Two coupled resonators form a figure eight-like structure

In the top device in this illustration, two coupled resonators form a figure eight-like structure. Input light travels from the waveguide through the resonators, entering as one color and emerging as another. The bottom device uses three coupled resonators: a small ring resonator, a long oval ...This is an NSF Multimedia Gallery item.

https://www.nsf.gov/news/mmg/mmg_disp.jsp?med_id=187851

Source: NSF Multimedia Gallery - December 13, 2021 Category: Science Source Type: video

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