Optical · Photonics · UV & Laser Systems
Quartz Glass
Engineered for
Light Itself
FGQuartz manufactures precision optical quartz glass components for laser systems, spectroscopy instruments, UV lithography, and scientific research since 2005. Our fused silica optics cover the full photonic range — deep ultraviolet at 150 nm through near-infrared beyond 3 µm — in both JGS1 and JGS2 grades.
OPTICAL QUARTZ
Est. 2005
Lianyungang, Jiangsu, China
Global Export
Americas · Europe · Asia-Pacific
Precision Polishing
Optical surfaces to drawing spec
JGS1 & JGS2
Full grade range available
Custom CNC
Prototype to production
Product Range
Optical Quartz Glass Components
FGQuartz manufactures a broad range of optical fused silica components for UV, visible, and infrared systems. Standard catalogue items ship from stock; custom geometries are produced to customer drawings from the same facility in Lianyungang.
UV & Optical Windows
Plane-parallel windows in fused silica for viewports, beam entry and exit windows, pressure barriers, and environmental protection for optical systems. The defining characteristic of a good optical window is minimum wavefront distortion — a function of glass homogeneity, surface flatness, and parallelism between the two faces. FGQuartz windows are ground and polished to customer-specified surface quality and figure requirements, with both standard circular and rectangular geometries plus custom shapes available. AR coatings for UV, visible, and NIR bands can be applied on request through partner coating houses.
Lenses: Plano-convex, Plano-concave & Cylindrical
Fused silica lenses are specified wherever UV transmission, laser damage resistance, or environmental durability rules out conventional optical glass. Plano-convex lenses focus or collimate beams; plano-concave lenses diverge beams. Cylindrical lenses focus light to a line — essential for laser scanning, barcode reading, and laser sheet illumination. FGQuartz produces all three types in JGS1 and JGS2 grades, with diameters from a few millimetres to several hundred millimetres. Custom radii and aspherical surfaces are available on request.
Prisms
Optical prisms redirect, invert, or disperse light through total internal reflection or refraction. Common types in fused silica include right-angle prisms for beam deflection and retro-reflection, equilateral prisms for dispersion and wavelength separation, Dove prisms for image rotation, and Porro prisms for optical path folding. Because fused silica has low chromatic dispersion across the visible and near-UV, it produces less chromatic aberration than flint glass alternatives when used as a dispersing element. FGQuartz machines and polishes prisms with the number of optically active faces required by the application.
Application Fields
Optical Quartz Glass Across Photonics & Science
Select an application field to understand which quartz components are used, why fused silica is the material of choice, and what FGQuartz supplies into that market.
Material Grades
Choosing the Right Fused Silica Grade for Your Optical Quartz Glass Application
Fused silica is manufactured by several different routes that produce different optical properties. The right grade depends on your wavelength range, laser exposure, and application environment.
Technical Knowledge
Working with Optical Quartz Glass
Specifying and applying optical quartz glass correctly requires understanding how grade, form, surface condition, and environment interact with each other and with your optical system.
Manufacturing Capabilities