Ann C Von Lehmen

Title: Ann C Von Lehmen: Innovator in Optoelectronics

Introduction

Ann C Von Lehmen is a distinguished inventor based in Little Silver, NJ (US). She has made significant contributions to the field of optoelectronics, holding a total of 3 patents. Her work focuses on advanced laser technologies that have potential applications in various industries.

Latest Patents

One of her latest patents is for optically controlled surface-emitting lasers. This invention comprises a heterojunction, bipolar photo-transistor that is epitaxially grown on a substrate, along with a vertical-cavity, surface-emitting laser. The design allows for a controlling optical beam to selectively illuminate the photo-transistor, enabling the laser to emit light based on the electrical biasing conditions. This combination device can function as an optical amplifier or operate as an AND or OR gate.

Another notable patent involves selective area regrowth for surface-emitting lasers. This method utilizes molecular beam epitaxy to grow a vertical-cavity, surface-emitting diode laser structure from III-V materials. The process includes etching and regrowing these materials in sharply defined vertical features, which enhances the performance and efficiency of the laser devices.

Career Highlights

Ann C Von Lehmen is currently associated with Bell Communications Research, Inc., where she continues to innovate in the field of optoelectronics. Her work has been instrumental in advancing laser technology, making her a key figure in her industry.

Collaborations

Throughout her career, Ann has collaborated with notable colleagues, including Meir Orenstein and Edward M Clausen, Jr. These partnerships have contributed to her success and the development of her groundbreaking inventions.

Conclusion

Ann C Von Lehmen is a remarkable inventor whose work in optoelectronics has led to significant advancements in laser technology. Her contributions continue to influence the field and inspire future innovations.