Company Filing History:
Years Active: 1997
Title: The Innovations of Paul D. Sargis
Introduction
Paul D. Sargis is an accomplished inventor based in Modesto, CA. He has made significant contributions to the field of optical communications, particularly through his innovative patent related to subcarrier multiplexing.
Latest Patents
Sargis holds a patent for "Subcarrier multiplexing with dispersion reduction and direct detection." This invention addresses the challenges of receiver complexity and dispersion penalty in optical communication systems. The system he developed allows for simultaneous reduction of these issues without the need for expensive, high-bandwidth optical detectors. It utilizes microwave mixers and lithium niobate external modulators to produce sidebands that are closely separated from a principal laser optical carrier. Digital data streams are independently impressed upon these sidebands for transmission over ordinary single-mode fiber. The system upconverts high-speed data streams to microwave frequencies, combines them with a microwave power combiner, and amplifies them with a microwave amplifier. A solid-state 1550-nm laser carrier is modulated by the microwave subcarriers, and an erbium-doped fiber amplifier (EDFA) is employed prior to long-distance transmission. The optical signal can traverse multiple EDFAs to compensate for losses before detection.
Career Highlights
Sargis is affiliated with the University of California, where he continues to contribute to research and development in optical communication technologies. His work has been instrumental in advancing the efficiency and effectiveness of data transmission systems.
Collaborations
Throughout his career, Sargis has collaborated with notable colleagues, including Ronald E. Haigh and Kent G. McCammon. Their combined expertise has furthered the development of innovative solutions in the field.
Conclusion
Paul D. Sargis is a notable inventor whose work in subcarrier multiplexing has made a significant impact on optical communication systems. His contributions continue to influence advancements in the field, showcasing the importance of innovation in technology.