Research Research groups Member of: Photonic Systems, Circuits and Sensors Group Silicon Photonics Research projects Active projects One-Stop-Shop Open Access to Photonics Innovation Support for a Digital Europe Researchers: Sponsor: European Union Layered Materials Research Foundry (LMRF) Researchers: Sponsor: EPSRC CORNERSTONE 2.5 Researchers: Sponsor: EPSRC C-PIC Researchers: Completed projects H2020 ACTPHAST4R - UCL- Callum Littlejohns Researchers: Sponsor: European Union Rapid assessment of drinking water using waveguide-enhanced on-chip Raman Spectroscopy Researchers: Sponsor: Research England Publications 119 publications Page 1 of 12 Fully-integrated silicon wavelength converter with on-chip idler filtering Hao Liu, Kyle Bottrill, Valerio Vitali, Iosif Demirtzioglou, Martin Skenderas, Nura Adamu, Cosimo Lacava, Xingzhao Yan, Mehdi Banakar, Ying Tran, Martin Ebert, James Le Besque, Callum Littlejohns, David Thomson & Periklis Petropoulos, 2024 Type: conference Universal silicon ring resonator for error free transmission links Junbo Zhu, Weiwei Zhang, Ke Li, Bharat Pant, Martin Ebert, Xingzhao Yan, Mehdi Banakar, Dehn T. Tran, Callum G. Littlejohns, Fuwan Gan, Graham Reed & David J. Thomson, 2023, Photonics Research, 12(2) DOI: 10.1364/PRJ.509237 Type: article High-speed 4 × 4 silicon photonic plasma dispersive switch, operating at the 2 µm waveband Jiawei Wang, Jia Xu Brian Sia, Xiang Li, Xin Guo, Wanjun Wang, Zhongliang Qiao, Callum G. Littlejohns, Chongyang Liu, Graham T. Reed, Rusli Rusli & Hong Wang, 2023, Optics Express Type: article Micro-transfer printed InGaAs photodetector on SOI platform Hemalatha Muthuganesan, Enrica Mura, Emanuele Pelucchi, Callum Littlejohns, Xingzhao Yan, Mehdi Banakar, Ying Tran & Brian Corbett, 2023 DOI: 10.1109/SiPhotonics55903.2023.10141914 Type: conference The superlinear carrier absorption enhanced silicon MOS micro-ring modulator Weiwei Zhang, Martin Ebert, Ke Li, Bigeng Chen, Xingzhao Yan, Han Du, Mehdi Banakar, Dehn T. Tran, Callum G. Littlejohns, Adam Scofield, Guomin Yu, Roshanak Shafiiha, Aaron Zilkie, Graham Reed & David J. Thomson, 2023 DOI: 10.1109/SiPhotonics55903.2023.10141899 Type: conference Harnessing plasma absorption in silicon MOS ring modulators Weiwei Zhang, Martin Ebert, Ke Li, Bigeng Chen, Xingzhao Yan, Han Du, Mehdi Banakar, Dehn Tran, Callum Littlejohns, Adam Scofield , Guomin Yu, Roshanak Shafiiha, Aaron Zilkie, Graham T. Reed & David Thomson, 2023, Nature Photonics, 17(3), 273–279 DOI: 10.1038/s41566-023-01159-3 Type: article Adaptive delay lines implemented on a photonics chip for extended-range, high-speed absolute distance measurement C.R. Coggrave, P.D. Ruiz, J.M. Huntley, C.E. Nolan, A.P. Gribble, H. Du, M. Banakar, X. Yan, D.T. Tran & C.G. Littlejohns, 2023 DOI: 10.1117/12.2647526 Type: conference Up to 170Gbaud optical interconnects with integrated CMOS-silicon photonics transmitter Xiansong Fang, Ke Li, David J. Thomson, Fan Yang, Shenghao Liu, Weiwei Zhang, Wei Cao, Callum G. Littlejohns, Xingzhao Yan, Martin Ebert, Mehdi Banakar, Dehn Tran, Fanfan Meng, Han Du, Graham T. Reed & Fan Zhang, 2022 DOI: 10.1109/ACP55869.2022.10088674 Type: conference Wafer-scale demonstration of low-loss (∼0.43 dB/cm), high-bandwidth (>38 GHz), silicon photonics platform operating at the C-band Jia Xu Brian Sia, Xiang Li, Jiawei Wang, Wanjun Wang, Zhongliang Qiao, Xin Guo, Chee Wei Lee, Ashesh Sasidharan, S. Gunasagar, Callum G. Littlejohns, Chongyang Liu, Graham T. Reed, Kian Siong Ang & Hong Wang, 2022, IEEE Photonics Journal, 14(3) DOI: 10.1109/JPHOT.2022.3170366 Type: article Beyond 100Gb/s from a single silicon MZI modulator Graham T. Reed, Shenghao Liu, David J. Thomson, Weiwei Zhang, Fanfan Meng, Xingzhao Yan, Callum G. Littlejohns, Han Du, Wei Cao, Mehdi Banakar, Martin Ebert, Vadivukkarasi Jeyaselvan, Dehn Tran, Periklis Petropoulos & Li Ke, 2022 DOI: 10.1364/cleo_si.2022.sm5g.1 Type: bookChapter Pagination 1 2 3 4 5 … Next page Next