What is an optical supermode? Is it related to a specific type of symmetry?

Am studying a paper,

that includes a network of coupled resonators, and it mentions that the eigenstates of this system form the optical supermodes if the array.

Are there ant good sources to learn more about optical supermodes?

  • $\begingroup$ I have seen the term supermode used in the context of a multimode cavity, where the nearly degenerate tranverse modes of the cavity get mixed due to coupling to presence of dielectrics inside (ultracold atoms). So it is like a new eigenbasis of the transverse profiles of the light in a multimode cavity. I'll post a relevant link later. $\endgroup$ – wcc May 10 '19 at 16:21
  • 1
    $\begingroup$ Relevant open access paper: Supermodes for optical transmission. $\endgroup$ – Ruslan May 10 '19 at 17:21

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