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Updated: Jun 3, 2026
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
High pulse energy mode-locked multicore photonic crystal fiber laser
Xiaohui Fang1, Minglie Hu, Chen Xie
1Key Laboratory of Opto-Electronic Information Science and Technology of Ministry of Education, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin, China.
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.
