Fig. 1. Topology diagram of a wavelength-swept fiber laser based on intracavity pulse stretching and compression.

Fig. 2. Topology diagram of wavelength-swept fiber laser based on an LC-FBG.

Fig. 3. Schematic of the proposed fiber laser based on an LC-FBG.

Fig. 4. (a) Reflection spectrum and (b) the transmission spectrum of the LC-FBG.

Fig. 5. (a) Wide spectrum at the laser output of OC-1. (b) Output pulse train with a detailed waveform in the inset.

Fig. 6. RF spectrum at the laser output of OC-1.

Fig. 7. Output pulse train with a detailed waveform in the inset from output port OC-1′.

Fig. 8. (a) Spectra and (b) pulse waveforms of the laser output for six wavelengths switched from 1549.72 to 1550.72 nm.