Abstract

A bidirectional erbium-doped fiber amplifier (Bi-EDFA) has been used in a self-seeding scheme for wavelength-tunable optical short pulse generation. The pulse wavelength is selected and purified by use of two tunable Fabry–Perot (FP) optical filters with bandwidth of $0.11\mathrm{nm}$ and $99\mathrm{pm}$ respectively, while a constant repetition frequency of $1.045\mathrm{GHz}$ is maintained. The sidemode suppression ratio (SMSR) of the output pulses achieved is better than $40\mathrm{dB}$ over the wavelength tuning range of $33\mathrm{nm}$. The system is simple and efficient, and a continuous wavelength tuning can be readily achieved.

© 2008 Optical Society of America

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