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fixed loss factor

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This commit is contained in:
Benoît Sierro
2023-02-22 11:42:06 +01:00
parent 79dd39f39a
commit 89ea3cafc7
1 changed files with 2 additions and 1 deletions
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3
src/scgenerator/physics/fiber.py
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@@ -903,7 +903,8 @@ def capillary_loss(wl: np.ndarray, he_mode: tuple[int, int], core_radius: float)
loss in 1/m
"""
chi_silica = abs(mat.Sellmeier.load("silica").chi(wl))
nu_n = 0.5 * (chi_silica + 2) / np.sqrt(chi_silica)
# the real loss alpha is 2*Im(n_eff), which differs from the notation of the paper
nu_n = (chi_silica + 2) / np.sqrt(chi_silica)
return nu_n * (u_nm(*he_mode) * wl / pipi) ** 2 * core_radius**-3