Fused Silica vs. Optical Glass

It features an extremely low coefficient of thermal expansion, high thermal stability, and a much higher laser damage threshold, making it ideal for high‑power laser applications. Fused silica also provides broad spectral transmittance, covering ultraviolet, visible, and infrared bands.

While standard optical glass offers excellent cost‑effectiveness and processability for general imaging and lighting systems, fused silica delivers outstanding stability and reliability under high‑power, high‑temperature, and harsh working conditions.

This combination of advantages makes fused silica the preferred material for laser focusing lenses, collimating lenses, and other precision optical components in advanced industrial and medical equipment.