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PD-LD Awarded Laser Locking Patent

Friday, January 11, 2008

New VBG® technology improves laser diode performance

Pennington, NJ -- The U.S. Patent and Trademark Office recently granted PD-LD, Inc, the worldwide leader in Volume Bragg Grating® (VBG®) technology, an additional patent bolstering the firm's diverse portfolio of exclusive VBG® products and services.

Patent No. 7,298,771, awarded on Nov. 20, 2007, protects a highly practical and low cost technology for controlling the emission spectra of laser diodes, diode bars and stacks. Specifically, the PD-LD breakthrough utilizes VBG® technology to lock the wavelength of laser diodes and control the spectral width of laser emission.

"This technology greatly improves the performance of laser diodes in a very practical and cost effective manner" said Dr. Vladimir Ban, PD-LD's President and CEO. "It is a highly attractive option for applications such as pumping of solid state and fiber lasers, and other settings where strict wavelength control is necessary. Other applications include Raman spectroscopy and sensors. Furthermore, this is the enabling technology for effective manufacturing of RGB lasers utilized in laser TV and other laser based display applications."

"This is the fifth patent awarded to PD-LD, Inc. in the past 6 months. PD-LD's position in a number of important markets is strengthened by this award and we are now serving numerous customers, ranging from high-power laser pumping applications, Raman spectroscopy to consumer focused RGB laser displays. Our customers appreciate the diversity of our VBG® technology," said Neal Stoker, PD-LD's Director of Marketing.

For more information about the patent, and PD-LD's products and services visit the company's website,

About PD-LD

PD-LD, Inc., a photonic packaging company, headquartered in Pennington, N.J. is a U.S. manufacturer and assembler of pigtailed and 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 fastest 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

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