Highly nonlinear optical fibers achieve spectral broadening of pulses based on nonlinear effects. Compared to other materials or conventional optical fibers, our structure is based on complex and versatile microstructured optical fibers. Through further optimization and adjustment, it exhibits enhanced dispersion-tuning capabilities, enabling highly efficient optical frequency conversion. Light source systems utilizing this type of fiber can be widely applied in fields such as spectral analysis, optical fiber testing, and sensing.