Extended Data Fig. 6: Measured inter-channel interference patterns compared with the model-fitted patterns for device pairs excited by an infrared supercontinuum source.
From: Time-asymmetric loop around an exceptional point over the full optical communications band
a, Patterns for ACW–CW EEP device pair 2 (L = 1.0 mm; see Extended Data Fig. 2a). b, Patterns for ACW–CW EEP device pair 4 (L = 0.5 mm). In the acquisition of the experimental diffraction patterns, we integrate 100 camera images to remove parasitic low-frequency electrical noise corresponding to 60-Hz harmonics. In b, the experimental patterns at 1,600 nm and 1,650 nm for the ACW EEP device are missing owing to the very low signal-to-noise ratio at those conditions.
