Beam Splitter Calculator

Calculate R/T power splitting, Fresnel reflectance, and plate beam displacement.

R/T Power Splitter
Power Distribution
Reflected Power
50.000mW
Transmitted Power
50.000mW
Absorbed Power
0mW
Total Throughput
100.0%
Abridged Optics — Beam Splitter Calculator v1.0Fresnel calculations assume a single uncoated interface. Real beam splitters use multi-layer coatings that modify R/T beyond Fresnel predictions. See the Beam Splitters Comprehensive Guide for coating design details.

All information, equations, and calculations have been compiled and verified to the best of our ability. For mission-critical applications, we recommend independent verification of all values. If you find an error, please let us know.