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

minimal examplw

Browse Source
This commit is contained in:
Silas Oettinghaus
2025-12-22 09:02:57 +01:00
parent ee694a30ba
commit 687d3005eb
7 changed files with 165 additions and 286 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
projects/HighSpeedExperiment_2024/a_minimal_example.m
View File

@@ -13,17 +13,22 @@ fp.where('Runs','pam_level','EQUALS', 4);
fp.where('Runs','rop_attenuation','EQUALS', 0);
fp.where('Runs','is_mpi','EQUALS', 0);
fp.where('Runs', 'db_mode','EQUALS', 0);
fields = db.getTableFieldNames('Runs');
% fields = db.getTableFieldNames('Runs');
% [dataTable,~] = db.queryDB(fp, fields);
fields = db.getTableFieldNames('power_state_info');
fields = [fields; db.getTableFieldNames('Runs')];
fields = [fields; db.getTableFieldNames('dashboard_ungrouped_alltime')]; %dashboard_ungrouped_after_nov_2025 dashboard_ungrouped_aug_nov_2025
fields = unique(fields);
[dataTable,~] = db.queryDB(fp, fields);
fsym = dataTable.symbolrate;
M = double(dataTable.pam_level);
duob_mode = db_mode(strrep(dataTable.db_mode,'"',''));
fsym = dataTable(1,:).symbolrate;
M = double(dataTable(1,:).pam_level);
duob_mode = db_mode(strrep(dataTable(1,:).db_mode,'"',''));
% Load and Sync signal data from DB
[Tx_bits, Symbols, Scpe_cell, ~] = loadAndSyncSignalDataFromDb(dataTable, dsp_options);
[Tx_bits, Symbols, Scpe_cell, ~] = loadAndSyncSignalDataFromDb(dataTable(1,:), dsp_options);
% Preprocess signal
Scpe_sig = preprocessSignal(Scpe_cell{1}, Symbols, fsym);
@@ -31,6 +36,40 @@ Scpe_sig = preprocessSignal(Scpe_cell{1}, Symbols, fsym);
% Show spectrum
Scpe_sig.spectrum("fignum",1,"displayname",'Rx')
% meta = struct();
% meta.varnames = dataTable.Properties.VariableNames;
%
% for k = 1:numel(meta.varnames)
% v = meta.varnames{k};
% col = dataTable.(v);
%
% if isnumeric(col) || islogical(col)
% meta.(v) = col;
% elseif isstring(col)
% meta.(v) = cellstr(col);
% elseif iscellstr(col)
% meta.(v) = col;
% else
% error("Unsupported table column type: %s", class(col))
% end
% end
% exp_data.metadata = meta;
exp_data = struct();
exp_data.metadata = dataTable;
exp_data.tx_bits = Tx_bits.signal;
exp_data.tx_signal = Symbols.signal;
exp_data.rx_signal_2sps = Scpe_sig.signal;
fname = dataTable(1,:).rx_raw_path;
[~, filename, ext] = fileparts(fname);
filename = strrep(filename,"_raw_signal","");
filename = filename + ext;
savepath = fullfile('F:\2024\sioe_labor\export_skuehl\',filename);
save(savepath,'exp_data','-v7.3');

127
projects/Lab_analysis/amplifier_characterization.m
View File

@@ -1,127 +0,0 @@
% Silas Amplifier characterization
laser = Exfo_laser("mainframe_channel",1,"safety_mode",0,"connection_id",'10','lab_interface','gpib');
laser.getLaserInfo();
laser.disableLaser;
laser.setWavelength(1310);
laser.enableLaser;
% pm = OptPowerMeter8153A("active",[0,1],"wavelength_nm",[1550,1310]);
% pm.readPower
% pdfa = Thor_PDFA();
%%
params.laserpower = [-30,-20,-10,0];
params.lambda = [1260:5:1360]; %calcWavelengthPlan(16, 400e9 , 1310);
params.pump = [50,75,100];
wh = DataStorage(params);
wh.addStorage("spectrum_osa");
wh.addStorage("wavelength_osa");
wh.addStorage("psig_osa");
wh.addStorage("pase_osa");
wh.addStorage("osnr_osa");
wh.addStorage("amp_gain");
wh.addStorage("psig_total");
cols = linspecer(numel(params.laserpower));
ccnt = 0;
for p = params.laserpower
ccnt=ccnt+1;
laser.setWavelength(params.lambda(1));
usrcmd = sprintf('Laser to %d dBm',p);
waitUntilClick('Text',usrcmd);
for pmp = params.pump
% pdfa.setPumpLevel(pmp);
usrcmd = sprintf('Amp to %d mA',2*pmp);
waitUntilClick('Text',usrcmd);
for w = params.lambda
laser.setWavelength(w)
% pm.setWavelength([1550, w]);
span_nm = 5;
lambda_c_nm = w;
osa = OSA_Advantest( ...
'span_nm', 40, ...
'lambda_c_nm', w, ...
'resolution_nm', 0.1, ...
'sampling_points', 1001 );
osa.configure();
% OSA
[lambda_nm, psd_dBm] = osa.measure();
osnr = osa.computeOSNR('bw_signal_nm',0.01,'ref_bw_nm',0.1,'debugplots',0,...
'carrier_frequency',w,'noise_guard_nm',1,'noise_window_nm',1);
osa.plot("FigureNumber",pmp+1,"Color",cols(ccnt,:));
xlabel('Wavelength [nm]');
ylabel('Opt. Spectrum [dBm]');
xlim([params.lambda(1)-5 params.lambda(end)+5])
grid minor
% Powermeter
totalpower=10*log10(sum(10.^(psd_dBm./10)));
% [totalpower]=pm.readPower;
% totalpower=totalpower(2) + 20; %20dB attenuation with eigenlight to satisfy 3dB max of PMeter
wh.addValueToStorage(lambda_nm,'wavelength_osa',p,w,pmp);
wh.addValueToStorage(psd_dBm,'spectrum_osa',p,w,pmp);
wh.addValueToStorage(osnr.p_ase_db,'pase_osa',p,w,pmp);
wh.addValueToStorage(osnr.p_sig_db,'psig_osa',p,w,pmp);
wh.addValueToStorage(osnr,'osnr_osa',p,w,pmp);
wh.addValueToStorage(totalpower,'psig_total',p,w,pmp);
end
end
% before tuning all the way back to 1270nm set PDFA off
% pdfa.setPumpLevel(0);
% pdfa.disablePDFA;
end
%% OSNR
figure(2);hold on
for p = [-30:10:0]
pmp = 100;
osnr = wh.getStoValue('osnr_osa',p,params.lambda,pmp);
osnr_measured_dB = cellfun(@(x) x.measured_dB, osnr);
osnr_direct_dB = cellfun(@(x) x.direct_dB, osnr);
plot(params.lambda,osnr_direct_dB,'DisplayName',sprintf('P_{in}: %d dB ',p));
end
legend
%% P out
figure(3);hold on
for p = [-30:10:0]
pmp = 100;
psig_osa = wh.getStoValue('psig_osa',p,params.lambda,pmp)+3;
pl=plot(params.lambda,psig_osa,'DisplayName',sprintf('P_{signal}: %d dB ',p));
psig_powermeter = wh.getStoValue('psig_total',p,params.lambda,pmp)+3;
plot(params.lambda,psig_powermeter,'DisplayName',sprintf('P_{total}: %d dB ',p),'LineStyle','--','Color',pl.Color);
yline(p,'Color',pl.Color,'DisplayName',sprintf('P_{total}: %d dB ',p));
end
legend
%% GAIN
figure(3);hold on
for p = [-30:10:0]
pmp = 50;
psig_osa = wh.getStoValue('psig_osa',p,params.lambda,pmp);
% psig_powermeter = wh.getStoValue('psig_powermeter',p,params.lambda,pmp);
g = psig_osa-p;
pl=plot(params.lambda,g,'DisplayName',sprintf('P_{in}: %d dB ',p));
end
legend

54
projects/Lab_analysis/laser_characterization.m
View File

@@ -1,54 +0,0 @@
laser = Exfo_laser("mainframe_channel",1,"safety_mode",0,"connection_id",'10','lab_interface','gpib');
laser.getLaserInfo();
pm = OptPowerMeter8153A("active",[0,1],"wavelength_nm",[1550,start_wavelength]);
pm.readPower
laserparams.lambda = [1260:2:1360];
laserparams.laserpower = [0,3,6,8,10];
laser_output_wh = DataStorage(laserparams);
laser_output_wh.addStorage("plaser");
pm = OptPowerMeter8153A("active",[0,1],"wavelength_nm",[1550,1310]);
laser.setWavelength(1310);
cw_pwr = NaN(numel(laserparams.laserpower),numel(laserparams.lambda));
row = 1;
for p = laserparams.laserpower
laser.setPower(p);
cnt = 1;
for w = laserparams.lambda
laser.setWavelength(w);
pm.setWavelength([1550,w]);
for i = 1:20
[totalpower]=pm.readPower;
cw_measurement(i)=totalpower(2)+10;
cw_pwr(row,cnt) = mean(cw_measurement);
pause(3);
end
laser_output_wh.addValueToStorage(cw_measurement,'plaser',w,p);
figure(2027);clf
plot(laserparams.lambda,cw_pwr(1:row,:),'Marker','*');
xlabel('Wavelength [nm]');
ylabel('Laser Output Power [dBm]');
ylim([0, 11]);
xlim([laserparams.lambda(1) laserparams.lambda(end)])
grid minor
cnt = cnt+1;
end
row = row+1;
end
figure();hold on
for p = laserparams.laserpower
plot(laserparams.lambda,laser_output_wh.getStoValue('plaser',laserparams.lambda,p))
end
xlabel('Wavelength [nm]');
ylabel('Laser Output Power [dBm]');
ylim([0, 11]);
xlim([laserparams.lambda(1) laserparams.lambda(end)])
grid minor