opticspy
attenuating lp modes in a step-index fiber
I am trying to propagate lp modes down a cylindrical step-index fiber using this package. Strangely enough, I am finding that the lp modes are attenuating as they go along the fiber, which of course should not be the case. Even stranger, if I divide the free-space wavelength by two, lightpipes seems to recover the expected result of no attenuation. I've attached a python notebook illustrating this behavior.
Yes, it doesn't seem to change the result.
On Thu, Jan 16, 2020, 2:22 AM FredvanGoor [email protected] wrote:
Did you try to increase the number of grid points?
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