mirror of
https://github.com/edoverg/MPID.git
synced 2026-10-14 23:26:38 +00:00
86 lines
2.8 KiB
Python
86 lines
2.8 KiB
Python
import mpid as pid
|
|
import numpy as np
|
|
import os
|
|
if not os.path.exists("results"):
|
|
os.makedirs("results")
|
|
|
|
#Space grid definition
|
|
N = 1025
|
|
unit_cell_pitch = 700e-9
|
|
|
|
n0 = 1.45
|
|
n1 = 1.0
|
|
n2 = 1.45
|
|
mat_refr_index = np.array([n0, n1, n2])
|
|
|
|
d0 = 476e-6 #propagation distance: source - MS1 [m]
|
|
d1 = 510e-6 #propagation distance: MS1 - MS2 [m]
|
|
d2 = d0 #propagation distance: MS2 - target [m]
|
|
d = np.array([d0, d1, d2])
|
|
|
|
ms_max_available_diameter = 122e-6 #[um]
|
|
output_fiber_core_diameter = 19e-6 #[um]
|
|
opt_max_eval = 140
|
|
|
|
space_grid = pid.SpaceGrid(
|
|
side_pixels=N,
|
|
unit_cell_pitch = unit_cell_pitch,
|
|
prop_distances=d,
|
|
materials_refr_index=mat_refr_index,
|
|
)
|
|
|
|
wavelength = 1.55e-6
|
|
|
|
#define the sources
|
|
source1 = pid.Source(input_field='fiber_modes/LP11_field_distribution_lda_1550_N_1025.npy',
|
|
wavelength=wavelength,
|
|
space_grid=space_grid,
|
|
field_norm=True)
|
|
source2 = pid.Source(input_field='fiber_modes/LP21_field_distribution_lda_1550_N_1025.npy',
|
|
wavelength=wavelength,
|
|
space_grid=space_grid,
|
|
field_norm=True)
|
|
|
|
|
|
target = pid.Target(input_field='fiber_modes/LP01_field_distribution_lda_1550_N_1025.npy',
|
|
center=(20e-6,0),
|
|
associated_source=source1,
|
|
wavelength=wavelength,
|
|
space_grid=space_grid,
|
|
field_norm=True)
|
|
target2 = pid.Target(input_field='fiber_modes/LP01_field_distribution_lda_1550_N_1025.npy',
|
|
center=(-20e-6,0),
|
|
associated_source=source2,
|
|
wavelength=wavelength,
|
|
space_grid=space_grid,
|
|
field_norm=True)
|
|
|
|
#make a plot of sources and targets
|
|
|
|
target.plot2D(plot_zoom_x=100, plot_zoom_y=100, choose_quantity="amplitude", save_name="results/target_plot")
|
|
target2.plot2D(plot_zoom_x=100, plot_zoom_y=100, choose_quantity="amplitude", save_name="results/target2_plot")
|
|
source1.plot2D(plot_zoom_x=100, plot_zoom_y=100, choose_quantity="amplitude", save_name="results/source1_plot")
|
|
source2.plot2D(plot_zoom_x=100, plot_zoom_y=100, choose_quantity="amplitude", save_name="results/source2_plot")
|
|
|
|
sim = pid.Simulation(
|
|
sources=[source1, source2],
|
|
targets=[target, target2],
|
|
central_wavelength=wavelength,
|
|
space_grid=space_grid,
|
|
n_cpu=1
|
|
)
|
|
|
|
opt_param_min = 0
|
|
opt_param_max = 1
|
|
|
|
sim.set_optimization(opt_param_min=opt_param_min,
|
|
opt_param_max=opt_param_max,
|
|
ms_max_avail_diameter=ms_max_available_diameter,
|
|
phase_mask_init_size=output_fiber_core_diameter,
|
|
opt_max_eval=opt_max_eval,)
|
|
|
|
sim.run()
|
|
|
|
best_opt_val, distances = sim.get_best_opt_and_distances()
|
|
print("Best optimization value:", best_opt_val)
|
|
print("Distances:", distances) |