Transmission Performance of 112 Gb/s POLMUX QPSK Signal in OOK/DPSK WDM System
| Autor: | Harmanpreet Kaur Sandhu, Rajinder Singh Kaler, Rajneesh Randhawa, Gurpreet Kaur |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Signal processing 02 engineering and technology Condensed Matter Physics Transmission performance 01 natural sciences Signal Atomic and Molecular Physics and Optics 010309 optics 020210 optoelectronics & photonics Wavelength-division multiplexing 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering Phase-shift keying |
| Zdroj: | Journal of Optical Communications. 41:171-176 |
| ISSN: | 2191-6322 0173-4911 |
| Popis: | In this article, the impact of cross-phase modulation (XPM) and cross-polarization modulation (XpolM) on transmission of 112 Gb/s polarization multiplexed quadrature phase shift keying (POLMUX QPSK) signal in a wavelength division multiplexing (WDM) system has been investigated. This WDM system comprises of on-off keying (OOK) or differential phase shift keying (DPSK) channels. It is observed that the effects of XPM and XpolM are greatly reduced in a hybrid system of co-propagating OOK and DPSK channels. This is due to the dominance of phase modulation of DPSK signals rather than the intensity modulated OOK signals. The error vector magnitude (EVM) of the received optical signal is evaluated for the increase in number of neighbouring OOK and DPSK channels respectively within a bandwidth of 350 GHz. Also, the effect of increase in bit rate for two neighbouring OOK and DPSK channels has been observed individually on the 112 Gb/s POLMUX QPSK signal. It is concluded that DPSK signals display an improvement of −9.44 dB in EVM over OOK signals when there are eight neighbouring channels in the transmission system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|