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Brand Name : FSO
Model Number : FSOF01
Place of Origin : China
MOQ : 1pcs
Price : Negotiation
Payment Terms : T/T
Supply Ability : 10000/per month
Delivery Time : 5-8 work days
Packaging Details : Protective packaging
Material : Crystal quartz
Diameter Tolerance : ±0.01mm
ncThickness Tolerae : ±0.1mm
Clear aperture : >90
Surface Quality : 20/10
Coating : Coating specified by customers
Fused Silica Quartz Birefringent Optical Filter for Laser Applications
Absorption and particularly wavelength selective absorption is an important factor in the function of the filters. The two most commonly used absorbers are thin metallic films which are particularly insensitive to wavelength for absorption and colored glasses which absorb wavelengths varied by as much as several orders of magnitudes in only tens of nanometers. Interference filters are multilayer dielectric thin film devices. Metallic films, colored glasses and thin dielectric films are used in Fused Silica Optics filters.
Birefringent filter is made by crystal quartz. It's used in the laser cavity for wavelength selection. We can provide different thickness birefringent filter for our customer's laser applications.
Specifications
Substrate material | Crystal quartz |
Diameter | 25.0 +0~-.025 mm |
Thickness | 3 ± 0.5 mm |
Min. clear aperture | >85% of diameter |
Transmission | >90% average within specified range |
Attenuation | >99% average within specified range |
Angle of incidence | 0° ± 5° |
Coating Technology | Electron beam evaporation, dielectric multilayers |
Surface quality | 40/20 per MIL-O-13830B |
Wedge | <3 minutes |
Wavefront distortion | ≤1λ @ 633nm per 25mm |
Humidity resistance | Per MIL-C-675A |
Abrasion resistance | Per MIL-C-675A |
Optimum temperature | 23°C |
Temperature limits | -50°C to 100°C |
Certification | Spectrophotometer print of lot sample |
Cleaning | Non-abrasive method, isopropyl alcohol on lens tissue recommended |
Laser Induced Damage Threshold(LIDT) | >3J/cm2 (1.06μm, 1ns) |
Surface quality | 20/10 per MIL-O-13830B |
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Fused Silica Quartz Birefringent Optical Filter for Laser Applications Images |