%%
%%  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}