US Patent Issued to IPG Photonics on Aug. 26 for "Methods and systems for coherent imaging and feedback control for modification of materials using dynamic optical path switch in the reference arms" (Canadian Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,368, issued on Aug. 26, was assigned to IPG Photonics Corp. (Marlborough, Mass.).

"Methods and systems for coherent imaging and feedback control for modification of materials using dynamic optical path switch in the reference arms" was invented by Paul J. L. Webster (Kingston, Canada), James M. Fraser (Kingston, Canada) and Victor X. D. Yang (Toronto).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser or welding applications. An imaging optical source that produces imaging light. A feedback controller controls at leas...