These coatings are designed to increase the transmission over a broad spectrum |
Coatings are provided by Ion Beam Sputtering (IBS) or Electron beam evaporation with/without Ion assistance coating techniques |
Dual Anti-Reflection Coatings in the range 0.19-10.6 µm are available |
Dual AR coated windows designed to reduce the reflectivity of a component to near-zero for two certain wavelengths. Usually these windows are used in multi-frequency laser output systems (e.g. frequency doubling). This type of coating provides very high transmission at two different wavelength. Typical wavelengths and reflection curves of an AR coating suitable for the standard laser system output at 1064 nm and 532 nm are shown below. |
Standard Specifications
Substrate Dimension Tolerance | +0.0, -0.1 mm |
Substrate Wavefront Distortion | <λ/8 |
Substrate Surface Quality | 20-10 S-D (40-20 S-D for curved surfaces) |
Coating Adhesion and Durability | Per MIL-C-675A |
Residual Reflectivity | <0.5% |
Clear Aperture | >90% of diameter |
Laser Damage Threshold | >4-5 J/cm2 for 10 ns pulses @ 1064 nm |
Dual AR Coated Windows
Wavelength, nm | Substrate material | Ordering Code for AOI = 0° | Ordering Code for AOI = 45° | Ordering Code for AOI = 0° | Ordering Code for AOI = 45° |
Ø12.7x5 mm | Ø25.4x5 mm | ||||
266+532 | UVFS | 14DM-05-DAR1-0-2 | 14DM-05-DAR1-45-2 | 14DM-1-DAR1-0-2 | 14DM-1-DAR1-45-2 |
343+1030 | UVFS | 14DM-05-DAR2-0-2 | 14DM-05-DAR2-45-2 | 14DM-1-DAR2-0-2 | 14DM-1-DAR2-45-2 |
355+532 | UVFS | 14DM-05-DAR3-0-2 | 14DM-05-DAR3-45-2 | 14DM-1-DAR3-0-2 | 14DM-1-DAR3-45-2 |
355+1064 | UVFS | 14DM-05-DAR4-0-2 | 14DM-05-DAR4-45-2 | 14DM-1-DAR4-0-2 | 14DM-1-DAR4-45-2 |
400+800 | UVFS | 14DM-05-DAR6-0-1 | 14DM-05-DAR6-45-1 | 14DM-1-DAR6-0-1 | 14DM-1-DAR6-45-1 |
515+1030 | UVFS | 14DM-05-DAR8-0-1 | 14DM-05-DAR8-45-1 | 14DM-1-DAR8-0-1 | 14DM-1-DAR8-45-1 |
532+1064 | UVFS | 14DM-05-DAR9-0-1 | 14DM-05-DAR9-45-1 | 14DM-1-DAR9-0-1 | 14DM-1-DAR9-45-1 |
510-532 + 1020-1070 | UVFS | N/A | 14DM-05-DAR11-45-2 | N/A | 14DM-1-DAR11-45-2 |