Photonics and Optical Communications, School of Electrical Engineering and Telecommunications, University of New South Wales (UNSW) Sydney, 2052, Australia

Centre for Micro-Photonics, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia

Centre for Medical Radiation Physics, University of Wollongong, Wollongong NSW 2522, Australia

¹ School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, NSW 2052, Australia

² Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide SA 5005, Australia

³ Laser Physics and Photonic Devices Laboratories, School of Engineering, University of South Australia, Mawson Lakes SA 5095, Australia

¹ Photonics & Optical Communications, School of Electrical Engineering, University of New South Wales, Sydney 2052, NSW, Australia

² Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200072, China

³ State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China

⁴ Key Lab of In-fiber Integrated Optics, Ministry of Education, Harbin Engineering University, Harbin 150001, China

⁵ Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China

School of Electrical Engineering and Telecommunications, University of New South Wales, Kensington, NSW 2052, Australia

¹ School of Mechanical and Electrical Engineering, University of Southern Queensland, Toowoomba QLD 4350, Australia

² Centre for Future Materials, University of Southern Queensland, Toowoomba QLD 4350, Australia

³ University of Kirkuk, College of Engineering, Kirkuk, Iraq

¹ Photonics and Optical Communications, School of Electrical Engineering and Telecommunications,University of New South Wales (UNSW) Sydney, 2052, Australia

² Henan Key Laboratory of Laser and Opto-Electric Information Technology, School of Information Engineering, Zhengzhou University, Zhengzhou 450052, China

³ Warsaw University of Technology, 00-665, Warsaw, Poland

⁴ interdisciplinary Photonics Laboratories (iPL), School of Electrical and Data Engineering, University of Technology Sydney, and School of Chemistry, The University of Sydney, NSW 2007 & 2006, Australia

State Key Lab of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering,Shanghai Jiao Tong University, Shanghai 200240, China

Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan 430074, China