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Postgraduate research project

Raman amplification enabling optical phase conjugation

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

Undertake a PhD on distributed Raman amplification, a topic at the intersection between optical telecommunications, optical amplification, and optical nonlinearity. Develop techniques for high accuracy link power profile symmetrisation using multi-pump, high order distributed Raman amplification.

You’ll develop skills in all of these areas, harnessing nonlinearity to deliver a transmission system capable of high capacity telecommunication. This project will enable the demonstration of a high performance optical phase conjugation equipped link through collaboration within the Optical Fibre Communications (ORC) group.

Optical nonlinearities are arguably the current limiting factor for telecommunications in solid-core fibre. Optical phase conjugation (also known as mid-span spectral inversion) is one technique by which nonlinear impairments can be mitigated to increase transmission capacity. A key requirement of effective optical phase conjugation is having power profile symmetric about the point of spectral inversion and distributed Raman amplification remains one of the only technologies that can deliver this requirement.

The project will benefit from the strong facilities of the telecommunication systems laboratory of the ORC. These include full electronic and optical signal generation and diagnostic capabilities and a direct connection to an installed fibre transmission line originating from the lab, linking the ORC to other collaborating laboratories across the UK.

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