A decade of mid-infrared, 3.5 µm dual-wavelength pumped fiber lasers, review and perspective
O. Henderson-Sapir,
D. J. Ottaway
Affiliations
O. Henderson-Sapir
Institute for Photonics and Advanced Sensing, School of Physics, Chemistry and Earth Sciences, University of Adelaide, Adelaide, South Australia, Australia
D. J. Ottaway
Institute for Photonics and Advanced Sensing, School of Physics, Chemistry and Earth Sciences, University of Adelaide, Adelaide, South Australia, Australia
It has been a decade since dual-wavelength pumping revolutionized the efficiency and power of the 3.5 µm transition in erbium-doped fluoride fibers, demonstrating the potential for near-watt level output from fiber lasers operating well beyond 3 µm. Since then, the dual-wavelength pumping technique has driven considerable advances and a deeper understanding of this transition. In this contribution, we summarize the progress in this field and outline the steps necessary for further significant advancements.
