Smallest curvature radius in gradient index optics

AI Thread Summary
The smallest radius of curvature achievable with current gradient index optics (GRIN) technology is approximately 5mm, according to manufacturer specifications. This radius determines how much a ray of light can be curved within the optical system. The grading of the index must be calculated to support specific mean bend radii, which involves comparing the maximum refractive index with that of transparent materials. Understanding these parameters is crucial for optimizing GRIN fiber performance. Current advancements in GRIN technology continue to push the boundaries of light manipulation.
Sunfire
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Hello,

would someone know what is the smallest radius of curvature achievable with current gradient index optics (GRIN) technology?
I mean, how much could one "curve" a ray of light?

Many thanks! :smile:
 
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That would be proportional to the smallest radius turn that a graded index fibre can still work at - and manufacturers tend to publish that figure.
I'm seeing figures of order 5mm.

You could figure out what the grading needs to be to support a particular mean bend radius and compare the maximum refractive index with transparent materials.
 
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