Generation of 1.4 THz clock by filtering a 42.7 GHz actively mode-locked Quantum Dash Fabry-Perot laser

We report on the generation of an optical clock up to 1.4 THz using a spectral filtering from a Quantum Dash Fabry-Perot laser. We show that it is possible to recover high speed clock by converting their rate down to 42.7 GHz.