LBTEK offers UVFS substrate wedge plate beamsplitters, suitable for beam splitting sampling and interference detection in laser systems. The UVFS (UV Fused Silica) material features an extremely low Coefficient of Thermal Expansion and excellent wide-spectrum transmission from ultraviolet to near-infrared, ensuring long-term stable operation of the device in high-power laser environments. Within the working spectral range, the device provides a stable and controllable splitting ratio. The beam is split at the beamsplitter coating surface without introducing significant wavefront distortion. Ordinary parallel plate beamsplitters generate parasitic reflections from parallel end faces, creating ghost images that interfere with the optical path. LBTEK's wedge angle substrate design effectively offsets the reflected light from the front and rear surfaces, preventing ghost image stray light from affecting the system's optical performance.