Abstract
The characteristics of praseodymium doped superfluorescent fluoride fiber source (SFFS) operating in the 1.3 μm band, including output power, bandwidth and spectrum, are investigated theoretically and experimentally in this paper. The effects of fiber length and pump power on characteristics of different configuration sources are modeled at the pump wavelength of 980 and 1015 nm. The numerical simulation results show that double pass configuration sources are more efficient than single configuration sources. The full width at half maximum (FWHM) bandwidth is more than 20 nm. The output power of more than 4 mW has been obtained experimentally with a double pass backward configuration SFFS, and its FWHM bandwidth is about 20 nm. The SFFS has quasi-Gaussian output spectra both theoretically and experimentally.
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