Benjamin Tell

Title: The Innovations of Benjamin Tell

Introduction

Benjamin Tell is a notable inventor based in Matawan, NJ (US), recognized for his contributions to the field of optical modulation and laser technology. With a total of six patents to his name, Tell has made significant advancements that enhance the performance of various optical devices.

Latest Patents

Among his latest patents is the "Suppressed Photocurrent, Quantum Well Optical Modulation Device." This invention achieves photocurrent suppression without negatively impacting modulation performance in a surface normal, electro-absorption, quantum well modulator. By introducing a sufficient number of non-radiative recombination centers in the quantum well region, the lifetime of photogenerated carriers is significantly shortened, effectively suppressing the photocurrent. Despite exciton broadening occurring in the quantum wells, modulation performance characteristics such as contrast ratio are maintained at acceptable levels. The modulator exemplifies a careful balance between defect density in the quantum wells and the necessary degree of exciton broadening to preserve quantum effects.

Another significant patent is the "Top-Emitting Surface Emitting Laser Structures." This invention focuses on top surface emitting, vertical cavity, surface emitting lasers that rely on emission through apertured top surface electrodes. The biasing current, peripheral to the laser, follows a path that converges within the active gain region to effectively reach the lasing threshold. This path results from a buried region of increased resistance surrounding the laser at or above the active region, produced by ion implantation-induced damage with a carefully chosen ion energy magnitude and spectrum.

Career Highlights

Throughout his career, Benjamin Tell has worked with prestigious organizations such as Bell Telephone Laboratories and AT&T Bell Laboratories. His work in these institutions has contributed to the advancement of telecommunications and optical technologies.

Collaborations

Tell has collaborated with notable individuals in his field, including Sigurd Wagner and Horst Manfred Kasper. These collaborations have further enriched his research and innovations.

Conclusion

Benjamin Tell's contributions to optical modulation and laser technology have significantly impacted the field. His innovative patents and collaborations with esteemed colleagues highlight his dedication to advancing technology. His work continues to influence the development of optical devices and systems.