Hardware-Efficient Coherent Digital Receiver Concept With Feedforward Carrier Recovery for -QAM Constellations
T Pfau, S Hoffmann, R Noé - Journal of Lightwave Technology, 2009 - ieeexplore.ieee.org
This paper presents a novel digital feedforward carrier recovery algorithm for arbitrary M-ary
quadrature amplitude modulation (M-QAM) constellations in an intradyne coherent optical …
quadrature amplitude modulation (M-QAM) constellations in an intradyne coherent optical …
Power-efficient modulation formats in coherent transmission systems
Coherent optical transmission systems have a four-dimensional (4–D) signal space (two
quadratures in two polarizations). These four dimensions can be used to create modulation …
quadratures in two polarizations). These four dimensions can be used to create modulation …
Fiber impairment compensation using coherent detection and digital signal processing
EM Ip, JM Kahn - Journal of Lightwave Technology, 2009 - ieeexplore.ieee.org
Next-generation optical fiber systems will employ coherent detection to improve power and
spectral efficiency, and to facilitate flexible impairment compensation using digital signal …
spectral efficiency, and to facilitate flexible impairment compensation using digital signal …
Equalizer design and complexity for digital coherent receivers
B Spinnler - IEEE Journal of Selected Topics in Quantum …, 2010 - ieeexplore.ieee.org
Digital signal processing has completely changed the way optical communication systems
work during recent years. In combination with coherent demodulation, it enables …
work during recent years. In combination with coherent demodulation, it enables …
Characterization of Hybrid InP-TriPleX Photonic Integrated Tunable Lasers Based on Silicon Nitride (Si 3N4/SiO2) Microring Resonators for Optical Coherent …
We demonstrate detailed characterization results of a hybrid InP-TriPleX photonic integrated
tunable laser based on silicon nitride microring resonators. A tuning range of 50 nm across …
tunable laser based on silicon nitride microring resonators. A tuning range of 50 nm across …
Bit-error rate performance of coherent optical M-ary PSK/QAM using decision-aided maximum likelihood phase estimation
The bit-error rate (BER) expressions of 16-phase-shift keying (PSK) and 16-quadrature
amplitude modulation (QAM) are analytically obtained in the presence of a phase error. By …
amplitude modulation (QAM) are analytically obtained in the presence of a phase error. By …
Real-time 2.5 GS/s coherent optical receiver for 53.3-Gb/s sub-banded OFDM
A real-time receiver for the coherent optical orthogonal frequency-division multiplexing (CO-
OFDM) detection is realized in a field-programmable gate array (FPGA). Each building block …
OFDM) detection is realized in a field-programmable gate array (FPGA). Each building block …
Real-time reception of multi-gigabit coherent optical OFDM signals
Coherent Optical OFDM (CO-OFDM) has been demonstrated for delivering superior
performance in spectral efficiency, receiver sensitivity, and polarization-dispersion …
performance in spectral efficiency, receiver sensitivity, and polarization-dispersion …
Optimal polarization demultiplexing for coherent optical communications systems
I Roudas, A Vgenis, CS Petrou… - Journal of Lightwave …, 2010 - opg.optica.org
Spectrally-efficient optical communications systems employ polarization division
multiplexing (PDM) as a practical solution, in order to double the capacity of a fiber link …
multiplexing (PDM) as a practical solution, in order to double the capacity of a fiber link …
All-optical waveform sampling in high-speed optical communication systems using advanced modulation formats
We review techniques to characterize optical data with very high fidelity using the principle
of optical sampling based on four-wave mixing in a highly nonlinear fiber. This approach …
of optical sampling based on four-wave mixing in a highly nonlinear fiber. This approach …