A polarization multiplexing-based long-haul optical communication system using the duo-binary modulation technique is proposed and analysed using numerical simulations. The combination of cascaded dispersion compensat...
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A polarization multiplexing-based long-haul optical communication system using the duo-binary modulation technique is proposed and analysed using numerical simulations. The combination of cascaded dispersion compensation fiber (DCF) and single mode fiber (SMF) is used in the proposed system which effectively minimizes the signal distortion and improves the bit error rate (BER) value and the quality factor (Q-factor) obtained, which indicates the capability of a system to differentiate between the logical 1's and 0's in the receiver section. The system can effectively transmit 10 Gbps data over 120 km SMF along with 24 km DCF as well as 800 m free space optical (FSO) distance for an input power of 10 dBm. The obtained minimum BER value of 3.84 x 10- 10 and the Q-factor of 6.29 proves the efficiency of the system. The obtained results confirm that the nonlinear distortions arising due to increasing the input power are significantly reduced and the optimized result is obtained for 10 dBm input power. The variation of the Q-factor with the effective area of the fiber is also investigated. The achieved BER value of 1.67 x 10- 9 for transmission of 20 Gbps data over a distance of 70 km SMF + 14 km DCF + 800 m FSO proves that the system can be used to transmit high data rate in long-range communication.
In this paper, the performance of different modulation schemes, namely, Return-to-Zero (RZ), Non-Return-to-Zero (NRZ), and duo-binary schemes are analyzed on a 20 Gbps optical transmission system with dispersion compe...
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This paper introduces the use of duo-binary modulation for a 10-Gbps RF on-chip long range serial link. RF signaling is used to reduce the delay so that a 5 mm line is crossed in less than 50 ps. Furthermore, the duo-...
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ISBN:
(纸本)9781728118536
This paper introduces the use of duo-binary modulation for a 10-Gbps RF on-chip long range serial link. RF signaling is used to reduce the delay so that a 5 mm line is crossed in less than 50 ps. Furthermore, the duo-binary approach is used to reach higher bandwidth efficiency since this modulation uses a two-time smaller bandwidth for the transmission. The RF design complexity is also reduced thanks to duo-binary modulation.
This paper presents an experimental demonstration of 100-Gbps time-and wavelength-division multiplexed passive optical network (TWDM-PON) with 4 x 25-Gbps downstream transmission. We take a comparison of faster-than-N...
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This paper presents an experimental demonstration of 100-Gbps time-and wavelength-division multiplexed passive optical network (TWDM-PON) with 4 x 25-Gbps downstream transmission. We take a comparison of faster-than-Nyquist nonreturn-to-zero (FTN-NRZ), four-level pulse amplitude modulation (PAM-4), electrical duobinary (EDB), and optical duobinary (ODB) on the same transmission link. The use of low-cost 10-Gbps optics in combination with digital signal processing (DSP) makes it feasible for a 25-Gb/s per wavelength transmission over 20-km standard single-mode fiber (SSMF) in a cost-effective way. The spectra efficiency and ISI robustness by going to the higher rate are analyzed theoretically. We achieve link budgets of 33.18 dB for FTN-NRZ, and less than 30 dB budgets for PAM-4, ODB, and EDB in downstream transmission. FTN combination with feedforward equalization (FFE) allows FTN-NRZ to have a 4.18 dB margin in power requirement of PR(x) 30 of 10G-EPON, whereas PAM-4 and ODB with FFE also meet PR(x) 30 with 0.25 dB margin. The results indicate that FTN-NRZ, PAM-4, and ODB can be used for 100G-EPON with 10-Gbps optics, and FTN-NRZ has better performance than other modulations, which is more suitable for next-generation 100G-EPON transmission technique with low cost.
作者：
Binh, Le NguyenMonash Univ
Dept Elect & Comp Syst Engn Ctr Telecommun & Informat Engn Clayton Vic 3168 Australia
Transmission of 40 Gb/s alternating phases 0 and pi duo-binary modulation format with 67%, 50% and 33% pulse width (modulationduobinary carrier suppression-CS and carrier maximum pulse carving) is demonstrated. A min...
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ISBN:
(纸本)0819464481
Transmission of 40 Gb/s alternating phases 0 and pi duo-binary modulation format with 67%, 50% and 33% pulse width (modulationduobinary carrier suppression-CS and carrier maximum pulse carving) is demonstrated. A minimum 136 ps/nm dispersion tolerance can be achieved at this transmission rate. At least 5 dB and 1.2 dB receiver sensitivity improvement are achieved for CSRZ 67% and RZ 50% duobinarymodulation respectively as compared with the experimental measurement under CSRZ-DPSK transmission over 320 km 3-span optically amplified dispersion compensated standard single mode fiber system.
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