1. Aston Institute of Photonic Technologies (AIPT) Aston University Aston Triangle Birmingham B4 7ET UK
2. Non-linear Dynamics and Fiber Optics, Consejo Superior de Investigaciones Científicas Instituto de Óptica “Daza de Valdés” (IO-CSIC) Calle de Serrano, 121 28006 Madrid Spain
3. Faculty of Science and Engineering University of Hull Hull HU6 7RX UK
4. Key Laboratory of Specialty Fiber Optics and Optical Access Network Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication Shanghai Institute for Advanced Communication and Data Science Shanghai University Shanghai 200444 China
5. School of Engineering, Computing and Mathematics, Faculty of Science and Technology University of Plymouth Plymouth PL4 8AA UK
6. Nanophotonics Research Laboratory Department of Electrical Engineering, Computer Engineering and Informatics Cyprus University of Technology 31 Archbishop Kyprianos Lemessos 3036 Cyprus
7. School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China