0000950123-09-060194 S-3 4 20091109 20091109 IPG PHOTONICS CORP 0001111928 3674 043444218 DE S-3 33 333-162996 091168807 50 OLD WEBSTER ROAD OXFORD MA 01540 5083731100 50 OLD WEBSTER ROAD OXFORD MA 01540 S-3 1 b77964sv3.htm IPG PHOTONICS CORP. EX-12.1 2 b77964exv12w1.htm EX-12.1 STATEMENT RE COMPUTATION OF EARNINGS TO FIXED CHARGES EX-23.1 3 b77964exv23w1.htm EX-23.1 CONSENT OF DELOITTE & TOUCHE LLP GRAPHIC 4 b77964ipgphoto.gif GRAPHIC