%% 
%%  A DANTE-Edition example
%% 
%%  Example 33-03-28 on page 700.
%% 
%%  Copyright (C) 2011 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
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{375.57637pt}
\setlength\parindent{0pt}

\usepackage{pst-circ,pst-optexp,pst-func}

\begin{document}
\begin{pspicture}(6.4,3.2)
\addtopsstyle{Fiber}{linecolor=red}
\pnode(2.3,2.3){Lin}
\pnode([Xnodesep=0.5]Lin){Lout}
\pnode([Xnodesep=1.5]Lout){EAMout}
\pnode([Xnodesep=1.5]EAMout){Det}
\optbox[fiber,labeloffset=-0.2,endbox,compname=L,extnode=b](Lout)(Lin){%
    \psGauss[yunit=0.03,sigma=0.03]{-0.5}{0.5}}
\optbox[fiber,labeloffset=0,optboxwidth=1,compname=EAM,extnode=b](Lout)(EAMout){EAM}
\optfiber[labeloffset=0.3](EAMout)(Det){fibre}
\optdetector(EAMout)(Det){OSA}
\pnode([Xnodesep=-1,offset=-1]LExtNode){Osc}
\pnode(LExtNode|Osc){PSin}
\pnode(EAMExtNode|Osc){PSout}
\oscillator[output=right](Osc){10\,GHz}{}
\phaseshifter[labeloffset=-0.7](PSin)(PSout){$\tau$}
\wire(LExtNode)(PSin)
\wire(EAMExtNode)(PSout)
\end{pspicture}
\end{document}