cavcalc.functions.resonance.finesse#
- cavcalc.functions.resonance.finesse(R1, R2)#
Finesse of a cavity where the first mirror has (power) reflectivity \(R_1\) and the second mirror has reflectivity \(R_2\).
\[\mathcal{F}(R_1, R_2) = \frac{\pi}{ 2 \arcsin{ \left( \frac{1 - \sqrt{R_1 R_2}}{2 (R_1 R_2)^{1/4}} \right) } }\]