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Quasi-periodic route to chaos in erbium-doped fiber laser

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5 Author(s)
Sanchez, F. ; Lab. d''Opt., ENSSAT, Lannion, France ; LeFlohic, M. ; Stephan, G.M. ; LeBoudec, P.
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We present experimental evidence of quasiperiodic route to chaos in erbium-doped fiber laser operating simultaneously at 1.550 μm and 1.536 μm. Starting from a CW state for high pumping rates the system becomes T-periodic, 2T-periodic, 3T-periodic and chaotic for decreasing pumping ratios. The low-frequency spectra shows two fundamental frequencies. The nT-periodic regimes correspond to a frequency locking of the low frequency on a subharmonic of the high frequency. An adapted model based on the rate equations is numerically investigated and leads to a good qualitative agreement with the experimental data

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Quantum Electronics, IEEE Journal of  (Volume:31 ,  Issue: 3 )