Harold W Carter

Title: Harold W. Carter: Innovator in Optical Clock Distribution Networks

Introduction

Harold W. Carter is a notable inventor based in Maineville, Ohio. He has made significant contributions to the field of optical technologies, particularly in the design of clock distribution networks for multichip modules. His innovative work has implications for high-speed signal transmission in distributed computer systems.

Latest Patents

Carter holds a patent for an "Optical synchronous clock distribution network and high-speed signal." This invention features an optical waveguide H-tree design that enables global clock distribution on multichip modules with nearly zero clock skew. The design is particularly useful in distributed computer system environments. It employs channel waveguides, curved sections, and directional couplers made from silica glass and silicon oxynitride (SiON) technologies. The hybrid combination of SiON and silica glass offers the advantages of both materials. The clock speed achievable is limited by the laser diode source and photodiode receiver at each chip module, rather than the optical waveguide distribution network itself.

Career Highlights

Carter is affiliated with the University of Cincinnati, where he continues to advance research in optical technologies. His work has paved the way for high-speed optical waveguides that can transmit clock signals or serve as multi-wavelength communication networks. This is accomplished through the use of multiple laser diodes with different output wavelengths, which are directed into an optical multiplexer. At the receiving points on the integrated circuits, optical demultiplexers filter the optical signals into individual output signals.

Collaborations

Carter has collaborated with notable colleagues such as Seungug Koh and Joseph T. Boyd. Their combined expertise has contributed to the advancement of optical technologies in the field of computer systems.

Conclusion

Harold W. Carter's innovative work in optical synchronous clock distribution networks exemplifies the potential of optical technologies in enhancing high-speed communication in multichip modules. His contributions continue to influence the development of efficient and effective solutions in the realm of distributed computing.