Founded in 2001, Guilin GLsun Science and Tech Group Co., Ltd as a key member of high-tech enterprises of China National Torch Plan, specializes in high-level semiconductor laser diode chips development, production and packaging, focus on both Cloud Data Center and Telecom Networking Inter-connectivity. 

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With a wide product portfolio, our products including DFB LD chips, TO-CAN, high data rate passive optical devices and modules, function modules, monitoring, and system protection equipment, etc. 

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GLsun is a leading China semiconductor manufacturer, offers its customers low-cost, reliable optical products, fiber optic network solutions with superior performance in volume, GLsun strives to develop innovative solutions leveraging III-V semiconductor laser chip technology to interconnect the world for the future. Learn more about GLsun Group.