Abstract
We report the efficient gain-switched high-repetition-rate Cr2+:CdSe single-crystal laser operating around 3μm and pumped at 2.09μm by a fiber-laser-pumped Ho3+:YAG laser. Average power of up to 6W with the optical-to-optical efficiency of 67% at 2.65-2.85μm was achieved in the Cr2+:CdSe laser with nanosecond pulses at 8kHz repetition rate. Wavelength tunability from 2.5μm to 3.15μm was demonstrated using a set of cavity mirrors and an intracavity Lyot filter.
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