(19)

(11)

EP 2 792 034 A1

(12)

(43) Date of publication: 22.10.2014 Bulletin 2014/43 (21) Application number: 12810412.2 (22) Date of filing: 12.12.2012

(51) International Patent Classification (IPC):  H01S 3/113(2006.01) H01S 3/0941(2006.01) H01S 3/131(2006.01) H01S 3/13(2006.01) (86) International application number: PCT/GB2012/053103 (87) International publication number: WO 2013/088139 (20.06.2013 Gazette 2013/25)

(84) Designated Contracting States: 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 (30) Priority: 12.12.2011 GB 201121379 (71) Applicant: Thales Holdings UK Plc Addlestone Surrey KT15 2NX (GB)	(72) Inventors: COOK, Trevor Glasgow G51 4BZ (GB) LEE, Stephen Glasgow G51 4BZ (GB) ALEXANDER, William Glasgow G51 4BZ (GB) (74) Representative: Round, Edward Mark  Marks & Clerk LLP 90 Long Acre London WC2E 9RA London WC2E 9RA (GB)