Quantum information processing is nowadays an established branch of quantum mechanics
applications. Recent results in different areas, ranging from communications to computing …

We demonstrate a high linear polarization, narrow linewidth hybrid laser composed of a
semiconductor gain chip and a high birefringence waveguide Bragg grating (WBG). The …

The correlations between photons generated by nonlinear optical processes offer
advantages for many quantum technology applications, including spectroscopy, imaging …

Third-order nonlinear processes require phase matching between the interacting fields to
achieve high efficiencies. Typically in guided-wave $\chi^{(3)} $ platforms this is achieved by …

Quantum optics and photonics play a key part of the field of quantum technology. For these
technologies to be of practical use, scale must be realised in both complexity and …

This thesis concerns pressure sensors based on silica-on-silicon integrated optical devices,
fabricated using flame hydrolysis deposition, micromachining and Small Spot Direct …

Post-primary (secondary and higher) education participation in many low-and middle-
income countries is low including in Nigeria. Despite global advocacy for continued …

While there are many possible materials for integration, we choose to work with silica-based
glass for ease of coupling with fibre, increasing the flexibility of the platform. The waveguides …