Abstract
Lasing of Nd3+ ions in different crystallographic sites of KYF4 has been demonstrated to occur at different wavelengths. Low threshold, high efficiency lasing performance at 1041 and 1302 nm were achieved under selective pumping conditions. The stimulated emission cross section at 1041.2 nm was estimated to be 2.6×10−19 cm2 and the radiative lifetime was found to be 600 μs.
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