Author Affiliations
1COMSATS Institute of Information Technology (CIIT), Islamabad, Pakistan2Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong, China3National University of Sciences and Technology (NUST), Islamabad, Pakistanshow less
Fig. 1. Simulation setup of 56 GBaud PAM-4 transmission system.
Fig. 2. Contour plots at (a) −4.41 dBm, (b) −5.06 dBm, (c) −5.71 dBm, (d) −6.36 dBm, (e) −7.01 dBm, and (f) −7.66 dBm for 30 GHz. (g) Contour lines at Z = 0 for different ROPs at 30 GHz.
Fig. 3. Contour lines at Z = 0 for different ROPs at (a) 18 GHz, (b) 19 GHz, (c) 20 GHz, and (d) 25 GHz.
Fig. 4. (a) SER versus ROPs at different bandwidths. (b) Contour plot at −5.71 dBm for 18, 19, 20, 25, and 30 GHz. (c) P versus ROPs for 18, 19, 20, 25, and 30 GHz. (d) P versus receiver bandwidths at −4.41, −5.06, −5.71, −6.36, and −7.01 dBm.(e) Comparison among SERC, SERQ, and SERGGD as a function of ROPs at 30 GHz. (f) SER verus P for 18, 19, 20, 25, and 30 GHz at 10 km.
Fig. 5. (a) Eye-diagram and (b) probability distribution function of the received signal of PAM-4 at −7.66 dBm at 30 GHz.
Fig. 6. Experimental setup of 56 Gbaud PAM-4 transmission system.
Fig. 7. Contour lines at Z = 0 for −4, −5, −6, −7. (a) BtB. (b) 10 km. (c) SER versus ROPs for BtB and 10 km. (d) P versus ROPs at BtB and 10 km. (e) SER versus P at BtB and 10 km.
Fig. 8. (a) Eye-diagram and (b) probability distribution function of the received signal of PAM-4 at −7 dBm at 10 km.
Parameter | Values |
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Length (km) | 10 | Wavelength (nm) | 1310 | Linewidth (MHz) | 5 | Rx. BW (GHz) | 18,19,20,25, and 30 | Power (dBm) | 0 | PD thermal noise () | 20 | PD dark current (nA) | 10 | PD responsivity (A/W) | 1 |
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Table 1. Simulation Parameters