EP 2721385 A1 20140423 - DEVICE AND METHOD FOR CHARACTERIZING A LIGHT BEAM
Title (en)
DEVICE AND METHOD FOR CHARACTERIZING A LIGHT BEAM
Title (de)
VORRICHTUNG UND VERFAHREN ZUR CHARAKTERISIERUNG EINES LICHTSTRAHLS
Title (fr)
DISPOSITIF ET PROCÉDÉ DE CARACTÉRISATION D'UN FAISCEAU DE LUMIÈRE
Publication
Application
Priority
- FR 1155185 A 20110614
- IB 2012052910 W 20120608
Abstract (en)
[origin: WO2012172463A1] Method of characterizing a light beam (FL) comprising the steps consisting in: a) disposing the input ends (EE1 - EE11) of N > 3 optical fibres (F01 - F011) on the path of said light beam, in such a way that a respective portion of said beam is coupled and propagates in each optical fibre and is emitted from its output end (ES1 - ES11) so as to form a respective secondary beam; b) introducing an angular spectral dispersion into said secondary beams by means of at least one dispersive element (RD); c) propagating the dispersed secondary beams in such a way that they overlap to form an interferogram; d) acquiring an image of said interferogram; and e) extracting from said image of said interferogram an item of information relating to the spatial variation of the phase of said light beam at a plurality of wavelengths. Device for the implementation of such a method.
IPC 8 full level
G01J 11/00 (2006.01)
CPC (source: EP US)
G01J 3/45 (2013.01 - US); G01J 9/02 (2013.01 - EP US); G01J 11/00 (2013.01 - EP US); G01J 2009/0238 (2013.01 - EP US)
Citation (search report)
See references of WO 2012172463A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012172463 A1 20121220; EP 2721385 A1 20140423; FR 2976663 A1 20121221; FR 2976663 B1 20130719; US 2014098367 A1 20140410; US 9243957 B2 20160126
DOCDB simple family (application)
IB 2012052910 W 20120608; EP 12731176 A 20120608; FR 1155185 A 20110614; US 201214124781 A 20120608