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Direct amplification of ultra short pulses at 1037 nm from fiber-oscillators to average powers of ~100 W at 48 MHz is demonstrated using single-stage amplifiers comprising new all-glass-leakage-channel-fibers, providing >70% slope efficiency and >33 dB gain.
Ytterbium-doped phosphosilicate fibers with phosphate-like characteristics, lifetime and doping-levels are demonstrated, offering significantly increased peak powers from shorter fiber amplifiers. Efficient fibers with up to 4700 dB/m peak absorption at 976 nm and low photo-darkening are demonstrated.
We have demonstrated ultra high NA fibers of core diameters down to 1.2μm, low confinement loss and very high nonlinearity. Efficient supercontinuum generation is demonstrated in a 2μm core fiber. These fibers can also be spliced to conventional fibers with low loss.
We have demonstrated ultra high NA fibers of core diameters down to 1.2 mum, low confinement loss and very high nonlinearity. Efficient supercontinuum generation is demonstrated in a 2 mum core fiber. These fibers can also be spliced to conventional fibers with low loss.
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