The device is equipped with a higher-power femtosecond laser as the light source, with a maximum single-pulse output energy of 10 μJ. The laser's pulse sequence is precisely adjustable, enabling pulse-count processing at any position within the working space. The system also incorporates a water-cooled spatial light modulator for correcting aberrations in high-intensity laser beams, accommodating processing requirements for various materials with different refractive indices and distributions. Additionally, the spatial light modulator can be used to shape the laser spot, facilitating diverse processing modes such as direct line writing, direct surface writing, and multi-focal-point processing. The system addresses two major challenges in femtosecond processing of solid materials: fiber grating fabrication and waveguide processing in transparent solid materials, with targeted optimizations for each. For fiber grating fabrication, the system is equipped with a high-precision automatic alignment device to ensure rapid alignment of the processing focal spot with the fiber core. It is compatible with various fiber types, including single-mode single-core fibers, multimode fibers, and single-mode multi-core fibers. When paired with an automatic winding machine, it enables kilometer-scale fiber processing. For waveguide fabrication in transparent crystals, the system features 3D processing path planning tailored to waveguide shapes, allowing processing along arbitrary spatial paths. Furthermore, the system integrates phase-contrast microscopy functionality, enabling immediate characterization of refractive index changes in the material post-processing, thereby solving the challenge of evaluating processing results in transparent materials.