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Updated: Jul 11, 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-power all-normal-dispersion femtosecond pulse generation from a Yb-doped large-mode-area microstructure fiber
Caroline Lecaplain1, Clovis Chédot, Ammar Hideur
1Groupe d'Optique et d'Optronique, CORIA UMR 6614, Université de Rouen, Avenue de l'Université BP 12, 76801, Saint Etienne du Rouvray Cedex, France.
Abstract:
We report on an all-normal-dispersion mode-locked fiber laser based on a large-mode-area Yb-doped microstructure fiber and using a high nonlinear modulation depth semiconductor saturable absorber mirror. The laser delivers 3.3 W of average output power with positively chirped 5.5 ps pulses at a center wavelength of 1033 nm. The pulse repetition rate is 46.4 MHz, which results in an energy per pulse of 71 nJ. These pulses are extracavity dechirped down to 516 fs by using bulk gratings. The average power of the dechirped pulses is 2.3 W, which corresponds to a peak power of more than 96 kW.
