| NOTCH-4 | NOTCH-6 | NARROW NOTCH-4 | NARROW NOTCH-6 | Laser attenuation: Optical density (averaged over entire clear aperture) | > 4.0 | > 6.0 | > 4.0 | > 6.0 | Spectral bandwidth: Wavenumbers between OD 0.3 or 50% transmission points, cm -1 | < 500 | < 350 | Spectral edgewidth: Wavenumbers between OD 0.3 and 4.0 points, cm-1 | < 250 | < 120 | Available wavelength range, nm | 400-1200 | 450-1200 | 450-1200 | Standard wavelengths, nm | 441.6, 457.9, 476.7, 488.0, 514.5, 532.0, 568.2, 632.8, 647.1, 752.5, 785.0, 1064.0 | 488.0, 514.5, 532.0, 568.2, 632.8, 647.1, 752.5, 785.0, 1064.0 | Laser damage threshold: for CW-lasers, W/cm2 for pulse-laser ( t =10 ns), J/cm2 | 10 0.5 | Filter clear aperture: Standard aperture,mm Maximal aperture, mm | 25.4 70 | Environmental stability: Guaranteed durability, years Temperature working range, °C Atmosphere humidity stability at 35 °C, % Allowed Thermal Shock, °C | 1 from -50 to +50 98 ± 60 | Materials of substrates: | Optical glass or fused silica |
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