Journal
ELECTRONICS LETTERS
Volume 41, Issue 14, Pages 794-795Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/el:20051566
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Blue semiconductor laser pumped continuous-wave laser oscillation of a Pr-doped ZrF4-BaF2-LaF3-AlF3-NaF fibre in the red spectral range is reported for the first time. The pump power is provided by a frequency-doubled optically pumped semiconductor laser system. When pumped with 300 mW at a wavelength of 479.7 am, the Pr3+-laser emitted 94 mW of output power at a wavelength of 63 5 nm. Threshold pump power and slope efficiency with respect to the incident pump power were determined to be 49.7 mW and 41.5%, respectively.
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