Strengthen WDM and IM/DD optical tests
This commit is contained in:
Silas Oettinghaus
@@ -1,10 +1,78 @@
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classdef DP_Fiber_test < IMDDTestCase
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% Auto-generated placeholder for DP_Fiber.
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% Target: C:/Users/Silas/Documents/MATLAB/imdd_simulation/Classes/02_optical/DP_Fiber.m
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methods (Test, TestTags = {'unit', 'fast', 'optical', 'dp_fiber'})
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function constructorStoresConfigurationAndStartsWithEmptyState(testCase)
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fiber = makeIdentityFiber();
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methods (Test, TestTags = {'placeholder', 'todo'})
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function testNotImplemented(testCase)
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testCase.assumeFail("Tests for DP_Fiber are not implemented yet.");
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testCase.verifyEqual(fiber.L, 0);
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testCase.verifyEqual(fiber.dz, 1);
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testCase.verifyEqual(fiber.lambda, 1550);
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testCase.verifyEqual(fiber.rng, 7);
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testCase.verifyEqual(fiber.gamma, 0);
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testCase.verifyEqual(fiber.fa, 64e9);
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testCase.verifyEqual(fiber.X_alpha, 0);
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testCase.verifyEqual(fiber.D, 0);
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testCase.verifyEqual(fiber.Ds, 0);
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testCase.verifyEqual(fiber.Dpmd, 0);
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testCase.verifyEqual(fiber.n_waveplates, 1);
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testCase.verifyEqual(fiber.useGPU, false);
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testCase.verifyEqual(fiber.useSingle, false);
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testCase.verifyTrue(isstruct(fiber.state));
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testCase.verifyEmpty(fieldnames(fiber.state));
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end
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function processPreservesAZeroImpairmentDualPolarizationSignal(testCase)
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fiber = makeIdentityFiber();
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inputMatrix = [ ...
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1 + 1i, 2 - 1i; ...
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0.5, -0.25i; ...
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-1 + 0.2i, 0.75 - 0.5i; ...
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0, 0.25 + 0.75i];
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sigIn = Signal(inputMatrix, "fs", fiber.fa);
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sigOut = fiber.process(sigIn);
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testCase.verifyClass(sigOut, "Signal");
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testCase.verifyEqual(sigOut.fs, sigIn.fs);
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testCase.verifyEqual(size(sigOut.signal), size(sigIn.signal));
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testCase.verifyEqual(sigOut.signal, sigIn.signal, "AbsTol", 1e-12);
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testCase.verifyEqual(height(sigOut.logbook), 1);
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end
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function process_ProducesIdentityOutputForRawMatrixInput(testCase)
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fiber = makeIdentityFiber();
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inputMatrix = [ ...
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1 + 1i, 2 - 1i; ...
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0.5, -0.25i; ...
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-1 + 0.2i, 0.75 - 0.5i; ...
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0, 0.25 + 0.75i];
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sigOut = fiber.process_(inputMatrix, fiber.fa);
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testCase.verifyEqual(size(sigOut), size(inputMatrix));
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testCase.verifyEqual(sigOut, inputMatrix, "AbsTol", 1e-12);
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end
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end
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end
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function fiber = makeIdentityFiber()
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fiber = DP_Fiber( ...
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"L", 0, ...
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"dz", 1, ...
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"lambda", 1550, ...
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"rng", 7, ...
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"gamma", 0, ...
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"fa", 64e9, ...
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"X_alpha", 0, ...
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"D", 0, ...
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"Ds", 0, ...
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"Dpmd", 0, ...
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"beat_len", 1e9, ...
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"corr_len", 1e9, ...
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"manakov", 0, ...
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"SS_dphimax", 5e-3, ...
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"SS_dzmax", 1, ...
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"SS_dzmin", 1, ...
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"n_waveplates", 1, ...
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"useGPU", false, ...
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"useSingle", false);
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end
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@@ -1,10 +1,100 @@
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classdef EML_test < IMDDTestCase
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% Auto-generated placeholder for EML.
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% Target: C:/Users/Silas/Documents/MATLAB/imdd_simulation/Classes/02_optical/EML.m
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methods (Test, TestTags = {'unit', 'fast', 'optical', 'eml'})
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function constructorStoresDerivedScalarsForDeterministicIqMode(testCase)
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eml = EML( ...
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"mode", eml_mode.iq_linear, ...
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"fsimu", 64e9, ...
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"lambda", 1550, ...
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"power", 0, ...
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"linewidth", 0, ...
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"alpha", 0, ...
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"ampl_imbal", 0, ...
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"pha_imbal", 0, ...
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"bias", 0, ...
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"u_pi", 1, ...
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"randomkey", 7);
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methods (Test, TestTags = {'placeholder', 'todo'})
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function testNotImplemented(testCase)
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testCase.assumeFail("Tests for EML are not implemented yet.");
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testCase.verifyEqual(eml.mode, eml_mode.iq_linear);
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testCase.verifyEqual(eml.fsimu, 64e9);
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testCase.verifyEqual(eml.lambda, 1550);
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testCase.verifyEqual(eml.power, 0);
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testCase.verifyEqual(eml.linewidth, 0);
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testCase.verifyEqual(eml.alpha, 0);
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testCase.verifyEqual(eml.field, sqrt(1e-3), "AbsTol", 1e-12);
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testCase.verifyEqual(eml.noisefactor, 0, "AbsTol", 1e-12);
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testCase.verifyEqual(eml.phase, 0, "AbsTol", 1e-12);
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end
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function process_ProducesDeterministicIqLinearOutput(testCase)
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eml = EML( ...
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"mode", eml_mode.iq_linear, ...
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"fsimu", 32e9, ...
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"lambda", 1310, ...
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"power", 3, ...
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"linewidth", 0, ...
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"alpha", 0, ...
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"ampl_imbal", 0, ...
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"pha_imbal", 0, ...
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"bias", 0, ...
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"u_pi", 2, ...
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"randomkey", 11);
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inputSig = makeElectricalsignal([1 + 1i; -2 + 0.5i; 0.25 - 0.75i], 32e9);
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[optField, emlOut] = eml.process_(inputSig.signal);
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expectedField = eml.field .* inputSig.signal ./ eml.u_pi;
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testCase.verifyEqual(optField, expectedField, "AbsTol", 1e-12);
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testCase.verifyEqual(emlOut.signal_len, length(inputSig));
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testCase.verifyEqual(emlOut.phase, 0, "AbsTol", 1e-12);
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end
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function processReturnsOpticalsignalWithUpdatedMetadata(testCase)
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eml = EML( ...
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"mode", eml_mode.iq_linear, ...
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"fsimu", 64e9, ...
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"lambda", 1550, ...
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"power", 0, ...
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"linewidth", 0, ...
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"alpha", 0, ...
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"ampl_imbal", 0, ...
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"pha_imbal", 0, ...
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"bias", 0, ...
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"u_pi", 1, ...
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"randomkey", 19);
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inputSig = makeElectricalsignal([1 + 1i; -1 - 1i], 64e9);
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[outputSig, emlOut] = eml.process(inputSig);
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expectedField = eml.field .* inputSig.signal ./ eml.u_pi;
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testCase.verifyClass(outputSig, 'Opticalsignal');
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testCase.verifyEqual(outputSig.signal, expectedField, "AbsTol", 1e-12);
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testCase.verifyEqual(outputSig.fs, eml.fsimu);
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testCase.verifyEqual(outputSig.lambda, eml.lambda * 1e-9, "AbsTol", 1e-15);
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testCase.verifyEqual(height(outputSig.logbook), height(inputSig.logbook) + 1);
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testCase.verifyTrue(contains(string(outputSig.logbook.Description(end)), "nm Laser"));
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testCase.verifyEqual(emlOut.signal_len, length(inputSig));
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end
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end
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end
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function sig = makeElectricalsignal(values, fs)
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sig = Electricalsignal(values, ...
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"fs", fs, ...
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"logbook", emptyLogbook());
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end
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function lb = emptyLogbook()
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SignalType = [];
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TimeStamp = [];
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Length = [];
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SignalPower = [];
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Nase = [];
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SignalCopy = [];
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ModifierName = [];
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ModifierCopy = {};
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Description = [];
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lb = table(SignalType, TimeStamp, Length, SignalPower, Nase, SignalCopy, ModifierName, ModifierCopy, Description);
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end
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@@ -1,10 +1,96 @@
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classdef Optical_Demultiplex_test < IMDDTestCase
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% Auto-generated placeholder for Optical_Demultiplex.
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% Target: C:/Users/Silas/Documents/MATLAB/imdd_simulation/Classes/02_optical/Optical_Demultiplex.m
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methods (Test, TestTags = {'unit', 'fast', 'optical', 'demux'})
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function processReturnsOneCellPerChannelAndPreservesMetadata(testCase)
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fs = 32e9;
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lambdaCenterNm = 1310;
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lambdaA = 1309e-9;
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lambdaB = 1311e-9;
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methods (Test, TestTags = {'placeholder', 'todo'})
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function testNotImplemented(testCase)
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testCase.assumeFail("Tests for Optical_Demultiplex are not implemented yet.");
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sigA = makeOpticalSignal( ...
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[1 2; 1 2; 1 2; 1 2], ...
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fs, ...
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lambdaA, ...
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0.10);
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sigB = makeOpticalSignal( ...
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[3 4; 3 4; 3 4; 3 4], ...
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fs, ...
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lambdaB, ...
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0.90);
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mux = Optical_Multiplex( ...
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"fs_in", fs, ...
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"fs_out", fs, ...
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"lambda_center", lambdaCenterNm, ...
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"delta_f", 0, ...
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"random_key", 0, ...
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"attenuation", 0, ...
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"filtype", 3, ...
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"B", 200e9);
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muxOut = mux.process({sigA, sigB});
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demux = Optical_Demultiplex( ...
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"fs_in", muxOut.fs, ...
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"fs_out", muxOut.fs, ...
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"lambda_center", lambdaCenterNm, ...
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"attenuation", 0, ...
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"filtype", 3, ...
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"B", 200e9);
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out = demux.process(muxOut);
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testCase.verifyClass(out, 'cell');
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testCase.verifyNumElements(out, 2);
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testCase.verifyClass(out{1}, 'Opticalsignal');
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testCase.verifyClass(out{2}, 'Opticalsignal');
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testCase.verifyEqual(size(out{1}.signal), size(muxOut.signal));
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testCase.verifyEqual(size(out{2}.signal), size(muxOut.signal));
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testCase.verifyEqual(out{1}.fs, fs);
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testCase.verifyEqual(out{2}.fs, fs);
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testCase.verifyEqual(out{1}.lambda, muxOut.lambda(1), 'AbsTol', 1e-12);
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testCase.verifyEqual(out{2}.lambda, muxOut.lambda(2), 'AbsTol', 1e-12);
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end
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function roundTripThroughMuxAndDemuxPreservesChannelMagnitudes(testCase)
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fs = 16e9;
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lambdaCenterNm = 1310;
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sigA = makeOpticalSignal(ones(8, 2), fs, 1309.5e-9, 0.0);
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mux = Optical_Multiplex( ...
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"fs_in", fs, ...
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"fs_out", fs, ...
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"lambda_center", lambdaCenterNm, ...
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"delta_f", 0, ...
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"random_key", 0, ...
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"attenuation", 0, ...
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"filtype", 3, ...
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"B", 200e9);
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muxOut = mux.process({sigA});
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demux = Optical_Demultiplex( ...
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"fs_in", muxOut.fs, ...
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"fs_out", muxOut.fs, ...
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"lambda_center", lambdaCenterNm, ...
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"attenuation", 0, ...
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"filtype", 3, ...
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"B", 200e9);
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out = demux.process(muxOut);
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testCase.verifyNumElements(out, 1);
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testCase.verifyEqual(size(out{1}.signal), size(sigA.signal));
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testCase.verifyEqual(out{1}.fs, fs);
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testCase.verifyEqual(out{1}.lambda, muxOut.lambda(1), 'AbsTol', 1e-12);
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testCase.verifyEqual(mean(abs(out{1}.signal), 'all'), mean(abs(sigA.signal), 'all'), 'AbsTol', 1e-6);
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end
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end
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end
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function sig = makeOpticalSignal(signal, fs, lambda, polrot)
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base = Signal(signal, "fs", fs);
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sig = Opticalsignal( ...
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signal, ...
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"fs", fs, ...
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"logbook", base.logbook, ...
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"lambda", lambda, ...
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"nase", 0, ...
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"polrot", polrot);
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end
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@@ -1,10 +1,101 @@
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classdef Optical_Multiplex_test < IMDDTestCase
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% Auto-generated placeholder for Optical_Multiplex.
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% Target: C:/Users/Silas/Documents/MATLAB/imdd_simulation/Classes/02_optical/Optical_Multiplex.m
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methods (Test, TestTags = {'unit', 'fast', 'optical', 'mux'})
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function processCombinesChannelsAndPreservesMetadata(testCase)
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fs = 32e9;
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lambdaCenter = 1550;
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lambdaA = 1550e-9;
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lambdaB = 1550e-9;
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methods (Test, TestTags = {'placeholder', 'todo'})
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function testNotImplemented(testCase)
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testCase.assumeFail("Tests for Optical_Multiplex are not implemented yet.");
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sigA = makeOpticalSignal( ...
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[1 2; 1 2; 1 2], ...
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fs, ...
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lambdaA, ...
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0.10);
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sigB = makeOpticalSignal( ...
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[3 4; 3 4; 3 4], ...
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fs, ...
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lambdaB, ...
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0.90);
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mux = Optical_Multiplex( ...
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"fs_in", fs, ...
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"fs_out", fs, ...
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"lambda_center", lambdaCenter, ...
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"delta_f", 0, ...
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"random_key", 0, ...
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"attenuation", 0, ...
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"filtype", 3);
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out = mux.process({sigA, sigB});
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expected = combineSingleChannelMuxOutputs({sigA, sigB}, mux);
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testCase.verifyClass(out, 'Opticalsignal');
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testCase.verifyEqual(size(out.signal), [3 2]);
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testCase.verifyEqual(out.signal, expected, 'AbsTol', 1e-12);
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testCase.verifyEqual(out.fs, fs);
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testCase.verifyEqual(out.lambda, [lambdaA, lambdaB], 'AbsTol', 1e-9);
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testCase.verifyEqual(out.polrot, [0.10, 0.90], 'AbsTol', 1e-12);
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testCase.verifyEqual(height(out.logbook), 2);
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testCase.verifyEqual(string(out.logbook.Description(end)), "Opt. Mux. ");
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end
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function processSupportsMoreThanOneInputChannel(testCase)
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fs = 16e9;
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lambdaCenter = 1310;
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sig1 = makeOpticalSignal(ones(4, 2), fs, lambdaCenter * 1e-9, 0.0);
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sig2 = makeOpticalSignal(2 * ones(4, 2), fs, lambdaCenter * 1e-9, 0.5);
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sig3 = makeOpticalSignal(3 * ones(4, 2), fs, lambdaCenter * 1e-9, 1.0);
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mux = Optical_Multiplex( ...
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"fs_in", fs, ...
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"fs_out", fs, ...
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"lambda_center", lambdaCenter, ...
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"delta_f", 0, ...
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"random_key", 0, ...
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"attenuation", 0, ...
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"filtype", 3);
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out = mux.process({sig1, sig2, sig3});
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expected = combineSingleChannelMuxOutputs({sig1, sig2, sig3}, mux);
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testCase.verifySize(out.signal, [4, 2]);
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testCase.verifyEqual(out.signal, expected, 'AbsTol', 1e-12);
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testCase.verifyEqual(numel(out.lambda), 3);
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testCase.verifyEqual(numel(out.polrot), 3);
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end
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end
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end
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function sig = makeOpticalSignal(signal, fs, lambda, polrot)
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base = Signal(signal, "fs", fs);
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sig = Opticalsignal( ...
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signal, ...
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"fs", fs, ...
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"logbook", base.logbook, ...
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"lambda", lambda, ...
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"nase", 0, ...
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"polrot", polrot);
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end
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function expected = combineSingleChannelMuxOutputs(signals, muxPrototype)
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expected = [];
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for idx = 1:numel(signals)
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mux = Optical_Multiplex( ...
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"fs_in", muxPrototype.fs_in, ...
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"fs_out", muxPrototype.fs_out, ...
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"lambda_center", muxPrototype.lambda_center, ...
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"delta_f", muxPrototype.delta_f, ...
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"random_key", muxPrototype.random_key, ...
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"attenuation", muxPrototype.attenuation, ...
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"filtype", muxPrototype.filtype);
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singleOut = mux.process({signals{idx}});
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if isempty(expected)
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expected = zeros(size(singleOut.signal));
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end
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expected = expected + singleOut.signal;
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end
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end
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