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R. ARYA1, JOSEPH ZACHARIAS1,*
- Fiber Optics Lab, Department of Electronics and Communication Engineering, Rajiv Gandhi Institute of Technology, Kerala-686501, India
This paper proposes a full duplex system for the generation of millimeter-wave signals at different frequencies by tuning the frequency multiplication factor. The system is capable of transmitting different information at required data rate through the mm-wave signals according to their application. A uniform fiber Bragg grating based acousto-optic tunable filter (UFBG-based-AOTF) is employed for the generation of tunable millimeter-wave signals and this reduces the system complexity by alleviating the structured Mach-Zehnder modulators (MZM). The uplink transmission is realized by reusing the downlink optical carrier which makes the proposed system cost-effective and reliable. Besides, the bit walk-off effect which is occurred when a modulated double sideband signal gets transmitted through the fiber is addressed and compensated and it helps in improving the transmission performance to more fiber distance. A simulation link is built for the generation of tunable millimeter-wave signals with data rates of 1 Gbps, 4 Gbps and 5 Gbps over 20 GHz, 40 GHz and 60 GHz respectively. Simulation results show that the transmission distance is increased to 50 km and the bit error rate performance is improved in the proposed system when compared to the previous systems where the transmission distance is limited to about 15 km..
Acousto-optic tunable filter (AOTF), Bit walk-off effect, Different data rates, Full duplex communication, Optical millimeter-wave, Uniform fiber Bragg grating (UFBG).
Submitted at: Aug. 9, 2019
Accepted at: Dec. 10, 2019
R. ARYA, JOSEPH ZACHARIAS, Performance improved full-duplex millimeter-wave signal generation with tunable FMF by incorporating a bit walk-off effect compensation, Journal of Optoelectronics and Advanced Materials Vol. 21, Iss. 11-12, pp. 663-672 (2019)
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