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A high-power red fibre laser with a Pr-doped waterproof fluoro-aluminate glass fibre (Pr:WPFGF) is reported. Even though a Pr:WPFGF is a fluoride material, it possesses low deliquescence and enough long-term stability. A blue/violet GaN laser diode at 442 nm was launched into the Pr:WPFGF (core diameter 8 m, length 40 mm), both end surfaces of which were directly coated to construct a resonator. The...
In this paper, we have developed a chemically durable Pr3+ doped fluoride glass forecasting fiber lasers and we also will report the stimulated emission cross section (SECS) evaluated by Judd-Ofelt analysis.
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