The Optical Coated Fused Silica Tube is a precision optical component with an outer diameter of 12mm, an inner diameter of 10mm and a length of 152mm, manufactured from high-purity fused silica. The tube wall is uniform and free of bubbles and striae, providing a clean optical path for light transmission. Anti-reflection coating, cut-off coating or beam splitter coating can be applied on the inner and outer walls as required, with strong adhesion and a uniform pinhole-free surface. Thanks to the ultra-low thermal expansion coefficient and excellent temperature and chemical resistance, the tube delivers stable optical transmittance and cut-off performance in demanding spectrometer and light source applications.

• High-purity fused silica substrate: The uniform tube wall is free of bubbles and striae, ensuring clean and stable light transmission.
• Customizable optical coatings: AR coating, cut-off coating or beam splitter coating can be applied on inner and outer walls as required.
• Strong adhesion with pinhole-free surface: The coating bonds firmly and evenly, maintaining consistent optical performance over time.
• Ultra-low thermal expansion: High temperature and acid & alkali resistance keep the tube crack-resistant under thermal shock.
• Stable optical performance: Transmittance and cut-off characteristics remain consistent, supporting reliable spectral measurements.

The Optical Coated Fused Silica Tube is designed for optical and analytical systems that require controlled light transmission. It is widely used as an optical sleeve for spectrometers, guiding light through the instrument with stable transmittance. In illumination systems, the tube serves as a UV and IR light source component, with coatings tailored to pass or block specific wavelength bands. The component is also adopted in spectral testing equipment, where its precise dimensions and optical characteristics support accurate measurements. In fluorescence analyzers, the coated tube helps manage excitation and emission light paths. Additionally, the tube functions as a standard optical attenuation part, providing repeatable optical performance for calibration and comparison.

• Precision machining for small tube diameter: Tight dimensional tolerance ensures accurate fit and consistent optical geometry.
• Customizable coating process: Coating parameters can be tailored to meet specified wavelength optical indicators.
• Peel-resistant coating with consistent transmittance: The coating stays stable under high temperature, and the tube can be assembled with doped glass tubes as complete sets.