Alwyn J. Seeds

TL;DR: In this article, a thin AlAs nucleation layer (NL) was investigated for the growth of InAs/GaAs QDs on Si substrates, which enabled more defects to be confined in the interface between the GaAs epitaxial layer and Si substrate.

TL;DR: Microwave photonics is the use of photonic techniques for the generation, transmission, processing and reception of signals having spectral components at microwave frequencies as mentioned in this paper, where the authors present a review of the technologies used and give applications examples.

TL;DR: In this article, the authors present two approaches for the development of dual wavelength sources for heterodyne-based millimeter wave generation realized using active/passive photonic integration technology, which integrates monolithically two distributed feedback semiconductor lasers along with semiconductor optical amplifiers, wavelength combiners, electro-optic modulators and broad bandwidth photodiodes.

TL;DR: In this article, the authors present theoretical analysis and experimental results for an optimized Traveling Wave Uni-Traveling Carrier Photodiode for continuous wave millimeter-wave and Terahertz generation.

TL;DR: In this article, a photonic multichannel terahertz (THz) wireless system with up to four optical subcarriers and total capacity as high as 100 Gb/s by employing an externally injected gain-switched laser comb source was demonstrated.