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Dual-wavelength 10-GHz actively mode-locked erbium fiber laser incorporating highly nonlinear fibers

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6 Author(s)
Gong, Y.D. ; Lightwave Dept., Inst. for Infocomm Res., Singapore, Singapore ; Tang, M. ; Shum, P. ; Lu, C.
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We demonstrated a dual-wavelength actively mode-locked erbium-doped fiber ring laser with 0.8-nm wavelength spacing at a repetition rate of 10 GHz. A 1-km highly nonlinear fiber is introduced in the nonpolarization-maintaining cavity to suppress the gain competition of the homogeneously broadened gain medium in a self-driven manner. Output pulses at 1557.36 and 1558.17 nm are generated simultaneously. Amplitude fluctuations less than 0.45% and 1.7% of two wavelengths are measured. The corresponding timing jitters are less than 80 and 90 fs, respectively.

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Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 12 )