Performance of O-Band of Optical Data Center Interconnects
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This book addresses the transmission performance of PAM-based optical interconnect operating at 1310 nm without using optical amplifications. Results are presented for both directly modulated laser (DML)- and externally modulated laser (EML)-based links operating with 4- and 8-PAM signaling and carry bit rate of 56, 112, and 224 Gbps. Polarization-division multiplexing (PDM) technique is applied to the EML-based link to double the bit rate without degradation the transmission distance. Analytical expressions are derived to characterize the bit error rate (BER) floor and it dependence on the re...
This book addresses the transmission performance of PAM-based optical interconnect operating at 1310 nm without using optical amplifications. Results are presented for both directly modulated laser (DML)- and externally modulated laser (EML)-based links operating with 4- and 8-PAM signaling and carry bit rate of 56, 112, and 224 Gbps. Polarization-division multiplexing (PDM) technique is applied to the EML-based link to double the bit rate without degradation the transmission distance. Analytical expressions are derived to characterize the bit error rate (BER) floor and it dependence on the relative intensity noise (RIN) of the transmission laser source and also addresses the transmission performance of PAM-based wavelength division multiplexing (WDM) interconnect operating in the O-band with 112 Gbps channel data rate and 200 GHz channel spacing and without using optical amplification. The effect of four-wave mixing (FWM), associated with nonlinear fiber optics, on the transmission performance of the unamplified O-band PAM-WDM interconnect is investigated analytically. The simulation results, obtained using Optisystem Ver. 15.
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