Author Affiliations

Michael J. Strain,^1,2,* Xinlun Cai,^3,4 Jianwei Wang,³ Jiangbo Zhu,^4,5 Lifeng Chen,⁵ Martin Lopez-Garcia,⁵ Mark G. Thompson,³ Marc Sorel,² and Siyuan Yu^4,5

¹Institute of Photonics, University of Strathclyde, Glasgow, UK.

²School of Engineering, University of Glasgow, Glasgow, UK.

³Centre for Quantum Photonics, University of Bristol, Bristol, UK.

⁴State Key Laboratory of Optoelectronic Materials and Technologies and School of Physics and Engineering, Sun Yatsen University, Guangzhou, China.

⁵Photonics Group, Merchant Venturers School of Engineering, University of Bristol, UK

^*Corresponding author: Michael.strain@strath.ac.uk