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Updated: Aug 9, 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
Multimilliwatt ultrashort pulses continuously tunable in the visible from a compact fiber source
K Moutzouris1, E Adler, F Sotier
1Department of Physics and Center for Applied Photonics, University of Konstanz, Universitätsstrasse 10, 78464 Konstanz, Germany. konstantinos.moutzouris@uni-konstanz.de
Abstract:
We report on a single-pass device that efficiently converts the broadband near-infrared output from a femtosecond fiber laser into a narrow spectrum in the visible. With fan-out poled MgO:LiNbO3 we obtain sub-picosecond, continuously tunable pulses in the 520-700 nm range. Conversion efficiencies as high as 30% are observed at typical pump power levels of 30 mW, corresponding to average output powers up to 9.5 mW. The specifications of our device are ideal for applications in confocal microscopy and frequency metrology.
