Φ = 2·(2π/λ)·(L/cosθ)·[1+cos(γ−θ)] − 2·(2π·L/d)·tanθ
GD = dΦ/dω = 2·(L/(c·cosθ))·[1+cos(γ−θ)]
GDD = d²Φ/dω² = −2·(λ³·L/(2π·c²·d²))·1/cos³θ
TOD = d³Φ/dω³ = 2·(3·λ⁴·L/(4π²·c³·d²))·(1+(λ/d)sinγ−sin²γ)/cos⁵θ