Resonant tunnelling diode based high speed optoelectronic transmitters

Wang, Jue; Rodrigues, G. C.; Al-Khalidi, Abdullah; Figueiredo, José; Wasige, Edward

http://hdl.handle.net/10400.1/11994

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Resonant tunneling diode (RTD) integration with photo detector (PD) from epi-layer design shows great potential for combining terahertz (THz) RTD electronic source with high speed optical modulation. With an optimized layer structure, the RTD-PD presented in the paper shows high stationary responsivity of 5 A/W at 1310 nm wavelength. High power microwave/mm-wave RTD-PD optoelectronic oscillators are proposed. The circuitry employs two RTD-PD devices in parallel. The oscillation frequencies range from 20-44 GHz with maximum attainable power about 1 mW at 34/37/44GHz.