\documentclass{beamer}
\usetheme{poul} 
\usepackage[utf8]{inputenc}
\usepackage[svgpath=images/]{svg}

%Information to be included in the title page:
\title{Backup and (possibly) Restore}
\author{Andrea Gussoni}
\institute{P.O.u.L.}
\date{23 Marzo 2017}
\titlegraphic{\includesvg[height=1.5cm]{logowhite}}
 
 
\begin{document}
 
\frame{\titlepage}
 
\begin{frame}
\frametitle{Sample frame title}
This is a text in first frame. This is a text in first frame. This is a text in first frame.
\end{frame}

\end{document}