Dr. Dragic from the University of IL has developed a low-quantum defect fiber-based laser. This invention assists with the management of thermal energy (quantum defect heating) which can lead to failure of an optical fiber when power scaling fiber-based lasers. A Yb-doped multicomponent flurosilicate optical fiber reduces quantum defect heating in the fiber-based laser. Fiber-based lasers have applications in the automotive, medical, and electronics industries.