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A single‐sideband opto‐RF oscillator based on a monolithic InGaAsP chip containing two distributed feedback (DFB) lasers is demonstrated. The heterodyne signal is stabilised by a hybrid method, combining optical and electronic feedback. It leads to a locking of the beating frequency onto a filtered version of itself. The table‐top setup provides a phase noise level down to −75 dBc/Hz at 1 kHz offset from a 10 GHz carrier. Potential phase noise improvement and integration scheme in a single component are discussed. [ABSTRACT FROM AUTHOR]

A photonic oscillator, locked to a master RF synthesiser, was built by using a monolithic dual-wavelength DFB semiconductor laser submitted to a frequency-shifted optical feedback. A [3; 10] GHz tuning range is reported, with a phase noise level lower than -70 dBrad2/Hz at a 10 Hz offset from the carrier. [ABSTRACT FROM AUTHOR]

A photonic oscillator, locked to a master RF synthesiser, was built by using a monolithic dual‐wavelength DFB semiconductor laser submitted to a frequency‐shifted optical feedback. A [3; 10] GHz tuning range is reported, with a phase noise level lower than −70 dBrad2/Hz at a 10 Hz offset from the carrier. [ABSTRACT FROM AUTHOR]