Under ideal circumstances Laser 1470 would arrive at power meter 1 with a power of -10dBm. Laser 1490 would arrive at power meter 2 with a power of -10dBm.
The picture “Result” shows the power measured at power meter 2. You will see that the lowest power on this graph is -10dBm. This is the expected power from the 1490 laser. In addition to this there is a gaussian shaped bulge. This is an unwanted leakage of power from the 1470nm laser as its wavelength is swept over a range. I would expect this result and have confirmed it elsewhere.
The unexpected result is the spike of optical power to the right of the gaussian shaped bulge.
The reason I am building this model is that CWDM lasers are expected to drift in wavelength domain. I know the drift in this case is excessive but I am trying to validate the model.
Thanks for your time.