December 19--IMRA America Inc. has served suit against IPG Photonics Corp. to stop misuse of IMRA intellectual property following their refusal to enter into a serious license negotiation. IPG Photonics recently terminated license negotiations after months of discussion. IMRA intellectual property is the key technology for obtaining high power and high pulse energy from state-of-the-art fiber lasers. IMRA has licensed this technology to other leading fiber laser and component manufacturers, including Nufern, SPI Lasers, and Aculight Corp. For the past 14 years IMRA has been a leader in ultrafast and high peak power fiber laser industrial research and development. IMRA has more than 40 patents in this area compared to only one held by IPG Photonics.