Maxim Integrated Products, Inc.
SYSTEMS AND METHODS FOR IDENTIFYING POLARIZATION/QUADRATURE CHANNELS IN DUAL-POLARIZATION COHERENT OPTICAL TRANSMISSION

Abstract:

Described are systems and methods for identifying the phase and polarization of independent modulation streams in quadrature channels of a coherent transmission system by using digital code. As a result, phase rotation and polarization of streams that during transmission may have become rotated and swapped around in the channel are correctly labeled and depermuted according to a known and predictable order.