Recent content by vinny

clear all close all clc options = odeset('RelTol',1e-4,'AbsTol',[1e-4 1e-4 1e-5]); [T,Y] = ode45(@rate_equation,[0 10],[0 0], options); plot(T,Y(:,1)); title('carriers density in high laser level') hold on; When I run this I get the following errors ? Undefined function or method 'd' for input...

function dy = rate_equation(t,y) dy = zeros(2,1); ni=0.9; Lambda= 1.55*10^-6; q= 1.602*10^-19; V= 1.75*10^16; a= 0.5*10^-20; E= 1*10^-22; Tau= 2.1*10^-9; Ntr= 1*10^24; Gamma= 0.3; B= 1*10^-16; Alphai= 3000; Bsp= 1*10^-4; ng= 3.7; R1=0.32; R2= 0.32; L= 350*10^-6; Alpham =...

Hi, I've attached the problem that I'm trying to solve. I've also done the manual calculations to calculate Ithreshold. I'm not very good with MATLAB and I need MATLAB code for laser rate equations and I also need to plot LI characteristic of the laser. I_th=qV/(η_i τ) N_th=qV/(η_i τ)...