Related Experiment Video
Updated: Jul 4, 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
Widely repetition-tunable 200 fs pulse source using a Mach-Zehnder-modulator-based flat comb generator and
Isao Morohashi1, Takahide Sakamoto, Hideyuki Sotobayashi
1National Institute of Information and Communications Technology, Koganei, Tokyo, Japan. morohashi@nict.go.jp
Abstract:
By combining a Mach-Zehnder-modulator-based flat comb generator (MZ-FCG) with a dispersion-flattened dispersion-decreasing fiber, femtosecond pulses have been generated from a cw light. Near-Fourier-transform-limit picosecond pulses generated from the MZ-FCG were compressed into femtosecond order by pulse compression. Our system enables flexible tuning of the repetition rate and pulse width, because those depend on the driving signal of the MZ-FCG. Pulse trains of 200 fs width were continuously and stably generated without mode hopping, with a repetition rate range from 5 to 17 GHz. Our system consists of a modulator and compression fiber; thus, the configuration is simpler and more stable.
