The global optical transceiver market is projected to expand from $15.4 billion in 2025 to $34.4 billion by 2031, representing a 14.3% compound annual growth rate (CAGR). BCC Research identifies AI workload growth, hyperscale data center construction, global 5G deployment, rising data traffic and enterprise cloud migration as the main demand drivers. Hyperscalers are deploying 400G and 800G modules for GPU cluster connectivity, while the sector is moving from 100G toward 400G, 800G and emerging 1.6T architectures. North America is the largest regional market, with a 40.5% share. Silicon photonics, coherent technology, co-packaged optics (CPO, optics integrated alongside processing hardware), PAM4 digital signal processing and dense wavelength-division multiplexing (DWDM) are supporting higher-density, lower-power designs. BCC Research says the market offers a long-cycle infrastructure growth opportunity but faces margin pressure, thermal-management challenges and high research and development costs. Investors are also advised to monitor CPO adoption timelines, which could create displacement risks for discrete transceiver vendors and upside for companies with early capabilities.