PD-LD is now Necsel Communication & Instrumentation Systems. a manufacturer of customized laser products, headquartered in Pennington, New Jersey, USA since 1993. NCIS leverages top-notch technical and manufacturing capabilities to create active and passive (VBG®) laser products that are high-quality, cost-effective, tailored to customers’ needs and delivered in a timely fashion. Furthermore, NCIS continues to innovate on its patented volume Bragg grating (VBG®) technology, for which the company has been awarded over 30 patents since 2003.