Digital coherent transceivers have revolutionized optical fiber communications due to their
superior performance offered compared to intensity modulation and direct detection based …

A novel low-complexity coherent receiver solution is presented to improve spectral efficiency
in wavelength-division multiplexing (WDM) systems. It is based on the receiver-side partial …

Two novel linewidth-tolerant, low-complexity feedforward carrier phase estimation
algorithms are described for dual-polarization 16-ary quadrature-amplitude-modulation with …

A low-complexity feed-forward carrier phase estimation (CPE) technique is presented for
dual-polarization (DP)-16-QAM transmission systems. By combining QPSK partitioning …

Advanced DSP Techniques Enabling High Spectral Efficiency and Flexible Transmissions:
Toward elastic optical networks Page 1 IEEE SIGNAL PROCESSING MAGAZINE [82] MARCh …

Three novel linewidth-tolerant, low-complexity, two-stage feed-forward carrier phase
estimation algorithms are introduced for dual-polarization 16-ary quadrature amplitude …

Nowadays fiber lasers are the first choice for diverse scientific and industrial applications,
thanks to their excellent beam quality, high efficiency, fiexible and compact structure, and …

In long haul optical fiber communication networks, whichcan span thousands of kilometers,
bandwidth is at a premium due to the relatively low availability of optical fibers when …

Multi-format and linewidth-tolerant carrier phase estimation (CPE) is a vital part of digital
signal processing (DSP) units for future elastic optical transmissions to relax the laser …

A novel low-complexity two-stage digital feedforward carrier phase estimation algorithm
based on the rotation of constellation points to remove phase modulation for a 64-ary …