SERVICE
Custom Optical Coating Services
Custom AR, HR, PR, and interference-filter coatings for laser optics and crystals, tailored to specified wavelengths and optical requirements. Contract coating of suitable customer-supplied substrates is also available.
- Germany-based supplier and manufacturing partner, with manufacturing resources in China
- Coating to agreed specifications
- Optical inspection and measurement against specified requirements
- From single components and prototypes to repeat supply
Service overview
Coated Components Supplied by Us
Customers can select substrates or optical components from our product range. We supply these components with coatings applied to agreed specifications.
Contract Coating of Customer-Supplied Substrates
We also coat suitable uncoated optical substrates and finished components supplied by customers, according to their existing coating specifications.
Coating Inspection & Verification
Spectrophotometric reflectance and transmittance measurements at selected wavelengths from 260 nm to 14 µm. Angle- and polarization-dependent measurements where applicable. For interference filters, verification may include center wavelength, FWHM, peak transmittance and out-of-band blocking.
Component & Quantity Options
Coating of flat and selected curved or nonstandard optical surfaces. Individual components, prototypes, and small batches on request.
Available coating types
Customer-specified coatings can be evaluated for selected wavelengths from 355 nm to 2.94 µm and IR ranges of 3–5 µm and 8–12 µm, including 10.6 µm for CO₂ laser optics. Angles of incidence from 0° to 60° can be supported, depending on substrate material, geometry and optical performance requirements.
Metallic Mirror Coatings
Aluminum, silver and gold reflective coatings for selected optical mirror applications.
Anti-Reflection (AR) Coatings
Single-wavelength, dual-wavelength and broadband AR coatings.
High-Reflection (HR) Coatings
High-reflectance coatings for laser mirrors, resonator mirrors and other reflective optics.
Partial-Reflection (PR) Coatings
Coatings with specified reflectance for output couplers and other laser optics.
Beam-Splitter Coatings
Custom coatings with specified reflectance and transmittance for beam splitters and wavelength-selective optical applications.
Infrared (IR) and Protective Coatings
IR anti-reflection and reflective coatings; selected protective and DLC coatings for germanium and silicon.
Optical Filter Coatings
AR and application-specific coatings for selected colored glass filters; bandpass interference coatings (including narrowband and dual-bandpass designs), as well as longpass and shortpass coatings.
High-Power Laser Coatings
AR and HR coatings for high-power laser applications, including nanosecond-pulsed laser systems, with LIDT requirements assessed on request.
Supported substrate materials
Coating feasibility depends on the substrate, surface condition and optical specifications.
Optical Glass and Quartz
- BK7
- Fused silica
- Single-crystal quartz
Laser Crystals and Laser Glass
- Nd:YAG
- Yb:YAG
- Er:YAG
- Nd:YLF
- Nd:YVO₄
- Cr⁴⁺:YAG
- Ruby
- Alexandrite
- Nd-doped laser glass
Nonlinear and Other Optical Crystals
- KTP
- BBO
- LBO
- KDP
- DKDP
- LiNbO₃
- LiIO₃
- Calcite (CaCO₃)
Fluoride Crystals (UV to IR)
- CaF₂
- MgF₂
- BaF₂
- LiF
Infrared Materials
- Germanium (Ge)
- Silicon (Si)
- Zinc selenide (ZnSe)
Representative examples
- BK7 Dual-Wavelength HR Laser Mirror, Ø25 × 3 mm, flat/flat; HR at 1064 nm and 532 nm, AOI 45°, R > 99.97% for both polarizations; specified damage threshold > 5 J/cm² for 5 ns pulses
- KTP Crystal with HR/HT and AR Coatings, 5 × 5 × 2 mm, SHG at 1064 nm; Side 1: HR at 1064 nm, R > 99.8%; HT at 532 nm, T > 97%; Side 2: AR at 1064 nm and 532 nm, R < 0.25%
- Ho:Cr:Tm:YAG Laser Crystal, Ø6 × 3 mm, flat/flat; Side 1: AR at 2.1 µm, R < 0.25%; Side 2: HR at 2.1 µm, R > 99.5%; R < 10% at 785 nm
- Yb:YAG Thin-Disk Crystal, Ø10.0 ± 0.3 mm, thickness 0.25 mm (+0.10 / −0.05 mm), flat/flat; Side 1: HT at 940 nm; Side 2: HR at 1030 nm
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- Silicon CO₂ Laser Mirror, Ø12.7 × 3.0 mm, R > 99.64% at 10.6 µm, flatness λ/40 at 10.6 µm, scratch-dig 20/10, AOI 28–30°
- JGS1 Fused Silica Optical Window, Ø125 × 8 mm, AR at 915, 940, 980 and 1030 nm on both sides
- Narrowband Interference Filter, center wavelength: 910 ± 45 nm; FWHM: 45 ± 7 nm; peak transmittance: T > 80%; out-of-band blocking: OD ≥ 4 over the UV–1200 nm range, excluding the passband
- Fused Silica Tubular Window, outer diameter 161 mm, inner diameter 155 mm, length 56 mm, inner and outer surfaces optically polished, AR coating at 1550 nm on the outer surface
- Alexandrite Laser Rod Recoating, Ø3/8″ × 120 mm; S1: plano, PR coating, R = 81.5%; S2: convex, ROC = 1 m, HR coating at 755 nm
Related products
Interference Filters
Thin-film narrowband bandpass, IPL cut-on, longpass, and shortpass filters with specified transmission, blocking, and optical density.
Optical Mirrors
Flat, wedged, curved, and aspherical geometries with HR, PR, output-coupler, dichroic, and multi-wavelength coatings.
Optical Lenses
Spherical, cylindrical, aspherical, wedged, and rectangular lens geometries with specified surface quality, centration, and coatings.
Optical Windows
Flat, wedged, tubular, and Brewster window configurations, including chip-free, unchamfered edge options.
RFQ PREPARATION
What to send for a quote
Please include the following details in your RFQ:
- Component type and substrate material
- Dimensions, drawings, and coating surfaces
- CWL, FWHM and blocking requirements
- AOI, polarization and LIDT requirements
- Coating specifications
- Required quantity