Widely tunable dual-wavelength picosecond pulses generated from an actively mode-locked semiconductor laser using a Fabry-Perot Grating-Lens External Cavity

摘要

A novel scheme to generate tunable dual-wavelength pulses by harmonic and rational-harmonic mode-locking of a 1.5-#mu#m semiconductor laser is proposed. The pulses have a width of 30ps, a spectral separation of 0.9 nm, and a tuning range of 65nm.