Research
Research groups
Current research
Dr W. Zhang focuses on developing novel modulator/detector mechanisms and devices to address the future development trend of high-speed transceiver technologies and programmable photonics for AI and 5G applications. His present research/project covers the following fields:
- Universal silicon photonics resonators for light detection and modulations, studying co-design of light detection and modulation within single silicon waveguide PN junction for error-free high-speed modulations and detection simultaneously.
- High bandwidth silicon modulators for beyond 100 Gbaud communications, developing new methods to break the bandwidth bottleneck.
- Photonic integration system, including electronic and photonic co-design and co-integration, and universal Ring resonator transceiver integration with comb light source.
- Advanced Silicon photonics fabrication, developing new structures based on CORNERSTONE foundry facilities to address future trends of silicon photonics technologies, such as MOS waveguide for highly efficient modulators, 3D buried tapers to bridge thick waveguide and thin waveguide for optical fibre packaging and laser integration.
- Novel modulation mechanisms, verifying new physical effects in silicon, such as using large DC electric field to excite/enhance linear electro-optic effect for microwave photonics and cryogenic communications applications.
Publications
31 publications
Page 1 of 4
Ke Li,
Bigeng Chen,
Han Du,
Dehn Tran,
Callum Littlejohns,
Adam Scofield ,
Guomin Yu,
Roshanak Shafiiha,
Aaron Zilkie,
, 2023
, Nature Photonics
, 17 (3) , 273–279
Type: article
Ke Li,
Bigeng Chen,
Han Du,
Dehn T. Tran,
Callum G. Littlejohns,
Adam Scofield,
Guomin Yu,
Roshanak Shafiiha,
Aaron Zilkie,
, 2023
Type: conference
Xiansong Fang,
Ke Li,
Fan Yang,
Shenghao Liu,
Wei Cao,
Callum G. Littlejohns,
Dehn Tran,
Fanfan Meng,
Han Du,
& Fan Zhang
, 2022
Type: conference
Georgi V. Georgiev,
Wei Cao,
Li Ke,
Graham T. Reed,
, 2022
, Sensors
, 22 (24)
DOI: 10.3390/s22249620
Type: review
Shenghao Liu,
Fanfan Meng,
Callum G. Littlejohns,
Han Du,
Wei Cao,
Vadivukkarasi Jeyaselvan,
Dehn Tran,
& Li Ke
, 2022
Type: bookChapter
Han Du,
Wei Cao,
Callum Littlejohns,
Denh Tran,
, 2021
, IEEE Photonics Technology Letters
Type: article
Wei Cao,
Shenghao Liu,
Callum G. Littlejohns,
Ke Li,
Ying Tran,
Han Du,
Zhengqi Ren,
, 2021
, Optics Express
, 29 (10) , 14438--14451
DOI: 10.1364/OE.418285
Type: article
Kapil Debnath,
Bigeng Chen,
Ke Li,
Shenghao Liu,
Jamie Dean Reynolds,
Ali Z. Khokhar,
Callum Littlejohns,
James J Byers,
Muhammad K. Husain,
Shinichi Saito,
, 2021
, IEEE Journal of Lightwave Technology
, 39 (1) , 201--207
Type: article
J. D. Reynolds,
B. Chen,
H. Du,
D. T. Tran,
C. G. Littlejohns,
, 2021
Type: conference
M. Ebert,
J.D. Reynolds,
B. Chen,
H. Du,
D.T. Tran,
C.G. Littlejohns,
, 2021
, Optica
, 8 (8) , 1102--1108
Type: article
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Biography
University of Southampton, UK:
01/2022 – 08/2023 | Senior Research Fellow, Optoelectronics Research Centre
07/2017 – 12/2021 | Research Fellow, Optoelectronics Research Centre
Universite Paris-Saclay, France:
01/2017 – 07/2017 | Postdoctoral researcher, Center for Nanosciences and Nanotechnologies (C2N)
09/2013 – 01/2017 | PhD, Center for Nanosciences and Nanotechnologies (C2N)