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长城证券-光模块行业系列报告之一：复盘光模块发展，持续看好光通信产业机会-230420

◆ 竞争格局：产能不断东移，供应链位置稳定，国内光模块厂商市场份额占据半壁江山。截止2021年，国内光模块厂商市场份额全球前十占比六个席位，已经完成国产化替代，第一梯队厂商占据海外互联网大厂核心供应链位置。 ◆ 技术周期：AIGC发展驱动800G新一轮技术周期加速推进。2022年下半年起，国内光模块第一梯队厂商陆续进行800G的海外送样及小批量，随着AIGC的发展，800G光模块产品未来有望快速爬

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