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We discuss photonic generation of high-speed THz wireless signals, with particular reference to how multiband signals could be distributed over fibre networks from a central baseband unit equipped with a pool of optoelectronic components, allowing the remote antenna unit to be very simple, while delivering flexibility in terms of data rate and THz carrier frequency. The proposed scheme is demonstrated...
Microwave photonics is now a mature research area, the first papers in the field having been published some fifty years ago. Some application areas, such as wireless over fiber, have enjoyed major commercial success, with annual sales revenues of > $100 m and systems installed worldwide. Other areas, such as optical beam-forming for antennas and optical filtering for microwave systems have delivered...
We demonstrate the generation of continuous wave terahertz radiation from Fe-doped InGaAs and Fe-doped InGaAsP photomixers grown by Metal Organic Chemical Vapor Deposition (MOCVD), using a pair of 1550 nm diode lasers. A bandwidth of > 2.4 THz is obtained from the emitters and the effect of doping on emitted power and bandwidth is studied.
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...
We demonstrate a fully integrated tunable continuous-wave (CW) millimeter wave heterodyne synthesizer. DFB lasers, SOA amplifiers, passive waveguides, beam combiners, high speed photodetectors have been integrated on the same InP-based platform. Millimeter wave generation up to 110 GHz has been demonstrated.
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