Spectrally-efficient optical communications systems employ polarization division
multiplexing (PDM) as a practical solution, in order to double the capacity of a fiber link …

BACKGROUND This application relates to optical polarization and use of optical
polarization in optical communications. Optical polarization is an important parameter of an …

In the digital coherent optical receiver, we can achieve polarization demultiplexing in the
digital domain, using a two-by-two matrix controlled by the constant-modulus algorithm …

Polarization is one of the fundamental properties of optical waves. To cope with the
exponential growth of the Internet traffic, optical communications has advanced by leaps and …

Initial tap setup of constant modulus algorithm for polarization de-multiplexing in optical
coherent receivers Page 1 Initial Tap Setup of Constant Modulus Algorithm for Polarization …

Polarization division multiplexed (PDM) quadrature phase-shift keying (QPSK) coherent
optical systems employ blind adaptive linear electronic equalizers for polarization-mode …

Polarization Demultiplexing Based on Independent Component Analysis in Optical
Coherent Receivers Page 1 Polarization Demultiplexing Based on Independent …

We propose a modified method of constant modulus algorithm (CMA) based on polarization
demultiplexing in Stokes space for polarization demultiplexing (SS-PDM) in optical coherent …

In polarization multiplexing based coherent optical transmission, two main kinds of
impairements have to be counter-acted: 1) the inter-symbol interference generated by the …

Polarization dependent loss (PDL) causes imbalanced optical signal to noise ratio (OSNR)
of the two polarizations, thus remains one of the major bottlenecks for next-generation …