The present disclosure provides a polarization multiplexed transceiver, including: a
transmitter; a receiver; circuitry within the transmitter configured to insert pilot tones as a …

An optical receiver having a plurality of optical IQ modulators arranged in a butterfly
configuration and configured to operate as an optical polarization de-multiplexer. The optical …

The present disclosure relates to optical communication equipment and, more specifically
but not exclusively, to coherent detection of modulated optical signals. 2. Description of the …

A polarization multiplexed receiver includes a polarization separator and optical mixing,
detecting and analog-to-digital components. The polarization separator receives …

Systems and methods for cancelling interference from a received signal in order to properly
detect a signal of interest are disclosed. A combined signal of interest plus interference …

An adaptive equalizer with coefficients determined by averaging an estimated filter
coefficient over a number, N, of past and future symbols. Estimated filter coefficients may be …

An interference cancellation system (ICS) may be used with a communication system to
prevent or minimize interference from one or more sources. The ICS may receive radio fre …

An interference cancellation system (ICS) may be used with a communication system to
prevent or minimize interference from one or more sources. The ICS may receive radio RF …

BACKGROUND 0002 1. Field 0003 Embodiments of the invention relate to the field of
processing Dense Wavelength division Multiplexed (DWDM) network traffic; and more …

Abstract A dual-polarization, 2-subcarriers code orthogonal, orthogonal frequency division
multiplexed signal carrying information bits is transmitted in an optical communication …