Patent ID: 8145063
Filing Date: 2012-03-27
Classification: H04B

Abstract:
1. A method for readjusting a polarization drift in the transmission of a polarization-encoded optical signal from a transmitter via a light guide to a receiver, wherein, on the side of the transmitter, optical auxiliary signals having the same wavelength as the polarization-encoded optical signal as well as different polarizations, corresponding to a first base and a second base, are fed into the light guide while the transmission of the polarization-encoded optical signal is interrupted, and wherein, on the side of the receiver, the optical auxiliary signals are picked up from the light guide and checked for shifts of the different polarizations by a polariometer, whereupon, in the event of the detection of polarization shifts, the different polarizations shifted during the transmission are displaced in the sense of polarization set values via a polarization controller associated with the light guide.