Fiber Coupling Efficiency Calculator

Beam Waist Radius (w₀) Fiber Mode Field Radius (w_f) Lateral Offset (r)

Input Parameters:
w₀ = Beam Waist Radius
w_f = Fiber Mode Field Radius
r = Lateral Offset

$$\eta = \left(\frac{2 w_0 w_f}{w_0^2 + w_f^2}\right)^2 \exp\left(-\frac{2 r^2}{w_0^2 + w_f^2}\right)$$

η = ?

Output Parameter:
η = Fiber Coupling Efficiency (%)