data_alice_1 = load('alice_spectrum_mc_1550_hi_res');
data_alice_2 = load('alice_spectrum_mc_low_res');
data_alice_3 = load('alice_spectrum_mc_signal_o_band');

data_bob_1 = load('bob_spectrum_mc_signal_o_band');
data_bob_2 = load('bob_spectrum_mc');

plot(data_alice_1(:, 1), data_alice_1(:, 2), 'r',...
     data_alice_2(:, 1), data_alice_2(:, 2), 'g',...
     data_alice_3(:, 1), data_alice_3(:, 2), ''),...
     xlabel('Wavelength (nm)'),...
     ylabel('Counts'),...
     title('Counts versus Wavelength (nm)'),...
     grid;
     
legend('C-band', 'O-band', 'w mc');