0000950123-09-032860 10-Q 4 20090630 20090810 20090810 IPG PHOTONICS CORP 0001111928 3674 043444218 DE 10-Q 34 001-33155 09999837 50 OLD WEBSTER ROAD OXFORD MA 01540 5083731100 50 OLD WEBSTER ROAD OXFORD MA 01540 10-Q 1 b76208e10vq.htm IPG PHOTONICS CORPORATION EX-31.1 2 b76208exv31w1.htm EX-31.1 CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13A-14(A) EX-31.2 3 b76208exv31w2.htm EX-31.2 CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13A-14(A) EX-32 4 b76208exv32.htm EX-32 CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 1350