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光子学报 2004
Experiment Study on Supercontinuum in a 100 m Dispersion-shift Fiber
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Abstract:
The total 20 dB bandwidth of 488 nm of supercontinuum (SC) with unevenness less than ±3.0 dB in a 100 m Dispersion-Shifted Fiber (DSF) with zero dispersion wavelength of 1543.0 nm was obtained in the experiment,whichwasbasedonthepassivemodelockedErbium-dopedfiberlaserwiththerepetitionrateof13.9MHz and the center wavelength of 1557.28 nm . Thus multi-wavelength pulses of 163 channels were picked up by a Fabry-Perot filter and short pulses with duration of 1.2~2.0 ps and a little frequency chirp by a tunable optical filter . The results of the experiment were compared with that of 4.57 km DSF and 4.28 km DFF and the data shows that the setup of 100 m DSF was a good idea.