Peter J. Mosley

My face

Welcome to my website! I am a lecturer in the Centre for Photonics and Photonic Materials within the Department of Physics at the University of Bath.

My research interests are in nonlinear optics and quantum optics. I use photonic crystal fibre to develop new light sources at both ends of the intensity scale: individual photon pairs for quantum optics and bright pulses of light for applications within areas such as biomedical imaging.


3rd April 2017

2nd in EPSRC photo competition

"DNA of and optical fibre", taken by Jamie Francis-Jones and Tom Wright, has been awarded overall second place in the 2017 EPSRC photography competition. Also featured in the Telegraph and the Guardian.

20th February 2017

IoP Doctoral Research Prize

Congratulations to Jamie Francis-Jones who was recently awarded the Insitute of Physics Quantum Electronics and Photonics Group Doctoral Research Prize 2017!

Early February 2017

Optica cover

We recently discovered that our image - "the photon sieve" - was featured on the (virtual) cover of the November 2016 edition of Optica! Cover available here.

January 2017


The inagural SkiPPM week in Sauze d'Oulx was a great success. We spent a lot of time looking fairly pro and again here. Meanwhile, Phil was catching some air.

20th November 2016

Publication in Physical Review A

Another exciting paper has just hit the digital shelves near you! Led by Dr Andrey Gorbach, CPPM PhD student Phil Main has developed a design for a miniature source of very high-purity heralded photons. Thanks to our great collaborators Dr Wei Ding at the Chinese Academy of Sciences in Beijing and Lijian Zhang at Nanjing University!

28th October 2016

Publication in Optica

The next publication announcement is here! Our work on single-photon source multiplexing will appear in the forthcoming edition of Optica. You can check it out here. The hard yards were done by Jamie with assistance from Rowan - nice one chaps! Thanks to the EPSRC for funding through the First Grant scheme and the NQIT Quantum Hub.

20th October 2016

Postdoctoral position available

I have a new postdoctoral research officer postion available to work on hollow-core fibre. Please see the job advert for details. Closing date is 20th November.

19th October 2016

Publication in Optics Express

Congratulations to Jamie whose work on characterisation of variation in PCF by stimulated four-wave mixing has just been published in Optics Express. See the paper here and watch this space for another publication announcement soon...

10th October 2016

Welcome newbies!

Welcome to new PhD student Olly Gibson, who is funded by the NQIT Hub to work on single photon source development. Also, starting their MPhys research project are Tom Clegg and David Bromfield - good luck chaps!

18th May 2016

Steve Yabsley show on BBC Radio Bristol

Thanks to Steve Yabsley for inviting me onto his show! If you've made it to my website through listening to the show, welcome! If not, you can listen to the interview here. Oh yeah... tickets for the Noctis concert are available through Bath Box Office... would be great to see you there...

12th May 2016

Images of Research - Best Image Award

Congratulations to Jamie and Tom for winning the Best Image Award in this year's Images of Research competition. Check out "DNA of an optical fibre".

9th May 2016

Update... at last...

A few things from the last 9 months: We have been joined by PhD student Tom Wright; I went to a great workshop in Warsaw and internationalisation event at Stellenbosh University; Jamie passed his viva and put his multiplexing results on the arXiv; Rowan is ripping it up in the lab (more details to follow); I became Director of the CPPM; Jamie became a postdoc on our Quantum Technology Hub project with NQIT; A team of Bath Physics UG students won the Society of Radiological Protection's best poster award; and I've given public talks to lively crowds both in the Raven pub and at the Bath Royal Literary and Scientific Institute.

In the next few weeks, I'll be featuring on BBC Radio Bristol's Steve Yabsley show at 12:30 on 18th May. Watch this space for papers and a long-overdue website refresh!

24th July 2015

100 seconds of photons!

Check out my Institute of Physics 100 Second Science video in which I attempt to explain how to make heralded single photons using parametric downconversion. There are also great light-based contributions from Bath researchers William Wadsworth and Jonathan Knight.

25th June 2015

Postdoctoral vacancy open

I have a new 2-year postdoctoral position available; please see the job description for details. The position is associated with the UK Quantum Technology Hub Networked Quantum Information Technologies. The closing date is 23rd July 2015.

15th June 2015

Last-minute PhD project available!

I have a new PhD project now open for applications (closing date Friday 10th July). The project will involve developing single photon sources based on optical fibre fabricated here in Bath; please see the project description for details. Due to the nature of the funding, this studentship is available to UK and European students only.

30th April 2015

arXiv photon source multiplexing papers

I should have posted this ages ago, but check out our multiplexing papers on the arXiv: spatial multiplexing and temporal multiplexing. Jamie has studied in detail the optimisation of these heralded photon source schemes in the presence of loss.

17th December 2014

Funded PhD project available!

Update - postion now filled

I have a fully-funded PhD position available to work on frequency-conversion of single photons in photonic crystal fibre. The project is associated with the Networked Quantum Information Technologies hub led by the University of Oxford. Please see the project description for details. Due to the nature of the funding, this studentship is available only to home and EU students.

12th December 2014

Southwest Quantum Technologies

The second meeting of the Southwest Quantum Technologies group will take place on 2nd-3rd February 2015. Please see website for more details.

14th October 2014

Multicore fibre characterisation paper published!

A hard summer of research has been rewarded with the publication in Optics Express of our paper on multicore fibre characterisation. The paper combines measurements and numerical techniques to reconstruct differences in propagation constant between cores in a 37-core fibre. Check it out in Optics Express or a pre-print version on the arXiv.

25th July 2014


25th July saw the inagural meeting of the Centre for Punts and Punting Methods. We have assembled a management team and engaged in preliminary research exercises.

15th May 2014

John Willis Award

I've been selected as the winner of the 2014 University of Bath John Willis Award for research and teaching. Thanks to everyone who has helped me over the last few years!

14th May 2014

Coherent VECSEL supercontinuum paper published

Keith Wilcox and his group in Dundee have successfully generated coherent spectral broadening of pulses from a vertical external cavity surface-emitting laser (VECSEL) in normal-dispersion fibre from Bath. The broadened pulses were compressed to less than half their initial duration. See the paper here.

For older news, please see the news archive.

PJM, 2012