500 mW O-Band Photonic-Crystal Surface-Emitting Lasers and Scalable 2D Arrays for Multi-Channel CPO Applications. - Yuhki Itoh; Takeshi Aoki; Makoto Ogasawara; Kosuke Fujii; Yusuke Sawada; Shun Kimura; T. Hoya; Hiroyuki Yoshinaga; Naoki Fujiwara; Hideki Yagi; Masaki Yanagisawa; Masahiro Yoshida; et al. (OFC, 2026)