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Waveguidewaveguide coupling or directional coupler 
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#1
Feb2912, 03:16 AM

P: 3

Hi,
There are probably hundreds of books explaining (mathematically!!) how a directional coupler works. Mathematically its straight forward how energy completely transfers from one waveguide to another waveguide periodically. But what I fail to understand is what is the physical phenomena driving all the energy from one waveguide to another and vice versa. Any opinion will be very much appreciated. Thank you 


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