VCSEL Light Coupling to a Waveguide to Interconnect XPUs and HBMs on Interposer Chips. - Park, Sahnggi; Kim, Kyungeun; Rhee, Hyun-Woo; Kim, Jae-Yong; Kim, Namki; Park, Hyunjong; Park, Hyo-Hoon (Photonics, 2025)