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Development Status of Domestic Optical Modules

China's domestic optical module industry has rapidly advanced, achieving significant localization in low- and mid-range modules while actively pursuing high-end technologies like silicon photonics, VCSEL, and LPO.

Market and Policy Context

China has become the world's largest production and consumption market for optical modules, driven by the expansion of AI computing, 5G networks, and large-scale data centers such as the "East Data West Computing" project. National policies, including MIIT guidelines and the High-Quality Development Action Plan for Computing Power Infrastructure, strongly support localization and technological self-reliance, encouraging collaboration between industry, academia, and research institutions.

Technological Progress

Core Chips: Domestic suppliers have achieved mass production of 25G and 50G DFB and EML laser chips, with the self-sufficiency rate for 25G+ laser chips exceeding 50%.

High-end DS

P chips remain largely dependent on international suppliers, representing a key bottleneck for full autonomy. Emerging Technologies: Chinese companies are actively developing silicon photonics, VCSEL, and LPO (Linear Drive Pluggable Optics) solutions. Silicon photonics offers cost advantages and high integration for distances over 100m, while VCSEL modules provide low power consumption.

LP

O modules are being tested for 100G and 200G/lane applications, aiming to reduce latency and power usage.

High-

Speed Modules: Domestic 100G QSFP28 ZR4 modules have achieved 80km transmission at

Development Status of Domestic Optical Modules
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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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