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This commit is contained in:
Silas Oettinghaus
2026-02-05 15:50:49 +01:00
parent 3d47813f1e
commit bc8ebc044f
6 changed files with 26 additions and 21 deletions
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19
Functions/Theory/Dissertation/dispersion_around_zdw.m
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@@ -10,12 +10,12 @@
% ------------------------------------------------------------
lambda0_nm = 1310;
S0 = 0.08;
S0 = [0.07,0.09]';
% wavelength axis around ZDW
lambda_nm = linspace(lambda0_nm-40, lambda0_nm+40, 400);
lambda_nm = linspace(lambda0_nm-60, lambda0_nm+60, 400);
% exact dispersion model
D_exact = (S0/4) .* ( ...
D_exact = (S0./4) .* ( ...
lambda_nm - (lambda0_nm^4)./(lambda_nm.^3) );
% linearized model around ZDW
@@ -23,11 +23,16 @@ D_lin = S0 .* (lambda_nm - lambda0_nm);
% plot
figure('Color','w'); hold on;
plot(lambda_nm, D_exact, 'LineWidth',2, 'DisplayName','Exact model');
plot(lambda_nm, D_lin, '--', 'LineWidth',2, 'DisplayName','Linearized model');
cols = cbrewer2('paired',4);
plot(lambda_nm, D_lin(1,:), '-', 'LineWidth',2, 'DisplayName','Linearized model','Color',[cols(1,:)]);
plot(lambda_nm, D_exact(1,:), 'LineWidth',2, 'DisplayName',sprintf('Exact model'),'Color',[cols(2,:)]);
xlabel('Wavelength \lambda [nm]');
ylabel('Dispersion D(\lambda) [ps/(nm·km)]');
plot(lambda_nm, D_lin(2,:), '-', 'LineWidth',2, 'HandleVisibility','off','Color',[cols(3,:)]);
plot(lambda_nm, D_exact(2,:), 'LineWidth',2, 'HandleVisibility','off','Color',[cols(4,:)]);
xlabel('Wavelength $\lambda$ [nm]','Interpreter','latex');
ylabel('D($\lambda$) [ps/(nm km)]','Interpreter','latex');
title('Chromatic Dispersion Around the ZDW');
legend('Location','best');
grid on; box on;