Apparatuses, systems, and methods are disclosed that provide for an agile coherent optical
modem that can generate agile RF Waveforms and data rates on a generic opto-electronic …

Primary Examiner—Peter Radkowski (74) Attorney, Agent, or Firm—Lumen Patent Firm (57)
ABSTRACT Universal linear components are provided. In general, a P input and Qoutput …

The present invention includes novel techniques, apparatus, and systems for optical WDM
communications. Various wavelocker apparatus and methods are disclosed that mea Sure …

In order to reduce mutual interferences between POLMUX and signals, the signals are
transmitted with differed to each other carrying signals, thereby making it possible to obtain …

The system utilizes a digital signal processor to recover an incoming optical signal. The
system employs a local oscilla tor, which does not need to be phase locked to the signal …

A method comprising splitting a received optical signal into split optical signals, the split
optical signals being at least initially orthogonally polarized, coherently detecting at least …

This application relates to an apparatus and a method for equalizing chromatic dispersion
and a digital coherent optical receiver. The apparatus for equalizing chromatic dispersion …

An embodiment of the invention is a technique to equalize received samples. A coefficient
generator generates filter coefficients using a rotated error vector. A filter stage generates …

Consistent with the present disclosure, data, in digital form, is received by a transmit node of
an optical communication system, is processed and then output to drive a modulator. The …

0002 Capacity of known optical communications sys tems is limited by factorS Such as the
number of wavelengths that can be transmitted along an optical path, the ability of the …