Fig. 2: Experimental photonic blind interference cancellation setup. | Nature Communications

Fig. 2: Experimental photonic blind interference cancellation setup.

From: Real-time photonic blind interference cancellation

Fig. 2

a Setup diagram. b Scale schematic of the experimental micro-ring resonators (variation in N-doping concentration not shown). c Packaged photonic chip and controller. d ZCU216 FPGA development board. The experimental setup generates linearly mixed signals in software and uses an arbitrary waveform generator (AWG) and Mach-Zehnder modulators (MZMs) to modulate them onto distinct wavelengths of light. An FPGA performs statistic calculation and an integrated CPU runs the optimization algorithm. EDFA: erbium-doped fiber amplifier, PC polarization controller, PD photodetector, I/O input/output.

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