%% 
%%  Ein Beispiel der DANTE-Edition
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%%  7. Auflage
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%%  Beispiel 32-03-39 auf Seite 745.
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%%  Copyright (C) 2016 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-optexp}
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}(13,5.5)
\psset{optboxwidth=1, labelstyle=\footnotesize, fiber=none}
\pnodes(1,5){LD}([Xnodesep=5.5]LD){CPLin1}([offset=-2]CPLin1){CPLin2}
\pnodes([Xnodesep=2.5]CPLin1){CPLout1}([Xnodesep=2.5]CPLin2){CPLout2}
\pnode([Xnodesep=3]CPLout1){RX}
\optbox[position=start, label=0](LD)(CPLin1){LD}
\optmzm[abspos=0.8](LD)(CPLin1){MZM}
\optamp[abspos=2](LD)(CPLin1){EDFA}
\optfilter[abspos=3](LD)(CPLin1){BPF}
\optswitch[abspos=4](LD)(CPLin1){SW}
\polcontrol[abspos=5, fiber=out](LD)(CPLin1)
\drawfiber{1-6}
\optcoupler[couplertype=none, fiber](CPLin1)(CPLin2)(CPLout1)(CPLout2)
\optamp[abspos=0.8, fiber=in](CPLout1)(RX){EDFA}
\optfilter[abspos=2](CPLout1)(RX){BPF}
\optbox[position=end](CPLout1)(RX){RX}
\drawfiber{8-10}
\pnodes([Xnodesep=-0.5]LD|CPLin2){TL}(RX|TL){TR}([offset=-2.5]TR){BR}(TL|BR){BL}
\optamp[fiber=i](CPLout2)(TR){EDFA}
\optfiber[label=0.3 . t, position=0.85](BL)(BR){SSMF 89.8~km}
\drawfiber[fiberstyle=angle, arm=1.2, linearc=0.5, startnode=N]{11}{12}
\optamp[position=0.3](BR)(BL){EDFA}
\optfilter[position=0.55, labelangle=180](BL)(BR){BPF}
\optfiber[fiberloops=1, label=0.3 . t, position=0.35](BL)(BR){DCF 16.2~km}
\optamp[position=0.85](BR)(BL){EDFA}
\optfilter[position=0.2](TL)(CPLin2){BPF}
\optswitch(TL)(CPLin2){SW}
\polcontrol[position=0.8, fiber=out](TL)(CPLin2)
\drawfiber{12-16}\drawfiber{17-19}
\drawfiber[fiberstyle=angle, arm=0.5, linearc=0.5, stopnode=1]{16}{17}
\end{pspicture}
\end{document}