BILLERICA, Mass., April 21 -- GSI Lumonics Inc. announced it has entered into a definitive agreement to buy the principal assets of Spectron Laser Systems, a subsidiary of Lumenis Ltd., of Rugby, England. GSI Lumonics said it will pay $6.3 million in cash for the product lines being acquired from Spectron, subject to adjustment and the assumption of certain liabilities. Closing is expected in May, and the integration of Spectron into GSI Lumonics' Laser Group in Rugby is expected to be completed by the end of August. GSI Lumonics said the acquisition adds both diode-pumped laser solid state (DPSS) technology and products to the its offerings, as well as expanded product lines in lamp-pumped (LPSS) and CO2-based technologies. Spectron's lasers are primarily used in material processing applications such as marking, cutting plastic and diamonds, silicon machining and micro welding. They will complement GSI Lumonics' product lines by expanding applications in the 7 W to 100 W range, the company said. Charles Winston, GSI Lumonics' president and CEO, said, "This acquisition is consistent with the company's strategy of expanding the product lines and technology in its laser and precision motion components business groups." GSI Lumonics supplies precision motion control components, lasers and laser-based advanced manufacturing systems to the medical, semiconductor, electronics and industrial markets.