About Us
Company Profile
Entropy Light, founded in 2025 and headquartered in Longhua District, Shenzhen, Guangdong Province, is a high-tech enterprise specializing in the R&D, manufacturing, and sales of passive fiber optic components. The company operates a 500-square-meter modern facility with over 30 employees, including more than 10 technical professionals.
Entropy Light products cover most visible light and near-infrared wavelengths, including the 400nm–2050nm band: fiber collimators, isolators, circulators, couplers, combiners, polarizers, wavelength division multiplexers (WDMs), bandpass filters, mirrors, rotators, attenuators, and gratings. We can also produce these devices using various fiber types, such as single-mode, multi-mode, polarization-maintaining, double-clad, specialty, RC80, and custom fibers. For high-power applications, our 1.0µm isolators deliver up to 100W continuous wave and 30kW peak power for ultrafast lasers.
We are dedicated to delivering fiber optic components across all industries that utilize them. Through our expertise, we empower customers to achieve continuous breakthroughs in their respective fields. Our key application areas include: fiber optic sensing, biomedical engineering, fiber optic communications, fiber optic lasers, aerospace, radar detection, optical measurement, quantum communication, and ultrafast lasers. We bring extensive supply experience in quantum communication, ultrafast lasers, medical OCT, and machine vision. In established markets such as EDFA, high-power EDFA, and DTS sensing, we maintain stable batch shipments. To better serve the domestic market, we have shifted our focus inward. In our professional operations, we uphold the principle of "finding excellence in the ordinary and craftsmanship in the details," providing trusted customers with fast, efficient, honest, and enthusiastic service.
Our Advantages
Excellent Product Quality
Strictly follow the ISO9001 quality management system, implement full-process optical performance control, and conduct complete optical testing for every polarization-maintaining component to ensure product specification consistency.
- •High-precision optical coupling and packaging to ensure stable extinction ratio, insertion loss, and polarization-dependent loss.
- •Complete set of optical testing instruments; every unit undergoes full inspection before shipment.
- •High yield with low batch-to-batch performance variation
Extensive R&D and Manufacturing Expertise in Optical Devices
Years of deep expertise in polarization-maintaining fiber optic components, serving numerous customers across optical communication, research, and laser industries. We understand diverse customization needs for polarization devices.
- •Focus on R&D and manufacturing of various polarization-maintaining, high-power, and specialty components.
- •Serving hundreds of scientific research institutions and industrial enterprise customers
- •Covering industries such as automotive, electronics, and machinery
Complete Technical Support
Rapid technical support with product selection guidance, sample assistance, and after-sales technical guarantee.
- •7×24 hours of online technical consultation support
- •Quickly respond to customer technical inquiries within 24 hours
- •Provide sample testing and selection solution guidance
- •Dedicated technical support, full product documentation and test report delivery
Corporate Culture
Mission
Deliver high-quality, highly reliable polarization-maintaining fiber optic components and optical communication solutions to advance the laser, scientific research, and optical communications industries.
Vision
To become a leading domestic and internationally recognized manufacturer of polarization-maintaining optical components.
Values
Integrity-driven, focused, and professional. We innovate technologically and pursue win-win partnerships.