PhD Studentship in All-Optical Signal Processing on Silicon

University of Southampton
May 11 2017
Position Type
Full Time
Organization Type

The Optoelectronics Research Centre has a 40-year track record of pioneering contributions in photonics and is currently one of the largest and most dynamic research centres in this field world-wide.  The Integrated Photonic Devices Group explores the fundamentals of guided wave optics at surfaces, with applications including telecommunications, biosensing and novel light sources, and is complemented by world-class photonic materials and fabrication facilities (

The Project: There is increasing interest in low-cost photonic circuits for mass-market applications such as fibre-to-the-home. Integrated circuit technology has enabled extraordinary complexity at low cost for electronic systems and has the potential to provide a revolution in mass-manufacture for all-optical systems. For this dream to be realised, materials and fabrication processes suitable for advanced photonic applications must be devised. All-optical processing requires high third-order nonlinearity (power dependent refractive index) combined with tight confinement of light, in photonic circuits. Silicon itself has problems with nonlinear absorption in the appropriate power and wavelength regime, but heavy metal oxides, such as Ta2O5 and Nb2O5 which can be integrated with silicon, are attractive for a wide range of optical functions, especially all-optical switching and gain. In this project we will explore these materials for advanced device functionality exploiting nonlinearity and electro-optic control.

Supervision: This project will be supervised by Prof. James Wilkinson and Dr. Senthil Ganapathy

Entry requirements: first or upper second-class degree or equivalent

English language: IELTS 6.0, with a minimum of 5.5 in each component; for information on other accepted English Language tests, please visit

Duration: up to 4 years (full-time)

Start date: typically October 2017

Applying: For further application details please click here

Funding: Full scholarships are available for UK students. We are normally able to fund the fees of EU applicants but we only have limited funding to support living expenses. The competition for this funding is therefore tough and obtaining funding from any other source will increase chances of success. International students are encouraged to seek full or partial funding from other sources (e.g. national government scholarships, commonwealth scholarships, self-funding etc).

For further information, visit

Contact: You are welcome to contact Prof. James Wilkinson ( or Dr. Senthil Ganapathy ( for an informal discussion. Please mention the project title and supervisors name in your application when applying online.

This job comes from a partnership with Science Magazine and Euraxess