 ##  [Mode Conversion](/mode-conversion) 

  ##  [Mode Conversion](https://engineering.quantumdictionary.io/mode-conversion-0) 

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

The physical process by which energy or signals transfer from one propagation mode to another within a transmission structure or device (for example, differential to common mode), caused by asymmetry, discontinuities, or bounded-condition changes that break the orthogonality of the modal basis.