Recently, WHRG Information Technology Group was selected as the "Invisible Champion Manufacturing Enterprise" by the Ministry of Industry and Information Technology of China. WHRG relies on WH Optical Fiber Research Institute for more than 40 years of optical fiber technology precipitation, has been deeply engaged in the research and industrialization of special optical fiber technology, and has developed services in optical inertial technology, optical fiber laser technology, cutting-edge communication applications and scene customization development. A full range of silica-based special optical fibers of all types, and a provincial-level optical fiber technology research center, a provincial engineering technology research center, and a special optical fiber engineering center for sensing and lasers. An important part of the State Key Laboratory of Optical Fiber Communications and Networks.
In recent years, with the application of high-precision and miniaturized fiber optic gyroscopes in precision navigation and positioning systems, high-quality, high-performance thin-diameter polarization-maintaining fibers, polarization-maintaining photonic crystal fibers and other technologies are required to solve the core original components. WHRG has invested heavily in research and development, and has upgraded and expanded its process and testing equipment. It has developed and manufactured 80/135, 60/100 series of thin-diameter polarization-maintaining fibers, thin-diameter polarization-maintaining photonic crystal fibers, and hollow band gap photons. Crystal fiber and other series of products have been widely used in the field of inertial technology requirements; the hollow band gap photonic crystal fiber has successfully reduced the loss from 30dB/km to the order of 10dB/km, realizing China's "follow-up" in this segment. A leap to "leader". At present, WHRG has provided users with tens of thousands of kilometers of series of polarization-maintaining fibers.
China's fiber laser technology is developing rapidly, and laser fiber is its key component. WHRG has introduced internationally advanced rodmaking equipment, digested, absorbed and re-innovated. Relying on internationally advanced PCVD equipment and drawing towers with independent intellectual property rights, WHRG has realized the full range of active and passive products for pulsed and continuous fiber lasers. For the industrialization of a kind of special optical fiber, the products including 10/130, 20/130, 30/250, 14/250, 20/400 series of double-clad ytterbium-doped fiber and triple-clad ytterbium-doped fiber products have been developed, and the corresponding products The series of passive fibers and energy-transmitting fibers and many other categories can achieve good compatibility with existing fiber laser systems. At the same time, WHRG can customize various types of energy transmission fibers, including 200/220, 300/330, 400/440, 600/660, 800/880 and other series, which can be used for solid-state laser pigtail output and pump pigtail bundle , High-power laser flexible output, laser imaging and laser lighting and other fields. In addition, WHRG's series of special laser fibers use full gas phase MCVD rare earth high-temperature doping technology, which can achieve high consistency in the axial and radial directions and batches of ytterbium-doped fibers, and use microwave plasma PCVD technology to achieve high-performance Passive optical fiber preparation, thus realizing high quality and high power transmission.
