High Temperature >35GHz Bandwidth Oxide-Confined VCSELs for 200G-PAM4 Links. - Yoshiaki Watanabe; Terukazu Naruse; Kota Tokuda; Takahiro Koyama; Masaki Shiozaki; Naoki Jogan; Toshiharu Kiuchi; Hidekazu Kawanishi; Osamu Maeda (OFC, 2026)