The 12th Advanced Lasers and Photon Sources Conference (ALPS2023) will be held on April 18-21, 2023 at PACIFICO Yokohama, Japan, in the framework of the Optics & Photonics International Congress 2023 (OPIC2023), which consists of 13 optics-related scientific conferences. In ALPS2022, we intend to discuss the recent topics of progress in lasers and photonic science. Specially, we expect broad research works of laser sources covering the fundamental researches to industrial applications. ALPS2023 student paper award will be given for the outstanding student paper presentations in ALPS2023.