Optical Mirrors - Cavity Mirrors

Cavity Mirrors

Rear mirrors, known for very high reflectivity (>99.7%), is the crucial optical component in the laser resonator. The output couplers are partially reflective mirrors to extract a portion of the laser beam from the laser resonator. They often require a slight wedge to prevent interference from multiple reflections inside the component. Rear mirrors and output couplers are collectively known as laser cavity mirrors.


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Product TypePart NumberWavelength (nm)MaterialDia (mm)ET (mm)RadiusReflectivity (%)
Output CouplerOCF-19-9.5-45%R1064Fused Silica19.09.5Plano45 ± 2
Output CouplerOCF-0.75-9.5-80%R1064Fused Silica19.19.5Plano80 ± 3
Output CouplerOCF-20-10-35%R1064Fused Silica20.010.0Plano35 ± 3
Output CouplerOCF-20-10-50%R1064Fused Silica20.010.0Plano50 ± 3
Rear MirrorRFS-19-9.5-Wed31064Fused Silica19.09.5Plano/Wedge 3’± 2′99.5
Rear MirrorRFS-20-10-6MCC1064Fused Silica20.09.56M Concave>99.7
Rear MirrorRFS-0.75-9.5-01064Fused Silica19.19.5Plano>99.7

Cavity Mirrors 1Diameter Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Centration: < 3 arc minutes
Clear Aperture: >90%
Surface Quality: 40-20 S-D
Angle of Incidence:


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Cavity Mirrors 3

Laser Resonant Cavity Optics

Highly and partially reflective mirrors are the key optical components in the laser resonant cavity. The partially reflective mirror is the output coupler of the...

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