<p>The invention relates to a laser system provided with a laser radiation device (1) in which the radiation frequency is controlled by a heterodyne servo circuit particularly using an interferometric circuit (15). Said interferometric circuit comprises a coil of optical fibres (17) which provide a reference for correcting the laser radiation frequency. To obtain good results in the field of spectral purity, all the elements involved in the laser radiation are fibres and the connections thereof are provided by optical fibres. The invention can be used for lasers requiring high spectral purity.</p>
申请公布号
EP2368298(A1)
申请公布日期
2011.09.28
申请号
EP20090763967
申请日期
2009.12.03
申请人
OBSERVATOIRE DE PARIS;CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE;UNIVERSITE PIERRE ET MARIE CURIE - PARIS 6