Location History:
- Tokyo, JA (1978)
- Tokyo, JP (1978 - 1982)
Company Filing History:
Years Active: 1978-1982
Title: **Innovative Contributions of Inventor Roy Lang in Laser Technology**
Introduction
Roy Lang, a prominent inventor based in Tokyo, JP, has made significant contributions to the field of laser technology, holding a total of three patents. His work focuses on enhancing the performance and efficiency of laser devices, particularly through innovative structural designs that improve operational stability and output.
Latest Patents
Roy Lang's most recent patents include groundbreaking developments such as the "Stripe-geometry double heterojunction laser device" and a "Heterostructure laser having a stripe region defined in an active layer." The stripe-geometry double heterojunction laser device features a stripe-shaped excitation region in its active layer, creating a refined differentiation in effective refractive index or optical absorption. This structure enables the device to exhibit low ohmic resistance and stable oscillation while suppressing relaxation oscillations. By protecting critical regions from exposure to reflective surfaces, Lang's design achieves high power density emissions and a significant threshold increase for catastrophic optical damage.
The second patent focuses on a heterostructure laser that uses a stripe region with varying impurity concentrations to enhance the dielectric constant. This technology stabilizes the transverse laser mode and enhances performance characteristics, producing a consistent single-mode optical output ranging from 10 to 30 mW in both continuous wave and pulsed operations.
Career Highlights
As an inventor at Nippon Electric Co., Ltd., Roy Lang has leveraged his expertise in semiconductor materials to develop cutting-edge laser systems. His innovative approaches have positioned him as a key player in the advancement of laser technology, making lasting impacts on both academic and industrial applications.
Collaborations
Throughout his career, Roy Lang has collaborated closely with notable coworkers Izuo Hayashi and Kohroh Kobayashi. Together, they have pushed the boundaries of laser technology, contributing to the successful development of these patented innovations.
Conclusion
Roy Lang's inventive spirit and dedication to improving laser technology have led to significant advancements in the field. His patented devices not only demonstrate technical ingenuity but also pave the way for future research and applications in laser systems, confirming his status as an influential inventor in the industry.