Dr. Lei Wei is an associate professor at Nanyang Technological University in Singapore. His main research interests are fiber-based devices, fiber sensors, multi-functional fibers, bio-fiber interfaces, and in-fiber energy generation and storage. Dr. Wei has published 1 book, 3 book chapters, and over 300 journal and conference papers. He serves as the director of Centre for Optical Fibre Technology (COFT) at Nanyang Technological University. He also serves as the chairman of the IEEE Photonics Society Singapore Chapter and the chair of the Optica Singapore Section.