GLSUN - 20+ Years' Professional Manufacturer
Who We Are

20+ Years' Experience Professional Manufacturer

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. With widely production 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.

Own design & production from DFB LD chip, passive components, modules and rackmount in fiber optic and data market.

Guilin Lasercom Technologies Co., Ltd.
Guilin Chip-Tek Technology Co., Ltd.
Guilin Optoseal Science and Technology Co., Ltd.
Guilin GLsun Optics Technology Co., Ltd.
Guilin GLsun Integrated Technology Co., Ltd.

Why Choose Us
20+ years' Manufacturer

Leading DFB laser chip, optical device & equipment
manufacturer in China.

Series of National Patents

More than 120 patents.

International Certifications

Certificated by ISO9001:2015 & ISO14001:2015

International Certifications

Certificated by ISO, ROHS, REACH

High Industrial Standard

Qualified by Telcordia Standard

High-end Production

Advanced Process & Equipment for Production

Professional Lab & Real-running

Testing for Quality Stability

Expert Solutions

Customized cost-effective Solution

Technical Support

Prefessional Aftersale Technical Support

Our Story