1.55-mu m optical short pulse generation at 10-GHz repetition rate, using a mode-locked hybrid distributed Bragg reflector (ML-HDBR) laser source

In the present paper me report the realization of a mode-locked hybrid dist ributed Bragg reflector (HDBR) laser for picosecond optical pulse generatio n at 10-GHz repetition rate. 12.7-ps 2-mW optical pulses, with 400-hIHz loc king bandwidth have been obtained by using a saturated (95% of peak reflect ivity) Gaussian Bragg grating. Linear phase gratings have shown even better results in terms of stability and output power (7 mW), whereas so far 15 p s of pulsewidth has been achieved, mainly limited by the spectral bandwidth of the grating. Key features of this realization are the intrinsic simplic ity and the compactness of the laser source.