So, if I for example have a single mode waveguide coming into a multimode wavguide this will create an interference pattern and self-imaging, right? At some points, I will get an overlap of two images, which creates a "rectangular" shape of the crosssection, instead of a sinusoidal function...
Thank you for your reply, daevnn. Sorry, I might have labelled it wrong. It is probably a basics problem. Yes, I have seen these before. I think I understand how the waves propagate. What I tried to say is: when I "cut" the waveguide (like a cross section), I will get a sinusoidal function for...
So, the field distribution would be a cross section of the waveguide, right? What I meant with the "output profile" was more like the Power Profile. So the question is: can I have a power profile of a single mode waveguide that is for example rectangular shaped?
Hello there,
I was wondering if the power profile of a single mode waveguide can be changed? I mean, a wave that travels through the waveguide will have a harmonic shape, right? Is it possible to get a different shape of the power profile?
Thank you :)
I know Snell's Law and I do understand that there are single and multimode fibers. A fiber carries light hence to total internal reflection. so far so good. But is it only a single mode fibre that works with total internal reflection? And if so, how does the multimode fibre carry light then?