锐科激光(300747.SZ)：铒镱共掺光纤则具备良好光束质量与高转化效率，可实现1.5μm波段高功率激光输出及放大

Core Viewpoint - Ruike Laser (300747.SZ) is actively involved in the production of Erbium-doped fibers, which are essential for high-performance optical communication systems, particularly in DWDM optical transmission networks and CATV networks [1] Group 1: Product Features - The Erbium-doped fiber exhibits high gain, broad bandwidth, and low noise at the 1.5μm wavelength, aligning well with the low-loss window of communication fibers [1] - Yb-Er co-doped fibers provide excellent beam quality and high conversion efficiency, enabling high-power laser output and amplification at the 1.5μm wavelength [1] - The unique doping system allows for customizable control over the absorption coefficient and gain spectrum, catering to specific customer requirements [1]