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📄 help.m

📁 implementation of a formula
💻 M
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% fisier help
% a = raza miezului
% lambda = lungimea de unda; 850, 1300 sau 1550 nm
% V = frecventa normalizata; V = 2*pi*a/(lambda*sqrt(n1^2-n2^2)) 
% ro = extensia modala a campului modal
% k = numar de unda
% c = viteza luminii in vid
% f = frecventa
% n1,n2 = indicii de refractie ai celor doua medii din FO, miez
% respectiv invelis; n1>n2
% vf = viteza de faza; vf=omega_0/beta_0
% vg = viteza de grup; vg=(dbeta/domega)omega=omega_0
% psi_gauss = aproximarea gaussiana a campului modal; psi_gauss(r)=exp(-r^2/ro^2)

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