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Mode-locking at 100 GHz with 2 ps pulse duration is demonstrated in a quantum-well diode laser designed to support a discrete comb of modes. Spectral filtering was achieved using a non-periodic patterning of the cavity effective index.
A compact continuous-wave (CW) terahertz source is demonstrated using a single two-colour laser diode and a photomixer. The 350 mum-long Fabry-Perot laser is constrained to oscillate on non-adjacent cavity modes, at a frequency separation of 485 GHz, by the introduction of features along its ridge waveguide. At a drive current of 155 mA, more than 10 mW of CW power is delivered into a standard singlemode...
High power singlemode strained GaInAs lasers have been fabricated which use buried second order gratings as distributed Bragg reflectors. The lasers operate in an edge emitting fashion with CW powers in excess of 110 mW with single longitudinal and transverse mode operation at 971.9 nm up to 42 mW.<<ETX>>
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