O-band Amp Characterization Measurement

Functions/Lab_helper/waitUntilClick.m

@@ -1,20 +1,50 @@
-function waitUntilClick()
-    % Create the UI figure
-    fig = uifigure('Name', 'Pause Execution', 'Position', [100 100 300 150]);
+function waitUntilClick(options)
 
-    % Create a label to inform the user
-    uilabel(fig, 'Position', [50 80 200 40], 'Text', 'Click "Continue" to proceed', ...
-            'FontSize', 14, 'HorizontalAlignment', 'center');
+% use like this to stop any computation and wait for user to press ENTER or
+% Continue button. I used this in the lab to wait until smth settled or I
+% set a device to a certain operating point...
 
-    % Create the "Continue" button
-    continueButton = uibutton(fig, 'push', 'Text', 'Continue', 'Position', [100 20 100 40], ...
-                              'ButtonPushedFcn', @(src, event) closeWindow());
+% USAGE:
+% waitUntilClick;
+
+% OPTIONAL: provide input text that is prompted :-)
+% usrcmd = sprintf('Laser to %d dBm',p);
+% waitUntilClick('Text',usrcmd);
+
+
+arguments
+    options.Text string = "Click ""Continue"" to proceed"
+end
+
+% Create the UI figure
+fig = uifigure('Name', 'Pause Execution', ...
+    'Position', [100 100 300 150], ...
+    'KeyPressFcn', @(src,event) keyHandler(event));
+
+% Create a label with custom text
+uilabel(fig, ...
+    'Position', [30 70 240 60], ...
+    'Text', options.Text, ...
+    'FontSize', 14, ...
+    'HorizontalAlignment', 'center', ...
+    'WordWrap','on');
+
+% Create the "Continue" button
+uibutton(fig, 'push', ...
+    'Text', 'Continue', ...
+    'Position', [100 20 100 40], ...
+    'ButtonPushedFcn', @(src, event) closeWindow());
 
-    % Function to close the window when "Continue" is clicked
     function closeWindow()
-        delete(fig); % Close the figure window
+        delete(fig);
     end
 
-    % Wait until the figure is closed to resume execution
-    waitfor(fig);
-end
+    function keyHandler(event)
+        if strcmp(event.Key,'return') || strcmp(event.Key,'enter')
+            closeWindow();
+        end
+    end
+
+% Wait until the figure is closed
+waitfor(fig);
+end

Functions/Metrics/noiseFigureFromOSNR.m

@@ -0,0 +1,20 @@
+function NF_dB = noiseFigureFromOSNR(Pin_dBm, OSNR_dB, lambda_nm, Bref_nm)
+
+    if nargin < 4
+        Bref_nm = 0.1; % OSNR reference bandwidth
+    end
+
+    h = 6.62607015e-34;   % Planck [J*s]
+    c = 299792458;        % speed of light [m/s]
+
+    lambda = lambda_nm * 1e-9;
+    nu = c / lambda;
+
+    % convert reference bandwidth from nm to Hz
+    Bref_Hz = Bref_nm*1e-9 * c / lambda^2;
+
+    % ASE noise power density in dBm
+    Pn_dBm = 10*log10(h*nu*Bref_Hz) + 30;
+
+    NF_dB = Pin_dBm - OSNR_dB - Pn_dBm;
+end