Core Viewpoint - Sanan Optoelectronics (600703.SH) is expanding its product offerings to include chips for 400G optical modules used in data centers and is working on certification for 800G products, indicating a strategic focus on high-end technology applications in the future [1] Group 1 - The company can provide chips for both the transmission and reception of 400G optical modules [1] - Sanan Optoelectronics is actively pursuing certification for its 800G products [1] - The company aims to continue expanding into high-end technology application markets [1]