Generation of Wavelength-Tunable Optical Pulses Using a Linear-Cavity Fiber Laser Scheme With a Fabry–PÉrot Laser Diode

A wavelength-tunable mode-locked linear-cavity fiber laser was demonstrated using a Fabry-Pe/spl acute/rot laser diode. By adding a tunable bandpass filter within the linear cavity, the wavelength-tunable fiber laser was easy to be tuned dynamically. This linear-cavity fiber laser output exhibited a good performance having the optical sidemode suppression ratio over 30 dB and the wavelength-tuning range up to 27 nm. Furthermore, this fiber laser generated pulses with pulsewidth between 53.2 and 80.4 ps at a repetition frequency of 908.39 MHz.