Patent Protects 'Dicing' Technology for RGB Lasers
Dec 5, 2007 — PD-LD Inc. of Pennington, N.J., announced that the US Patent and Trademark Office recently granted it a patent pertaining to its volume Bragg grating (VBG) technology, used in applications including Raman spectroscopy, high-power lasers and displays. Patent No. 7,125,632 protects a method of mass-producing VBG elements based on separating (or “dicing”) a VBG wafer into smaller identical elements with the same properties as the starting wafer. The technology will be used primarily in RGB (red,...