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Bandwidth limitation of current wireless frequency bands and the energy consumption are challenges that have to be addressed by future 5G wireless networks. The millimeter wave (mm-wave) spectrum, spanning 30 GHz to 300 GHz, is a prime candidate to resolve the bandwidth limitation issue in future networks. High-speed electronics, though, are quite energy-inefficient for such mm-wave signal generation...
Fourier-domain (FD) mode locking of integrated laser diode structures is studied theoretically and their application for wavelength division multiplexing (WDM) comb generation for future terabits per second interconnects is discussed. Twenty-five-gigahertz FD mode-locked structures with ring and Mach–Zehnder-based bandpass filters show comb widths of 1.0–1.8 THz, i.e., 40–72 comb lines, but the mode...
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