Title :
Record 59-krad/s Polarization Tracking in 112-Gb/s 640-km PDM-RZ-DQPSK Transmission
Author :
Koch, Benjamin ; Noé, Reinhold ; Mirvoda, Vitali ; Griesser, Helmut ; Bayer, Steffen ; Wernz, Horst
Author_Institution :
Univ. of Paderborn, Paderborn, Germany
Abstract :
We present results obtained with a fast optical polarization controller. Tracking errors were <; 0.208 rad on the Poincaré sphere during 282 hours of endless polarization scrambling at up to 60 krad/s speed. Fifty-kilorad/second polarization changes were tracked at wavelengths between 1513 nm and 1600 nm. With this subsystem we optically demultiplexed the two polarizations of a 112-Gb/s PDM-RZ-DQPSK signal transmitted over 640 km of fiber at 59 krad/s. This is the fastest polarization control reported for this or higher bitrate and direct detection.
Keywords :
light polarisation; optical fibre communication; quadrature phase shift keying; PDM-RZ-DQPSK transmission; Poincare sphere; bit rate 112 Gbit/s; distance 640 km; fast optical polarization; polarization tracking; polarization-multiplexed quadrature phase shift keying; tracking errors; Adaptive optics; Bit error rate; Demultiplexing; Energy consumption; Field programmable gate arrays; Interference; Optical control; Optical fiber communication; Optical fiber polarization; Optical interferometry; Optical noise; Optical polarization; Optical receivers; Quadrature phase shift keying; Lithium niobate; optical fiber communication; optical fiber polarization; quadrature phase shift keying;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2060719
