Sunnyvale, CA, United States of America

Charles E Barker

This inventor holds 1 USPTO granted patent. Top assignee: The United States of America as Represented by the United States. Active years: 1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Charles E Barker. Retrieved from https://idiyas.com/inventor/charles-e-barker-kkehk2va

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1993

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1 patent (USPTO):Explore Patents

Title: Charles E Barker: Innovator in Optical Harmonic Conversion

Introduction

Charles E Barker is a notable inventor based in Sunnyvale, CA (US). He has made significant contributions to the field of optical technology, particularly in the area of harmonic frequency conversion. His innovative work has led to the development of a unique crystal that enhances the efficiency of laser light applications.

Latest Patents

Barker holds a patent for a "Temperature-insensitive phase-matched optical harmonic conversion crystal." This invention allows for temperature-insensitive, phase-matched harmonic frequency conversion of laser light at a preferred wavelength of 1.064 microns. The crystal, made from deuterated l-arginine phosphate, is specifically cut and oriented to ensure that laser light propagates along the required directions, corresponding to a temperature-insensitive, phase-matching locus. The methodology for measuring and calculating these angles can be adapted for other wavelengths and crystal compositions, showcasing the versatility of his invention.

Career Highlights

Barker's career is marked by his dedication to advancing optical technologies. His work has not only contributed to scientific knowledge but has also paved the way for practical applications in various industries. His innovative spirit and technical expertise have made him a respected figure in the field.

Collaborations

Throughout his career, Barker has collaborated with esteemed colleagues such as David Eimerl and Stephan P Velsko. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and enhances the quality of research and development in optical technologies.

Conclusion

Charles E Barker's contributions to the field of optical harmonic conversion exemplify the impact of innovation in technology. His patent and collaborative efforts highlight the importance of research and development in advancing scientific understanding and practical applications.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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