Uploaded August 2022 | Updated September 2026, 3 weeks ago

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Link to my free E-book on the Nonlinear Schrodinger Equation:
github.com/OleKrarup123/NLSE-primer/blob/main/NLSE_primer.pdf

Explanations of couplers:
fiberoptics4sale.com/blogs/wave-optics/directional-couplers?_pos=2&_sid=ed2759778&_ss=r

rp-photonics.com/fiber_couplers.html

Detailed explanation of Isolators and Circulators:
fiberoptics4sale.com/blogs/wave-optics/optical-isolators-and-circulators

Numerical simulation of the propagation of light in couplers:
youtube.com/watch?v=4O-1CJx4s4w