Manufactures multimode, step-index fused silica fibers with polyimide, acrylate, silicone, and custom buffers; solarization-resistant fibers; hollow silica waveguides; fiber-optic cables and assemblies; high-strength/temperature flexible fused silica capillaries; square capillaries; light-guiding capillaries; precision silica and quartz rod/tubing pieces; custom-shaped rod and tubing; multilumen tubing; telecommunications ferrules/sleeves.