This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
from pyofss import Domain, System, Gaussian, Fibre
from pyofss import temporal_power, spectral_power, double_plot, labels
system = System(Domain(bit_width=200.0, samples_per_bit=2048))
system.add(Gaussian(peak_power=1.0, width=1.0))
system.add(Fibre(length=5.0, beta=[0.0, 0.0, 0.0, 1.0],
gamma=1.0, total_steps=100))
system.run()
P_t = temporal_power(system.fields['fibre'])
P_nu_normalised = spectral_power(system.fields['fibre'], True)
double_plot(system.domain.t, P_t, system.domain.nu, P_nu_normalised,
labels['t'], labels['P_t'], labels['nu'], labels['P_nu'],
x_range=(95.0, 120.0), X_range=(192.6, 193.7), filename="4-15")
from pyofss import temporal_power, spectral_power, double_plot, labels
domain = Domain(bit_width=4.0, samples_per_bit=4096)
s = 0.01
width = 1.0 / (s * domain.centre_omega)
gamma = 100.0 / (width ** 2)
P_ts = []
P_nus = []
length = [20.0 / gamma, 40.0 / gamma]
for l in length:
system = System(domain)
system.add(Gaussian(peak_power=1.0, width=width))
system.add(Fibre(length=l, gamma=gamma, total_steps=200,
self_steepening=True, beta=[0.0, 0.0, 1.0]))
system.run()
field = system.fields['fibre']
P_ts.append(temporal_power(field))
P_nus.append(spectral_power(field, True))
double_plot(system.domain.t, P_ts[0], system.domain.nu, P_nus[0],
labels["t"], labels["P_t"], labels["nu"], labels["P_nu"],
x_range=(-0.5, 0.5), X_range=(146.1, 240.1), filename="4-21a")
double_plot(system.domain.t, P_ts[1], system.domain.nu, P_nus[1],
labels["t"], labels["P_t"], labels["nu"], labels["P_nu"],
x_range=(-1.0, 1.0), X_range=(146.1, 240.1), filename="4-21b")
phase = self.initial_phase
phase -= 2.0 * pi * self.offset_nu * domain.t
sechh = 1./np.cosh(t_normalised)
sechh = np.where(sechh != 0, np.power(sechh, 1+1j*self.C), 0.)
magnitude = sqrt(self.peak_power)*sechh
if domain.channels > 1:
self.field[self.channel] += magnitude * exp(1j * phase)
else:
self.field += magnitude * exp(1j * phase)
return self.field
if __name__ == "__main__":
""" Plot a default Diss_soliton in temporal and spectral domain """
from pyofss import Domain, System, Diss_soliton
from pyofss import temporal_power, spectral_power, inst_freq
from pyofss import double_plot, labels
sys = System(Domain(bit_width=500.0))
sys.add(Diss_soliton())
sys.run()
double_plot(sys.domain.t, temporal_power(sys.field),
sys.domain.nu, spectral_power(sys.field, True),
labels["t"], labels["P_t"], labels["nu"], labels["P_nu"],
inst_freq = inst_freq(sys.field, sys.domain.dt), y2_label=labels["inst_nu"])
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
from pyofss import Domain, System, Gaussian, Fibre
from pyofss import temporal_power, spectral_power, double_plot, labels
system = System(Domain(bit_width=200.0, samples_per_bit=2048))
system.add(Gaussian(peak_power=1.0, width=1.0))
system.add(
Fibre(length=5.0, beta=[0.0, 0.0, 0.0, 1.0], gamma=1.0, total_steps=100))
system.run()
print system.domain
P_t = temporal_power(system.fields['fibre'])
P_nu_normalised = spectral_power(system.fields['fibre'], True)
P_lambda_normalised = P_nu_normalised
t = system.domain.t
nu = system.domain.nu
Lambda = system.domain.Lambda
double_plot(nu,
P_nu_normalised,
Lambda,
P_lambda_normalised,
labels['nu'],
labels['P_nu'],
labels['Lambda'],
labels['P_lambda'],
x_range=(192.6, 193.7),
Output information on Gaussian.
"""
output_string = [
'position = {0:f}', 'width = {1:f} ps', 'fwhm = {2:f} ps',
'peak_power = {3:f} W', 'offset_nu = {4:f} THz', 'm = {5:d}',
'C = {6:f}', 'initial_phase = {7:f} rad', 'channel = {8:d}'
]
return "\n".join(output_string).format(self.position, self.width,
self.calculate_fwhm(),
self.peak_power, self.offset_nu,
self.m, self.C,
self.initial_phase,
self.channel)
if __name__ == "__main__":
""" Plot a default Gaussian in temporal and spectral domain """
from pyofss import Domain, System, Gaussian
from pyofss import temporal_power, spectral_power
from pyofss import double_plot, labels
sys = System(Domain(bit_width=500.0))
sys.add(Gaussian())
sys.run()
double_plot(sys.domain.t, temporal_power(sys.field), sys.domain.nu,
spectral_power(sys.field, True), labels["t"], labels["P_t"],
labels["nu"], labels["P_nu"])
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import numpy as np
from pyofss import Domain, System, Gaussian, Fibre
from pyofss import spectral_power, quad_plot, labels
A_fs = []
Cs = [0.0, 10.0, -10.0, -20.0]
for C in Cs:
system = System(Domain(bit_width=100.0, samples_per_bit=2048))
system.add(Gaussian(width=1.0, peak_power=1.0, C=C))
system.add(Fibre('fibre', length=1.0, gamma=4.5 * np.pi))
system.run()
A_fs.append(system.fields['fibre'])
P_nus = [spectral_power(A_f, True) for A_f in A_fs]
quad_plot(system.domain.nu,
P_nus,
Cs,
labels["nu"],
labels["P_nu"], ["$C = {0:.0f}$"], (189.1, 197.1),
filename="4-5")
system = System(Domain(bit_width=200.0, samples_per_bit=4096, channels=2))
system.add(Gaussian(width=1.0, peak_power=1.0, channel=0))
system.add(Gaussian(width=1.0, peak_power=0.5, channel=1))
system.add(
Fibre('fibre',
length=40.0,
gamma=[1.0, 1.2],
beta=[[0.0, 0.0, 0.0, 0.0], [0.0, 0.125, 0.0, 0.0]],
sim_type='wdm',
total_steps=400,
method='RK4IP'))
system.run()
A_fs = system.fields['fibre']
P_nu0 = spectral_power(A_fs[0], True)
P_nu1 = spectral_power(A_fs[1], True)
double_plot(system.domain.nu,
P_nu0,
system.domain.nu,
P_nu1,
labels["nu"],
labels["P_nu"],
labels["nu"],
labels["P_nu"],
x_range=(181.1, 204.1),
X_range=(181.1, 204.1),
filename="7-2")
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import numpy as np
from pyofss import Domain, System, Gaussian, Fibre
from pyofss import spectral_power, quad_plot, labels
A_fs = []
Cs = [0.0, 10.0, -10.0, -20.0]
for C in Cs:
system = System(Domain(bit_width=100.0, samples_per_bit=2048))
system.add(Gaussian(width=1.0, peak_power=1.0, C=C))
system.add(Fibre('fibre', length=1.0, gamma=4.5 * np.pi))
system.run()
A_fs.append(system.fields['fibre'])
P_nus = [spectral_power(A_f, True) for A_f in A_fs]
quad_plot(system.domain.nu, P_nus, Cs, labels["nu"], labels["P_nu"],
["$C = {0:.0f}$"], (189.1, 197.1), filename="4-5")
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
from pyofss import Domain, System, Gaussian, Fibre
from pyofss import spectral_power, double_plot, labels
nu_0 = 193.1
nu_1 = 1.2 * nu_0
offset_nu = 0.2 * 193.1
system = System(Domain(bit_width=30.0, samples_per_bit=8192, channels=2))
system.add(Gaussian(width=1.0, peak_power=100.0, channel=0))
system.add(Gaussian(width=1.0, peak_power=1.0, channel=1, offset_nu=offset_nu))
system.add(Fibre('fibre', length=0.4, gamma=[1.0, 1.2],
beta=[[0.0, 0.0, 0.0, 0.0], [0.0, 10.0, 0.0, 0.0]],
sim_type='wdm', method='ARK4IP'))
system.run()
A_fs = system.fields['fibre']
P_nu0 = spectral_power(A_fs[0], True)
P_nu1 = spectral_power(A_fs[1], True)
double_plot(system.domain.nu, P_nu0, system.domain.nu, P_nu1,
labels["nu"], labels["P_nu"], labels["nu"], labels["P_nu"],
x_range=(nu_0 - 8.0, nu_0 + 8.0), X_range=(nu_1 - 8.0, nu_1 + 8.0),
filename="7-7")
def __str__(self):
"""
:return: Information string
:rtype: string
Output information on Gaussian.
"""
output_string = [
'position = {0:f}', 'width = {1:f} ps', 'fwhm = {2:f} ps',
'peak_power = {3:f} W', 'offset_nu = {4:f} THz', 'm = {5:d}',
'C = {6:f}', 'initial_phase = {7:f} rad', 'channel = {8:d}']
return "\n".join(output_string).format(
self.position, self.width, self.calculate_fwhm(), self.peak_power,
self.offset_nu, self.m, self.C, self.initial_phase, self.channel)
if __name__ == "__main__":
""" Plot a default Gaussian in temporal and spectral domain """
from pyofss import Domain, System, Gaussian
from pyofss import temporal_power, spectral_power
from pyofss import double_plot, labels
sys = System(Domain(bit_width=500.0))
sys.add(Gaussian())
sys.run()
double_plot(sys.domain.t, temporal_power(sys.field),
sys.domain.nu, spectral_power(sys.field, True),
labels["t"], labels["P_t"], labels["nu"], labels["P_nu"])
self.width,
self.calculate_fwhm(),
self.peak_power,
self.offset_nu,
self.C,
self.initial_phase,
self.channel,
)
if __name__ == "__main__":
""" Plot a default Sech in temporal and spectral domain """
from pyofss import Domain, System, Sech
from pyofss import temporal_power, spectral_power
from pyofss import double_plot, labels
sys = System(Domain(bit_width=500.0))
sys.add(Sech())
sys.run()
double_plot(
sys.domain.t,
temporal_power(sys.field),
sys.domain.nu,
spectral_power(sys.field, True),
labels["t"],
labels["P_t"],
labels["nu"],
labels["P_nu"],
)
