Efficient second-harmonic generation at 384 nm in periodically poled lithium tantalate by use of a visible Yb-Er-seeded fiber source

摘要

We generated 56 mW of average power at 384 nm in periodically poled lithium tantalate by use of a visible fiber source based on a variable-pulse format seeded Yb-Er amplifier and frequency upconversion in periodically poled KTP. The feasibility of high-average-power, wide ultraviolet wavelength-range fiber-based sources is evaluated.