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test_fsig.py
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Daniel Brown authoredadding in fsig command (not parsing yet). See example test_fsig.py in bin folder. Also made component variable an optional argument for xaxis and x2axis which will break previous scripts. Did this as when setting the parameter to tune, the Param object contains whatever component owns that parameter so no need to pass it twice. Also stops someone passing a parameter not for the component stated.
Daniel Brown authoredadding in fsig command (not parsing yet). See example test_fsig.py in bin folder. Also made component variable an optional argument for xaxis and x2axis which will break previous scripts. Did this as when setting the parameter to tune, the Param object contains whatever component owns that parameter so no need to pass it twice. Also stops someone passing a parameter not for the component stated.
test_fsig.py 1.02 KiB
from pykat import finesse
from pykat.detectors import *
from pykat.components import *
from pykat.commands import *
from pykat.structs import *
import numpy as np
import pylab as pl
code = """
l l1 2 0 n1
m m1 0.99 0.01 0 n1 n2
s cav1 1200 n2 n3
m m2 0.99 0.01 -0.1 n3 n4
attr m2 m 1 # mech sus1
ad up_refl 0 n1
ad low_refl 0 n1
qd refl_A 0 0 n1
qd refl_Q 0 90 n1
qd tran_A 0 0 n4
qd tran_Q 0 90 n4
put up_refl f $x1
put low_refl f $mx1
yaxis log re:im
"""
kat = finesse.kat(kat_code=code)
kat.signals.apply(kat.l1.power, 1, 0)
kat.signals.apply(kat.m1.phi, 1, 90)
kat.add(xaxis('log', [1, 1000], kat.signals.f, 100))
out = kat.run(printout=0, printerr=0)
# using real and imag part compute the complex value of the upper and lower sidebands
a_up = out.y[:,0] + out.y[:,1]*1j
a_lo = out.y[:,2] + out.y[:,3]*-1j
pl.figure(1)
pl.loglog(out.x, np.abs(a_up + a_lo), out.x, np.abs((a_up - a_lo) / (1j)))
pl.xlabel(out.xlabel)
pl.title("Reflection quadratures with no relative carrier phase")
pl.legend(["Amplitude","Phase"])
pl.show()