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Postgraduate research project

Vacuum hollow-core optical fibres

Competition funded View fees and funding
Type of degree
Doctor of Philosophy
Entry requirements
2:1 honours degree
View full entry requirements
Faculty graduate school
Faculty of Engineering and Physical Sciences
Closing date

About the project

We are looking for a PhD student to join our growing team of students, postdocs, and senior researchers. You will enjoy a friendly and supportive environment for a collaborative project on the latest developments in optical fibre science and technology.

At the Optoelectronics Research Centre, we are leading the world in developing a new generation of optical fibres that promise a revolution in applications ranging from optical communications to ultraprecise optical sensors.  Our hollow-core optical fibres harness some truly intriguing physics to guide light in an air-filled core region over tens of kilometres distance and are now rivalling and outperforming standard optical fibres.

Currently, the central hole of the hollow core fibre is filled with air, which for some of the most advanced applications (e.g., transmission of quantum states or high-power signals) limits the fibre performance. This project thus aims to push the limits of what is possible with hollow core fibres by removing the air from the air-filled core. 

You will work in one or more of these areas:

  • investigate techniques for evacuation, which is not straightforward for km-length fibres
  • develop tools and methods to measure the gas pressure distribution (such techniques could be in the future used for a multitude of applications such as distributed sensing)
  • study how these evacuated fibres can push the limits of what is possible with optical fibres

Finally, we aim to use these fibres to demonstrate, for example, new record laser power delivery in fibres, interferometers with the minimum possible noise added by the fibre (of interest, e.g., for ultra-sensitive detection of gravitational waves), and transmission at wavelengths where air-filled hollow-core fibres or standard fibres have too strong absorption. 

If you have an interest in optical fibres, their physics, and their applications, you would be highly suitable for this project. You will benefit from the world-leading expertise in these fields at the ORC and work in a supportive group of like-minded researchers, leading you to a PhD in an exciting new area of physics and technology.

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