials: M
authors.lastname: Hu
authors.forename: Chen
authors.initials: C
authors.lastname: Xie
authors.forename: Youjian
authors.initials: Y
authors.lastname: Song
authors.forename: Lu
authors.initials: L
authors.lastname: Chai
authors.forename: Chingyue
authors.initials: C
authors.lastname: Wang