Company Filing History:
Years Active: 2006
Title: Josef Shappir: Innovator in Silicon Waveguide Technology
Introduction
Josef Shappir is a notable inventor based in Mevaseret-Zion, Israel. He has made significant contributions to the field of optical technology, particularly through his innovative work on silicon waveguides. His expertise and inventions have the potential to advance various applications in telecommunications and photonics.
Latest Patents
Josef Shappir holds a patent for a "Silicon light waveguide with MOS capacitors positioned on the waveguide." This invention provides a silicon waveguide with a silicon oxide cladding on a silicon substrate. At predetermined positions along the length of the waveguide, metal oxide semiconductor (MOS) structures are created. A poly-silicon or any other conductive layer is deposited and patterned above the upper cladding, with electrical contacts made to the substrate, the silicon waveguide, and the poly-silicon layer. The application of a potential difference between at least two of the layers changes the free carrier concentration at the top and/or bottom layer of the silicon waveguide due to the electric field. This change in the electric field results in a change in the index of refraction, which in turn affects the optical mode propagating in the waveguide. The propagation can be controlled by managing the changes in the electric field, enhanced by localized changes in the optical properties of the waveguide induced by ion implantation or trapping of photo-carriers.
Career Highlights
Josef Shappir is associated with Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. His work has been instrumental in bridging the gap between theoretical research and practical applications in the field of silicon photonics.
Collaborations
Some of his notable coworkers include Amir Sa'ar and Nissim Ben-Yosef. Their collaborative efforts have contributed to the advancement of research and development in optical technologies.
Conclusion
Josef Shappir's innovative work in silicon waveguide technology exemplifies the potential of modern inventions to transform the field of optics. His contributions continue to inspire advancements in telecommunications and photonics.