Hi friends, i have a setup (sagnac interferometer) and i want to measure the phase difference between the two waves with an oscilloscope. i get a sine wave on the oscilloscope and i dont know how to interprete this signal.. im using a tectronix. i will be gratefull for any help.. the signal is modulated at 50KHz.. Thx
oh boy. already thought about feeding both signals into 2 oscilloscope channels and measure the time difference by setting the two time cursors?