Joseph Grau Davis

Title: Joseph Grau Davis: Innovator in Optical Technologies

Introduction

Joseph Grau Davis is a notable inventor based in Lafayette, CA (US). He has made significant contributions to the field of optical technologies, holding a total of 2 patents. His work focuses on enhancing measurement accuracy and reducing costs in optical systems.

Latest Patents

Davis's latest patents include a "Demodulator and method for interferometric outputs of increased accuracy." This invention presents an apparatus and method that provides wide dynamic range balanced measurements of the input phase to an interferometer. It utilizes a phase generated carrier, especially useful for time multiplexing to demodulate a series of interferometers with high accuracy. The system features a modulation drive output maintained at optimum amplitude by an internal feedback loop, resulting in a highly stable and time-balanced system. This can be fabricated from an analog to digital converter, a digital signal processor, and a digital to analog converter, making low-cost open loop demodulators a reality.

Another significant patent is the "Birefringence insensitive optical coherence domain reflectometry system." This system incorporates non-polarization maintaining (non-PM) fiber in both the sample arm and the reference arm, avoiding signal degradation caused by birefringence. The use of non-PM fiber significantly reduces the cost of the optical coherence domain reflectometry (OCDR) system and allows for a disposable or multiplexed section of the sample arm. The system is designed to achieve high-resolution imaging, making it useful in medical applications or for non-medical in situ probes.

Career Highlights

Throughout his career, Joseph Grau Davis has worked with esteemed organizations such as the University of California and Optiphase, Inc. His experience in these institutions has contributed to his expertise in optical technologies and innovations.

Collaborations

Davis has collaborated with notable individuals in his field, including Matthew J Everett and Allen Curtis Cekorich. These collaborations have likely enriched his work and expanded the impact of his inventions.

Conclusion

Joseph Grau Davis is a distinguished inventor whose work in optical technologies has led to significant advancements in measurement accuracy and cost reduction. His contributions continue to influence the field and pave the way for future innovations.