gplugins.modes.find_mode_dispersion

gplugins.modes.find_mode_dispersion#

gplugins.modes.find_mode_dispersion(wavelength: float = 1.55, wavelength_step: float = 0.01, core: str = 'Si', clad: str = 'SiO2', mode_number: int = 1, **kwargs) → Mode[source]#

Returns Mode with correct dispersion (ng).

group index comes from a finite difference approximation at 3 wavelengths

Parameters:

  • wavelength – center wavelength (um).

  • wavelength_step – in um.

  • core – core material name.

  • clad – clad material name.

  • mode_number – mode index to compute (1: fundamental mode).

Keyword Arguments:

  • core_thickness – wg height (um).

  • sx – supercell width (um).

  • sy – supercell height (um).

  • resolution – (pixels/um).

  • wavelength – wavelength.

  • num_bands – mode order.

  • plot – if True plots mode.

  • logscale – plots in logscale.

  • plotH – plot magnetic field.

  • cache – path to save the modes.

  • polarization – prefix when saving the modes.

  • parity – symmetries mp.ODD_Y mp.EVEN_X for TE, mp.EVEN_Y for TM.

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