#opticalfibers — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #opticalfibers, aggregated by home.social.
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Paper accepted! 🥳
"Explaining and exploiting the radial memory effect in multimode optical fibres"
(A slightly older version is on ArXiv: https://arxiv.org/abs/2508.11389 )
When (coherent) light propagates in a multimode fibre, each mode accumulates a slightly different phase, so the output looks like a random speckle patter.
But it is NOT random!
This non-randomness has a number of consequences, among them the fact that the you get predictable patterns in the apparently random output. We show that a focused input will always result in a ring of excess intensity at the same radius of the input, we give a simple but rigorous explanation of why this happens, and suggest how this might be useful in practice. -
Paper accepted! 🥳
"Explaining and exploiting the radial memory effect in multimode optical fibres"
(A slightly older version is on ArXiv: https://arxiv.org/abs/2508.11389 )
When (coherent) light propagates in a multimode fibre, each mode accumulates a slightly different phase, so the output looks like a random speckle patter.
But it is NOT random!
This non-randomness has a number of consequences, among them the fact that the you get predictable patterns in the apparently random output. We show that a focused input will always result in a ring of excess intensity at the same radius of the input, we give a simple but rigorous explanation of why this happens, and suggest how this might be useful in practice. -
#PhysicsFactlet
Optical fibre modes are weird but oddly mesmerizing.
#Optics #OpticalFibers -
#PhysicsFactlet
Optical fibre modes are weird but oddly mesmerizing.
#Optics #OpticalFibers