Heterodyne millimeter wave source with monolithically integrated UTC photodiodes
28 October 2013
A fully integrated tunable heterodyne source designed for the generation and modulation of sub-Terahertz signals is demonstrated. This device is to be used for high data-rate wireless transmissions. DFB lasers, SOA amplifiers, passive waveguides, beam combiners, electro-optic modulators and high speed photodetectors have been integrated on the same InP-based platform. Millimeter wave generation at up to 120 GHz based on heterodyning the optical tones from two integrated lasers in an also integrated high bandwidth photodetector has been demonstrated.