PHOTO : Photonic devices

Our research on photonic devices aims to improve the degree of monolithic integration. The current strands are devoted to the demonstration of optical sources as they are central to the development of photonics systems. The objective in this context is to demonstrate integrated optical sources which exhibit avanced performance in terms of their spectral or temporal characteristics. To do so, we seek to overcome the technological fabrication limits. Furthermore, to implement the desired functions and achieve high performance with integrated devices requires a detailled understanding of the underpinning physical mechanisms to enable fully optimised designs. Finally, we also seek to demonstrate devices with disruptive performance for optical systems.

The various types of device structures that we study are:

• III-V semiconductor tunnel junctions
• VCSEL-type lasers
• Devices for non linear optics
• Photonic-crystal-based lasers
• Nanostructured optical filters.