Abstract:The power level of Yb doped fiber lasers which operate in continuous wave mode has been increasing in recent years and various kinds of applications using high power single-mode fiber lasers that oscillate in 1microns wavelength range were reported. Single-mode fiber laser that has excellent beam quality of less than 1.1 M 2 value with kW class average power can be focused to tens of microns diameters and its optical power density at the focus point is more than 1x10 8 W/cm 2 . In this power density range, the… Show more
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