PASSIVELY PHASE-LOCKED SEMICONDUCTOR LASERS FOR CLOCK RECOVERY AND TERAHERTZ GENERATION

Characterizations of passively mode-locked semiconductor lasers will be presented in following paper. These lasers are able to operate in multimode regime and to exhibit a modulation of output power even though they are DC-biased. A frequency of the modulation corresponds to their free-spectral range associated with optical longitudinal modes Some potential applications for devices of that type will be disclosed: in THz frequency range for terahertz wave generation at room temperature without any direct modulations applied, in the radio frequency range ability to synchronise their modulation to the bit-rate of an incoming signal makes them suitable for all-optical clock extraction.