通信行业行业周报：春节科技观点前瞻系列报告-光模块未来空间广阔，空芯光纤迎新机

Investment Rating - The report maintains a positive investment rating for the communication industry [2]. Core Insights - The communication sector has shown a significant increase, with the industry index rising by 6.13% over the past week, outperforming major indices such as the Shanghai Composite and Shenzhen Component [4][8]. - The report highlights the rapid growth in the data communication optical module market, driven by AI applications, with expectations for the market size to exceed $9 billion in 2024 and a nearly fourfold increase in shipments of 400G and 800G optical modules [26][27]. - The development of hollow-core fiber technology is noted as a disruptive innovation, attracting attention despite the overall market facing cyclical pressures [32][33]. Summary by Sections 1. Weekly Market Performance - The communication sector index increased by 6.13%, with sub-sectors like optical devices and vehicle/internet of things performing particularly well, with gains of 14.46% and 10.31% respectively [4][8][15]. 2. Industry Development and Key Events - The data communication optical module market is projected to grow significantly, with a forecasted market size of over $9 billion in 2024 and a shipment increase of nearly four times for high-speed modules [26][27]. - Despite a cyclical downturn in the optical fiber and cable industry, advancements in hollow-core fiber technology are creating new opportunities, with expectations for a market recovery starting in 2025 [32][33]. 3. Major Equipment Manufacturers and Operator Bidding - In 2024, the smartphone market in mainland China is expected to recover, with total shipments reaching 285 million units, a 4% increase year-on-year, and Huawei achieving a notable 37% growth [34][35]. - ZTE has successfully completed the first industry pilot of a 50G PON symmetrical miniaturized optical module, marking a significant step towards commercialization [40][41]. - China Mobile has announced large-scale procurement for 5G micro-power digital repeaters, indicating strong demand for such equipment in the 5G era [42][45].