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Updated: Aug 26, 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
Single-transverse-mode 2.5-W holmium-doped fluoride fiber laser operating at 2.86 microm
1Optical Fibre Technology Centre, Australian Photonics CRC, The University of Sydney, 206 National Innovation Centre, Australian Technology Park, 1430 Eveleigh, Sydney, Australia. s.jackson@oftc.usyd.edu.au
Abstract:
A high-power tandem-pumped Ho3+, Pr3+-doped ZBLAN fiber laser is demonstrated. Using the free-running 1100-nm output from a diode-cladding-pumped Yb3+-doped silica fiber laser as the pump source, a maximum output power of 2.5 W was generated at a slope efficiency of 29% after the threshold of approximately 30 mW was reached. Saturation of the output is avoided with Pr3+ codoping, which allows single-transition output. The center wavelength of the output was 2.86 microm and the bandwidth at maximum power was approximately 15 nm.
