Minor changes from lab pc

Functions/Lab_helper/measureMZMtransferfunction.m

@@ -0,0 +1,54 @@
+
+% Measure Bias Curve of Modulator
+% 1) Loop over bias volate
+% 2) measure voltgae, current and input laser power and output laser power
+
+
+v_bias_range = [0:0.25:8];
+v_bias_meas = NaN(size(v_range));
+i_bias_meas = NaN(size(v_range));
+p_out_meas = NaN(size(v_range));
+
+%% DC Source
+dcs = DC_supply("active",[1,0],"voltage",[0, 6]);
+
+
+%% Optical Attenuator
+voa = OptAtten("active",[0,0,2,0],"value",[0,0,0,0],"wavelength",[1550,1550,1550,1550]);
+voa.set('value',[0,0,2,0]);
+voa.readvals();
+
+for i = 1:numel(v_bias_range)
+
+    dcs.set('voltage',[v_bias_range(i),6]);
+    % pause(1);
+
+    [p1,p2,p_out_meas(i),p4]= voa.readPower;
+    [v_meas,i_meas] = dcs.readVals;
+    v_bias_meas(i)=v_meas(1);
+    i_bias_meas(i)= i_meas(1);
+
+    figure(1)
+    clf
+    subplot(2,1,1)
+    hold on
+    plot(v_bias_meas,p_out_meas,'DisplayName','MZM TF in dB');
+    xlabel('V_{bias} in V');
+    ylabel('P_{out} in dBm');
+    grid on
+    xlim([min(v_bias_range), max(v_bias_range)])
+
+
+    subplot(2,1,2)
+    hold on
+    plot(v_bias_meas,db2pow(p_out_meas),'DisplayName','MZM TF in mW');
+    xlabel('V_{bias} in V');
+    ylabel('P_{out} in mW');
+    grid on
+    xlim([min(v_bias_range), max(v_bias_range)])
+
+end
+
+
+
+