Abstract Spontaneous locking of the phase a coherent phonon source to an external reference is demonstrated in deeply sideband-unresolved optomechanical system. The high-amplitude mechanical oscillations are driven by anharmonic modulation radiation pressure force that result from absorption-mediated free-carrier/temperature limit cycle, i.e., self-pulsing. Synchronization observed when pump la...

The research presented in this thesis is on the application of the injection-locked oscillator technique to microwave balanced oscillators. The balanced oscillator design is primarily analysed using the extended resonance technique. A transmission line is connected between the two active devices, so that the active device resonate each other. The electrical length of the transmission line is al...

The mode-locking technique based on intracavity second-harmonic generation is extended to sum- and difference-frequency generation. Simultaneous passive mode locking of two different types of laser in a combined cavity is thus possible. By using the same principle, a laser may be actively mode locked by injection of a pulse train from another mode-locked laser.

The optoelectronic oscillator is a delay line that leverages optical fiber technology to realize the large required for low phase noise systems. Spurious sidemodes are an artifact of oscillator, yet treatments injection locking oscillators have relied on application classical theory valid only single mode oscillators. contributed by accounted in part through quality factor Q captures round-trip...