%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 8-6-8 on page 582.
%% 
%%  Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss 
%% 
%%  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.
%% 

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{348.0pt}
\StartShownPreambleCommands
\usepackage[basic,optics]{circ}
\StopShownPreambleCommands
\begin{document}
\begin{circuit}{0}
  \nl\Laser1 {} r                    % laser
  \oa 2 r                            % optical axis
  \Polar1 {} r                       % polarizer
  \oa 2 r
  \nl\OM1 P1 {} {} {} {} h           % optical modulator
  \atpin OM1P3
  \oa 4 r
  \cc\BLens1 {} r                    % first lens
  \oa 2 r
  \nl\Pinhole1 {} r                  % pinhole
  \oa 7 r
  \cc\SLens2 {} r                    % second lens
  \oa 1 r
  \Polar2 {} r                       % analyzer
  \oa 3 r
  \oa 3 r
  \nl\BSplit1 {} + d                 % beam splitter
  \atpin BSplit1+                    % continue drawing right
  \oa 2 r
  \nl\Cam1 {camera} . r              % camera
  \atpin BLens1: \shift 0 2 \P3      % mark middle of first lens
  \atpin Pinhole1: \shift 0 2 \P4    % mark middle of pinhole
  \atpin SLens2: \shift 0 2 \P5      % mark middle of second lens
  \Dtext{\small $f_1$} from P3 to P4 % f_1
  \Dtext{\small $f_2$} from P4 to P5 % f_2
  \atpin BSplit1.                    % second part of beam down
  \oa 5 d
  \Mirror1 {} * R                    % mirror
  \oa 2 r
  \nl\ScrL1 {screen} h               % white screen
\end{circuit}
\end{document}