Kiyoshi Nosu

Title: Kiyoshi Nosu: Innovator in Acousto-Optic Technology

Introduction

Kiyoshi Nosu is a notable inventor based in Yokosuka, Japan. He has made significant contributions to the field of acousto-optic technology, particularly through his innovative patent. His work has implications for various applications in optical communications and signal processing.

Latest Patents

Kiyoshi Nosu holds a patent for a "Method and apparatus for acousto-optically shifting the frequency of a." This invention features an acousto-optic frequency shifter that utilizes two cylindrical acoustic resonators driven 90 degrees out of phase from one another. These resonators are strategically placed around a birefringent, single-mode optical fiber, approximately three-quarters of a polarization beat length apart. The resonators interact with optical radiation propagating in one of two polarization modes of the fiber, facilitating the cross-coupling of two sidebands into the other polarization mode. This innovative design suppresses one of the sidebands in the cross-coupled mode while enhancing the other, ultimately creating a single sideband signal entirely within the fiber.

Career Highlights

Kiyoshi Nosu is associated with Sachs/Freeman Associates, Inc., where he continues to develop and refine his inventions. His expertise in acousto-optic technology has positioned him as a valuable asset in his field.

Collaborations

Kiyoshi has collaborated with notable colleagues, including Henry F. Taylor and Scott C. Rashleigh. Their combined efforts have contributed to advancements in optical technologies and innovations.

Conclusion

Kiyoshi Nosu's contributions to acousto-optic technology through his patent demonstrate his innovative spirit and technical expertise. His work continues to influence the field and inspire future advancements in optical communications.