(19)
(11) EP 2 883 289 A1

(12)

(43) Date of publication:
17.06.2015 Bulletin 2015/25

(21) Application number: 13827080.6

(22) Date of filing: 07.08.2013
(51) International Patent Classification (IPC): 
H01S 3/067(2006.01)
(86) International application number:
PCT/US2013/053983
(87) International publication number:
WO 2014/025906 (13.02.2014 Gazette 2014/07)
(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
Designated Extension States:
BA ME

(30) Priority: 07.08.2012 US 201261680526 P
17.10.2012 US 201261714962 P

(71) Applicant: IPG Photonics Corporation
Oxford, Massachusetts 01540 (US)

(72) Inventors:
  • YUSIM, Alex
    Oxford, MA 01540 (US)
  • YAGODKIN, Roman
    Oxford, MA 01540 (US)

(74) Representative: Kobiako von Gamm, Iouri 
Bettinger Scheffelt Kobiako von Gamm Rechtsanwälte Patentanwälte Partnergesellschaft mbB Bavariaring 14
80336 München
80336 München (DE)

   


(54) HIGH POWER ULTRA-COMPACT, LIGHTWEIGHT MULTI-KILOWATT FIBER LASER SYSTEM BASED ON COHERENT&SPECTRAL BEAM COMBINING