def setWavelength(self, nm: float): # in nm, accuracy: 0.001 nm
freq = nmToDGHz(nm)
THz = freq // 10000
dGHz = freq % 10000
ITLA.ITLA(self, ITLA.REG_Fcf1, THz, ITLA.WRITE)
ITLA.ITLA(self, ITLA.REG_Fcf2, dGHz, ITLA.WRITE)
return
def fineTuning(self, pm: int): # in pm, accuracy : 0.01 pm
C = 299792458
THz = ITLA.ITLA(self, ITLA.REG_Lf1, 0, ITLA.READ)
dGHz = ITLA.ITLA(self, ITLA.REG_Lf2, 0, ITLA.READ)
l1 = C / (THz + (dGHz * 10**(-4)))
df = -1 * C * pm / (l1 * (l1 + pm))
dfe = df * (10**(6))
return ITLA.ITLA(self, ITLA.REG_Ftf, np.uint16(dfe), ITLA.WRITE)
def __init__(self, COMPort):
super().__init__(port=COMPort,
baudrate=9600,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE,
bytesize=serial.EIGHTBITS,
timeout=0.4)
ITLA.ITLAConnect(COMPort)
self.maximum_tuning = 199 # in pm
def setMode(self, ModeKey):
ModeKeys = {'Dither': 0, 'Nodither': 1, 'Whisper': 2}
Command = ModeKeys[ModeKey]
return ITLA.ITLA(self, ITLA.REG_Mode, Command, ITLA.WRITE)
def setPower(self, Power): # in 0.01 dB
return ITLA.ITLA(self, ITLA.REG_Power, Power, ITLA.WRITE)
def setOff(self):
return ITLA.ITLA(self, ITLA.REG_Resena, 0, ITLA.WRITE)
def setOn(self):
return ITLA.ITLA(self, ITLA.REG_Resena, 8, ITLA.WRITE)