Effect of Nonlinear Phase Variation in Optical MillimetreWave Radio over Fibre Systems
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JECEI-3-1_003
تاریخ نمایه سازی: 4 خرداد 1395
Abstract:
In this paper, we propose an optical millimetre wave radio-over-fibre(mm-wave RoF) system that uses a dual drive Mach Zehnder modulator(DD-MZM), which is biased at the maximum transmission biasing point,to generate an optical double sideband-suppressed carrier. The input tothe DD-MZM are binary phase shift keying (BPSK), quadrature phase shiftkeying (QPSK), 8-phase shift keying (8-PSK) and 16-qaudratureamplitude modulation (16-QAM) schemes at a carrier frequency of 5 GHzwith a rate of 2 Gsym/s and a local oscillator of 15 GHz obtain an mmwaveRoF signal at 30 GHz. We evaluate the generation and performancesof the proposed system in terms of the power penalty, the error vectormagnitude and the bit error rate (BER). Impairments including the selfphasemodulation, chromatic dispersion and attenuation are consideredwhen modelling the single mode fibre (SMF) based on the symmetricalsplit step Fourier method. We show that the power efficiency improves inthe optimum region on average by ~11 dB, ~11 dB, ~12 dB and ~18 dBfor BPSK, QPSK, 8-PSK and 16-QAM, respectively for the same opticallaunch power over 10, 30 and 50 km of SMF compared to the linear andnon-linear regions.
Keywords:
Optical millimetre wave radioover fibre (MM-WAVE-RoF)Self-Phase modulation (SPM)Chromatic dispersion (CD)Optimum optical launchpower (OLP
Authors
Arash Bahrami
Optical Communications Research Group, NCRLab, Faculty of Engineering and Environment, NorthumbriaUniversity, Newcastle upon Tyne, United Kingdom
Wai Pang Ng
Optical Communications Research Group, NCRLab, Faculty of Engineering and Environment, NorthumbriaUniversity, Newcastle upon Tyne, United Kingdom
Zabih Ghassemlooy
Optical Communications Research Group, NCRLab, Faculty of Engineering and Environment, NorthumbriaUniversity, Newcastle upon Tyne,United Kingdom
Thavamaran Kanesan
TM Research & Development, TM Innovation Centre, 63000 Cyberjaya, Selangor, Malaysia