silas/imdd_silas
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Theory stuff from sials work pc; minor stuff here and there

Browse Source
This commit is contained in:
Silas Oettinghaus
2026-02-19 15:11:32 +01:00
parent 1b8d83dec0
commit 2a724b833f
14 changed files with 810 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
Functions/Theory/power_fading.m
View File

@@ -5,7 +5,7 @@
%% Fiber and system parameters
lambda0 = 1310e-9; % zero-dispersion wavelength [m]
lambda = 1275e-9; % operating wavelength [m]
lambda = 1290e-9; % operating wavelength [m]
S0 = 0.09; % dispersion slope [ps/(nm²·km)]
L = 10e3; % fiber length [m]
c = physconst('lightspeed');
@@ -30,7 +30,7 @@ plot(f/1e9, 10*log10(H), 'LineWidth', 1.8,'Color','black');
grid on; box on;
xlabel('Frequency [GHz]');
ylabel('Magnitude [dB]');
title(sprintf('IM/DD Power Fading: 10 km; 1275nm', lambda*1e9, L/1000),"Interpreter","latex");
% title(sprintf('IM/DD Power Fading: 10 km; 1275nm', lambda*1e9, L/1000),"Interpreter","latex");
ylim([-30 0]);
%% Mark analytic first-null frequency
@@ -38,3 +38,5 @@ f_null = sqrt(c*(0.5)/(abs(D_si)*lambda^2*L));
xline(f_null/1e9, 'r--', 'LineWidth', 1.2, ...
'Label', sprintf('f_{null}=%.1f GHz', f_null/1e9), ...
'LabelOrientation', 'horizontal', 'LabelVerticalAlignment', 'bottom');
mat2tikz_improved('C:\Users\Silas\Documents\6971e0b65b380ca6d71c837f\02_IMDD_System\tikz\dispersion\power_fading.tikz')