Er:YAG Laser -2940nm- Output coupler CL-OC20005
Our output coupler is a semitransparent dielectric mirror for laser resonators. It partially reflects laser light back into the resonator for gain amplification and partially transmits stable laser output. A constant reflectance/transmittance ratio (R/T) is the main property of this partially reflecting resonator mirror. The laser pump-power threshold, maximum output power, and output efficiency depend strongly on its R/T value. Our output couplers provide reflectance of 70%~99.5% and are made from sapphire/neodymium-doped yttrium aluminum garnet (YAG), transmitting high-power laser beams while avoiding optical-energy absorption and thermal deformation. Stable front-surface reflectance provides effective laser coupling and modulation.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dimensions | ∅ = 12.7 mm (-0.1 mm) t = 3 mm (±0.1 mm) |
| Outline | Front Side (S2) plane Rear Side (S1) plane |
| Coating design | Front Side (S2) PR(0°,2940nm)=83(±1%) Rear Side (S1) AR(0°,2940nm)<0.25% |
| Parallelism | 10〞 |
| Perpendicularity | 5ˊ |
| Surface Quality | 20-10 |
| Surface Flatness [@632 nm] | λ / 8 @ 632 nm |
| Clear Aperture Dimension | > 85% in the central region |
| Chamfer [@45°] | 0.2mm-0.5mm @ 45° |
| Dimensions Accuracy | ± 0.05mm |
| Thickness / Diameter Tolerance | (0,-0.1)mm |
| Damage Threshold [@1064 nm 10 ns 10 Hz] | >10 J/cm²@ 1064 nm 10 ns 10 Hz |
Datasheet
Supplier Information
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