Photonics is the science and technology of using light to obtain, convey and process information. Although photonics is relatively new compared to electronics, it is already established as one of the key technologies supporting today s worldwide telecommunications networks and the Internet. Increasingly photonics is also being used in the world s most powerful computers.
The Photonic Systems Group in the Tyndall National Institute in Cork, Ireland has a broad-ranging research programme in leading-edge photonic systems, including: optical signal generation, transmission, restoration, processing, switching and quantum encryption. The emphasis is on applications and system-level investigations, and these activities involve developing a detailed physical understanding of semiconductor and fibre components, as well as an appreciation of telecommunications systems.
Applications are invited for a funded postgraduate research studentship. In this project, the object is to develop all-optical logic devices that will operate directly on the optical signals in future telecommunications networks without first converting them into electronic form. Present-day networks use analogue transmission of signals over optical fibres, with linear optical amplifiers and compensation devices to overcome loss and distortion. Nevertheless, noise and impairments do accumulate over multiple fibre spans. In order to be regenerated, signals are converted to and from the electrical domain, normally at routing points. Regeneration of signals in the optical domain using nonlinear semiconductor optical amplifiers could remove the accumulated impairments, while avoiding the cost and energy consumption of optical to electrical conversion. Digital optical logic gates based on the same devices can also perform simple routing and other functions in the optical domain. There is the potential for significant energy savings and simplification of the network architecture as the technology for performing these operations in the optical domain matures. The aim of this project is both to improve our understanding of the behaviour of nonlinear semiconductor optical amplifiers, principally through time-resolved spectroscopy, and also to develop optical logic circuits that will lead to routers with lower complexity, cost and energy consumption than current technologies.
The position will lead to a higher degree including Ph.D, and is available to start at several times during the year. Students will receive training in research methods and will work alongside very experienced researchers on projects to develop advanced photonic systems. The laboratory facilities available for photonic systems research at the Tyndall National Institute are amongst the best in Europe. The minimum academic qualification is a first or upper second class honours degree in physics, electrical engineering, or related relevant discipline. The successful candidate will be highly self-motivated, and keen to learn and contribute as an integral member of a dynamic research team.
For more information, please contact David Cotter at david.cotter@tyndall.ie
To apply for this position, please submit a CV to careers@tyndall.iequoting the reference number.
To apply for this post, complete the application form and forward with a detailed curriculum vitae and references to:
HR Department
Tyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland
Fax: +353-21-4904058
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