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Updating ase test to handle the variable gain setup

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Signed-off-by: EstherLerouzic <esther.lerouzic@orange.com>
This commit is contained in:
EstherLerouzic
2020-02-21 16:23:11 +01:00
parent d3ec39d506
commit 639b379a5b
1 changed files with 19 additions and 4 deletions
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23
tests/test_amplifier.py
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@@ -126,24 +126,39 @@ def test_compare_nf_models(gain, setup_edfa_variable_gain, si):
assert pytest.approx(nf_model, abs=0.5) == nf_poly
@pytest.mark.parametrize("gain", [13, 15, 17, 19, 21, 23, 25, 27])
def test_ase_noise(gain, si, setup_edfa_variable_gain, setup_trx, bw):
def test_ase_noise(gain, si, setup_trx, bw):
"""testing 3 different ways of calculating osnr:
1-pin-edfa.nf+58 vs
2-pout/pase afet propagate
3-Transceiver osnr_ase_01nm
=> unitary test for Edfa.noise_profile (Edfa.interpol_params, Edfa.propagate)"""
edfa = setup_edfa_variable_gain
equipment = load_equipment(eqpt_library)
network = load_network(test_network, equipment)
edfa = next(n for n in network.nodes() if n.uid == 'Edfa1')
span = next(n for n in network.nodes() if n.uid == 'Span1')
# update span1 and Edfa1 according to new gain before building network
# updating span 1 avoids to overload amp
span.length = gain*1e3 / 0.2
edfa.operational.gain_target = gain
build_network(network, equipment,0, 20)
edfa.gain_ripple = zeros(96)
edfa.interpol_nf_ripple = zeros(96)
#propagate in span1 to have si with the correct power level
si = span(si)
print(span)
frequencies = array([c.frequency for c in si.carriers])
pin = array([c.power.signal+c.power.nli+c.power.ase for c in si.carriers])
baud_rates = array([c.baud_rate for c in si.carriers])
edfa.operational.gain_target = gain
pref = Pref(0, 0, lin2db(len(frequencies)))
pref = Pref(0, -gain, lin2db(len(frequencies)))
edfa.interpol_params(frequencies, pin, baud_rates, pref)
nf = edfa.nf
print('nf', nf)
pin = lin2db(pin[0]*1e3)
osnr_expected = pin - nf[0] + 58
si = edfa(si)
print(edfa)
pout = array([c.power.signal for c in si.carriers])
pase = array([c.power.ase for c in si.carriers])
osnr = lin2db(pout[0] / pase[0]) - lin2db(12.5e9/bw)