Precision Optical Fiber Tip Coating Solutions

Optical coatings on fiber tips are applied to enhance transmission, reduce back reflections, or provide wavelength-selective filtering at the interface between the fiber and the optical system. They are commonly used in telecommunications, sensing, laser delivery systems, and medical instruments.

Typical coatings include anti-reflective (AR) coatings, high-reflective (HR) coatings, partial reflectors, and bandpass filters. The choice depends on the desired spectral performance, environmental requirements, and application-specific needs.

Andover Corporation can coat a wide variety of fiber types, including single-mode, multi-mode, polarization-maintaining, and specialty fibers. Coating compatibility depends on the fiber material, geometry, and cladding exposure.

Fiber tips present a unique challenge due to their small surface area, curvature, and fragility. Proper alignment, fixturing, and surface preparation are critical for ensuring uniform coating performance and strong adhesion.

Our coatings support wavelengths ranging from the UV (193nm) through the far-infrared (up to 14µm), allowing customization for both visible and IR fiber optic systems.

Andover offers vertically integrated production with in-house polishing, coating, and metrology capabilities. Our engineering team works closely with customers to design and apply coatings that meet strict performance, reliability, and environmental standards.