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FP-41 PhD – High speed externally modulated lasers for integration with silicon photonics.

FP-41 PhD – High Speed Externally Modulated Lasers for Integration with Silicon Photonics

Contract Type Fixed Term/Full Time

Multiple Quantum Well (MQW) electro-absorption modulators (EAMs) based on the quantum confined stark effect (QCSE) are a key component in Photonics Integrated Circuits (PICs). They offer high speed operation, a large extinction ratio, low driving voltage, a small footprint and can be integrated with other photonic components using monolithic or hybrid integration. The integration of lasers with EAMs results in a very compact externally modulated laser (EML), however the method of integration is varied and potentially challenging due to the different active region requirements of the EAM and laser. Further integration of the EML with silicon photonic waveguides provides an additional integration challenge.

Tyndall National Institute at University College Cork invite applications for a PhD position aimed at the research and development of the high speed externally modulated lasers that will be integrated with silicon photonic waveguides and circuits. The successful candidate will have completed an undergraduate degree in a physics or engineering related discipline. This position will require a candidate who will work over a broad range of areas, including: photonic device design, characterisation of photonic devices, and fabrication of photonic devices. The position is concerned with the development of the high speed EMLs for an Industrial-Tyndall co-funded project.

This position is part of I-PIC, the Irish Photonic Integration Centre, located at the Tyndall National Institute in Cork (


  • The responsibilities will include the design, fabrication and characterisation of Photonic devices and PICs, especially high speed externally modulated lasers based on electro-absorption modulators.

Essential Criteria

  • A good undergraduate or master's degree in physics, electronic engineering.
  • Applications are invited from students who have, or expect to gain, a first or second class honours degree in physics or a similar discipline.
  • An interest in the physics of optoelectronic devices.
  • Motivation and a desire to learn.

Further queries contact (email address) Prof. Frank Peters (

An annual student stipend of €18,000.00 applies for this successful candidate for this position.  Yearly University academic fees will paid by the Tyndall National Institute.

Application Instructions

Step 1 - please click here to download the application form

Step 2 -  return the completed application form, together with your cv, motivation letter and references to  Handwritten forms will not be accepted.

Please note that Garda vetting and/or an international police clearance check may form part of the selection process.

The University, at its discretion, may undertake to make an additional appointment(s) from this competition following the conclusion of the process.

At this time, Tyndall National Institute does not require the assistance of recruitment agencies.

Tyndall National Institute at University College, Cork is an Equal Opportunities Employer.