Low-noise fibre lasers for next-generation quantum systems

About the Project

Supervisory Team: Dr Yongmin Jung, Prof. Periklis Petropoulos and Dr Sijing Liang

This project will pioneer ultra-stable, low-noise fibre lasers engineering for next-generation quantum technologies. By combining innovative cavity design, thermal control, and frequency stabilization, you'll develop compact, high-performance laser systems crucial for quantum sensing, secure communications, and advanced photonic computing platforms.

Quantum technology advancement depends critically on laser sources that maintain exceptional frequency stability and spectral purity. Even minor noise or drift can limit precision measurement or qubit control. This project addresses these challenges through the development of advanced, low-noise fibre laser systems tailored to quantum applications. The work will encompass innovative laser cavity design, noise suppression strategies, and advanced stabilisation methods, targeting sub-kHz linewidths and long-term frequency stability.

Leveraging the inherent advantages of fibre systems, such as compactness, mechanical robustness, and excellent beam quality, you'll build and characterise experimental laser prototypes, integrating precision feedback control and optical metrology techniques. You'll acquire deep expertise in fibre optics, laser engineering, and quantum photonics.

This project offers hands-on laboratory experience in designing, building, and testing cutting-edge laser systems, as well as opportunities to collaborate with world-leading quantum research groups and industrial partners. When you graduate, you'll be equipped with a unique skill set at the intersection of photonics and quantum technology, an essential foundation for careers in both academic research and advanced technology industries.

Entry Requirements:

You must have a UK 2:1 honours degree, or its international equivalent.

Fees and Funding:

We offer a range of funding opportunities for both UK and international students. Horizon Europe fee waivers automatically cover the difference between overseas and UK fees for qualifying students.

Competition-based Presidential Bursaries from the University cover the difference between overseas and UK fees for top-ranked applicants.

Competition-based studentships offered by our schools typically cover UK-level tuition fees and a stipend for living costs for top-ranked applicants.

Funding will be awarded on a rolling basis, so apply early for the best opportunity to be considered.

For more information, please visit our postgraduate research funding pages.

How to Apply:

You need to:

• choose programme type (Research), 2026/27, Faculty of Engineering and Physical Sciences
• select Full time or Part time
• search for programme PhD ORC (7097)
• add name of the supervisor in section 2 of the application

Applications should include:

• your CV (resumé)
• 2 academic references
• degree transcripts and certificates to date
• English language qualification (if applicable)

The School of Optoelectronics (ORC) is committed to promoting equality, diversity inclusivity as demonstrated by our Athena SWAN award. We welcome all applicants regardless of their gender, ethnicity, disability, sexual orientation or age, and will give full consideration to applicants seeking flexible working patterns and those who have taken a career break.

The University has a generous maternity policy, onsite childcare facilities, and offers a range of benefits to help ensure employees’ well-being and work-life balance. The University of Southampton is committed to sustainability and has been awarded the Platinum EcoAward.