Volume Bragg Grating Technologies Earn Two New U.S. Patents

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Continuing breakthroughs demonstrate PD-LD, Inc.'s industry leadership in laser-based RGB display technology.

PD-LD, Inc., the worldwide leader in Volume Bragg Grating® (VBG®) technology, today announced that the U.S. Patent and Trademark Office has awarded it exclusive rights for additional technological advancements.

The recent patents (No.'s 7,248,617 and 7,248,618) further strengthen PD-LD's leadership position in various applications of VBG technology, including Raman Spectroscopy, High Power Lasers, and laser-based Red, Green, Blue (RGB) display technology. The technology is widely utilized in diverse fields such as chemical and medical research, aerospace, telecommunications and pharmaceuticals.

"VBG technology, which received Photonics' Circle of Excellence Award in 2004, is becoming the gold standard for the optical lenses used in laser development and we are committed to investing significant resources in the development of even lower cost VBG elements to benefit the industry," said Vladimir Ban, CEO of PD-LD. "We are pleased to have secured these patents and will continue working with our engineers and physicists to provide the very best in quality, performance and price as the laser-based display industry continues growing."

Patent No. 7,248,618, issued July 24, 2007, protects PD-LD with regard to second harmonic generation using VBG elements. The designation ensures the Pennington, N.J. -based firm will continue to offer customers cutting-edge technologies unavailable anywhere else. Specifically the patent protects intra-cavity frequency doubling utilizing a diode laser, a quasi-phase-matched non-linear crystal and a Bragg grating as the output coupler. This is the architecture of most laser-based RGB display systems.

"PD-LD's continuing breakthroughs demonstrate our strong commitment to research and develop applications and manufacturing methods that consistently raise the bar," commented Neal Stoker, Director of Marketing at PD-LD. "We expect to announce more patent awards in the near future, once again rewarding our customers with the very latest in technological innovation."

Copies of the new and additional patents can be found on the PD-LD website, pdld.com.

About PD-LD
PD-LD, Inc., a photonic packaging company, headquartered in Pennington, N.J. is a U.S. manufacturer and assembler of pigtailed or receptacle mounted fiber coupled laser diodes, LED's, Detectors, high power pulsed lasers and bi-directional devices for the optical communications, test equipment and medical industries. Named one the fasted growing technology companies in N.J., PD-LD provides custom Volume Bragg Grating® (VBG®) elements and VBG stabilized lasers for a variety of applications including Raman Spectroscopy, High Power Lasers and Displays. For more information, visit http://www.pdld.com.

Neal Stoker
PD-LD Director of marketing


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