Custom Optical Filter Services We provide custom optical filter design and manufacturing services for research laboratories, universities, OEM systems, and industrial customers. Our team supports prototype development through low- and medium-volume production with customized optical coating solutions across UV, visible, NIR, and IR wavelength ranges. We offer a wide range of custom optical filters and thin-film coating technologies designed for demanding optical performance requirements, including high transmission efficiency, wavelength selectivity, laser damage resistance, and environmental stability. Our Custom Optical Filter Capabilities Filter Types Bandpass Filters Long Pass Filters Short Pass Filters Notch Filters Dichroic Filters Neutral Density (ND) Filters Beam Splitters Edge Filters Laser Line Filters Fluorescence Filters IR Blocking / UV Blocking Filters Supported Wavelength Ranges UV: 200–400 nm Visible: 400–700 nm Near Infrared (NIR): 700–2500 nm Mid-IR coatings available upon request Optical Performance Transmission up to >98% Reflection up to >99.5% for HR coatings Bandwidth customization from narrowband to broadband Optical density (OD): OD3–OD6+ available Surface quality down to 10-5 scratch-dig Flatness up to λ/10 Low wavefront distortion coatings available Substrate Materials Fused Silica BK7 Sapphire Quartz Silicon Germanium ZnSe CaF₂ Custom optical substrates upon request Size & Geometry Diameters from 3 mm to >300 mm Square, rectangular, circular, or custom geometries Thickness customization available Custom mounting and edge finishing supported Thin Film Coating Technologies Our optical filters are fabricated using precision thin-film deposition technologies designed for high uniformity and durability. Available coating processes include: Electron Beam Evaporation Ion-Assisted Deposition (IAD) Magnetron Sputtering Multi-layer dielectric coatings Metallic and hybrid coatings These processes enable: Excellent environmental stability High laser damage threshold Improved adhesion and durability Low absorption losses Stable spectral performance Typical Applications Scientific & Research Spectroscopy systems LIBS systems Fluorescence microscopy Raman spectroscopy Photonics research Laser & Imaging DPSS lasers Fiber laser systems Beam shaping optics CCD/CMOS imaging Machine vision systems Industrial & OEM Optical sensing Biomedical devices Semiconductor inspection Analytical instrumentation Environmental monitoring Custom Design Support We support fully customized optical filter development based on your technical requirements. Our engineering team can assist with: Coating design optimization AOI (Angle of Incidence) tuning Polarization-sensitive designs Multi-band filter development Environmental and durability requirements Prototype evaluation and iteration Typical information required for quotation: Filter type Center wavelength (CWL) Bandwidth (FWHM) Transmission/reflection requirements Angle of incidence Substrate material Dimensions and quantity Quality & Inspection Each optical filter can be inspected and tested for: Spectral transmission/reflection Surface quality Dimensional tolerance Coating adhesion Visual cosmetic inspection Test reports and transmission curves may be available upon request. Request a Quote Please send your detailed specifications ([email protected]), including wavelength range, filter type, dimensions, optical requirements, and quantity. Our engineering team will review your request and provide a quotation and estimated lead time.
