function linewidth_curve(wh,options)
    arguments
        wh
        options.DisplayName = '';
    end
    
    M           = wh.parameter.M.values(1);
    datarate    = wh.parameter.datarate.values(1);
    sir         = wh.parameter.sir.values(6);
    mpi_len     = wh.parameter.mpi_pathlen.values;
    laser_linewidth = wh.parameter.laser_linewidth.values;
    pn_key      = wh.parameter.pn_key.values;
    vbias_rel   = wh.parameter.vbias_rel.values(1);
    rop         = wh.parameter.rop.values(1);
    clipfactor  = wh.parameter.clipfactor.values(1);
    rrcalpha    = wh.parameter.rrcalpha.values(1);
    
    cols = linspecer(numel(mpi_len));
    % Create the initial plot
    figure(44);
    hold on; % Retain the plot so new points can be added without complete redraw
    for l = 1:numel(mpi_len)
    
        cnt = 0;
        for  i = 1:numel(laser_linewidth)
    
            bers(:,i)        = wh.getStoValue('ber',M,datarate,sir,mpi_len(l),laser_linewidth(i),pn_key,vbias_rel,rop,clipfactor, rrcalpha);
            %ers(:,i)         = unique(wh.getStoValue('er',M,datarate,sir,mpi_len,laser_linewidth(i),pn_key,vbias_rel,rop,clipfactor, rrcalpha));
    
            dn = ['Interference Path Length: ',num2str(mpi_len(l)),'m; Rate: ',num2str(datarate)];
    
        end

        scatter(laser_linewidth.*1e-6,bers,"LineWidth",1,"Marker",".","DisplayName",string(dn),"MarkerEdgeColor",cols(l,:),'HandleVisibility','off');
        plot(laser_linewidth.*1e-6,mean(bers),"LineWidth",1,"Marker",".","DisplayName",string(dn),"MarkerEdgeColor",cols(l,:),"Color",cols(l,:));

    end
    ylim([1e-4, 1e-2]);
    yline(3.8e-3,'DisplayName','HD-FEC');
    xlabel('Laser Linewidth in MHz');
    ylabel('Bit Error Rate (BER)');
    title(['Bit Error Rate vs. Interference Path Length @ SIR ',num2str(sir), 'dB']);
    set(gca,'yscale','log');
    grid on;
    legend

end