Alwyn J. Seeds

TL;DR: In this article, a photonic integrated circuit optical phase lock loop (OPLL) subsystem implemented as a high quality optical filter for single comb line selection and optical amplification is used to generate an optical carrier, which is frequency and phase stabilized in reference to one of the optical comb lines with a frequency offset precisely selectable between 4 and 12 GHz.

TL;DR: In this paper, near-field and far-field distributions of the generated terahertz (THz) waves from GaAs and Fe-doped InGaAs surfaces were mapped.

TL;DR: In this article, the results of an investigation into the use of heavily doped tunnelling metal-semiconductor contacts as optically pumped mixers are presented, and the electrical and optoelectronic characteristics of the contacts are determined, and these characteristics are used to obtain predictions of the performance of the devices.

TL;DR: In this article, a hybrid integrated optical phase-lock loop was used to generate a terahertz source with linewidth < 1 kHz and phase noise <−80dBc/Hz at 10 kHz offset.

TL;DR: Elect electrically pumped continuous-wave InAs QD SLDs monolithically grown on silicon substrates with significantly improved performance thanks to the achievement of a low density of defects in the III-V epilayers are demonstrated.