This special issue calls (Optics Communications Journal) for high quality, theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. A few best papers (8 - 10 papers) from PHOTOPTICS 2017 will be invited to prepare an extended and revised version of the paper presented at the conference venue. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing.