New Full-response Qpsk Signal Format
نویسندگان
چکیده
Based on a novel class of orthogonal pulse pairs, new full-response quadrature-quadrature phase-shift keying (QPSK) signal format is proposed in the paper. The proposed full-response QPSK signals can provide higher spectral compactness than conventional fullresponse QPSK signal, minimum-shift keying signal and quadrature phase-shift keying signal.
منابع مشابه
Performance evaluation of coherent WDM PS-QPSK (HEXA) accounting for non-linear fiber propagation effects.
Coherent-detection (CoD) permits to fully exploit the four-dimensional (4D) signal space consisting of the in-phase and quadrature components of the two fiber polarizations. A well-known and successful format exploiting such 4D space is Polarization-multiplexed QPSK (PM-QPSK). Recently, new signal constellations specifically designed and optimized in 4D space have been proposed, among which pol...
متن کاملAll-optical format conversions from NRZ to BPSK and QPSK based on nonlinear responses in silicon microring resonators.
We propose and numerically verify a novel scheme of all-optical format conversion from non-return-to-zero (NRZ) to binary phase-shift- keying (BPSK) at 160 Gb/s using cascaded microring resonators (CMRR) on a single silicon chip. The conversion is based on large phase shift and flattened intensity-response characteristics in the CMRR. A continuous-wave light experiences different phase shifts c...
متن کاملThe error statistics analysis of the QPSK-modulated signal in the high-rate optical link
A model of an optical fibre communication line operating at 80 Gb/s with QPSK modulation format is studied numerically. The error statistics and patterning effects are analyzed and nonlinear transmission impairments of the optical signal are quantified.
متن کاملAnalysis and experimental demonstration of novel 8PolSK-QPSK modulation at 5 bits/symbol for passive mitigation of nonlinear impairments.
We propose a new modulation format providing 5 bits of information per recovered symbol while maintaining constant the total optical power. The proposed format applies a simple power constrain to the DP-8QAM format. This modulation format provides a passive way to mitigate nonlinear impairments due to Kerr effects occurring during propagation, and most specifically in the first 40 km. This repo...
متن کاملA Novel Sample Based Quadrature Phase Shift Keying Demodulator
This paper presents a new practical QPSK receiver that uses digitized samples of incoming QPSK analog signal to determine the phase of the QPSK symbol. The proposed technique is more robust to phase noise and consumes up to 89.6% less power for signal detection in demodulation operation. On the contrary, the conventional QPSK demodulation process where it uses coherent detection technique requi...
متن کامل