QUDOS 5th Plenary Meeting

Researchers from the QUDOS consortium come together regularly to share the latest developments of their collaborative research work with the QUDOS External Advisory Board.  On 19 September 2024, some 30 researchers from the University of Cambridge, Cardiff University, University of Southampton and UCL gathered at Wellcome Collection, London for the fifth QUDOS plenary meeting.  Wellcome Collection is a venue run by Wellcome Trust which fosters collaborative and supportive research environments across a diversity of disciplines following the legacy of the late pharmaceutical entrepreneur, Sir Henry Wellcome.  The collaborative nature of QUDOS cannot be better highlighted by the choice of the venue for the meeting. 

Alwyn Seeds of UCL, Principal Investigator of QUDOS, started the plenary meeting by highlighting the major milestones achieved by the team towards the monolithic integration of all required optical functions on silicon. 

Alwyn Seeds, UCL

Researchers from the four universities then gave talks on the developments of their specific projects. 

Huiwen Deng, Chong Chen and Hui Jia of UCL first talked about high temperature operation of InAs/GaAs quantum dots lasers, GaAs buffer layers on patterned silicon substrates, and C-band quantum dots lasers.    

Frederic Gardes of the University of Southampton talked about the progress on laser integration manufacturing and surface engineering at wafer scale. 

Fred Gardes, University of Southampton

Yun Long, Peter Smowton and Dun Qiao of Cardiff University then talked about the QUDOS PDK, absorption and gain data, and gratings and the approach for tunable lasers elements. 

Finally, Christina Vivian of UCL, Ziyao Zhang and Qixiang Cheng of the University of Cambridge gave talks on integrated extended cavity lasers and fast silicon modulator, dilated space-and-wavelength selective crosspoint optical switch, and chip-scale sensors for spectroscopic metrology. 

Researchers from the four universities also took the opportunity to highlight their research work through presentations and poster displays. 

In the plenary meeting, we also showcased the QUDOS video and showed the new banner summarising the achievements of the QUDOS Programme Grant.