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A photonic frequency upconverter utilising an electro-absorption modulator has been experimentally demonstrated for radio-over-fibre applications. Using the upconverter, an optical radio frequency (RF) signal having RF frequencies of 19.5 and 28.5 GHz was generated by mixing a 4.5 GHz optical intermediate frequency signal with a 24 GHz electrical local oscillator signal. The compact photonic frequency...
The phase noise characteristics of an all-optical single sideband frequency upconverter that uses an optical interleaver and a semiconductor optical amplifier are experimentally investigated. While the phase noise characteristic of the upconverter is limited by that of the LO signal source, it becomes degraded owing to the path imbalance of the two optical signal paths. Compensation for the path imbalance...
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