Company Filing History:
Years Active: 1999
Title: Masaaki Sudoh: Innovator in Optical Waveguide Technology
Introduction
Masaaki Sudoh is a prominent inventor based in Sakura, Japan. He has made significant contributions to the field of optical waveguide technology, holding 2 patents that showcase his innovative approach to optical components.
Latest Patents
His latest patents include an optical waveguide grating and a production method for it. This optical waveguide grating features radiative mode-coupling properties, providing exceptional stability and reliability as an optical component. The central wavelength of the rejection band exhibits low temperature dependence due to the use of silica glass doped with germanium and boron for the core. Furthermore, the rejection bandwidth can be narrowed without increasing the grating length by forming the radiative mode-coupled optical waveguide grating in an optical waveguide where the mean relative refractive index difference of the core is greater than that of optical communication waveguides. Additionally, the rejection can be enhanced by minimizing the instances where propagation modes of the core couple back to cladding modes in planar optical waveguide gratings.
Another notable patent is an optical filter with a planar optical waveguide that has periodically varied characteristics. The core comprises a main stem formed on a substrate, extending linearly in the beam propagating direction, along with short branches that extend perpendicularly to the beam propagating direction. These branches are arranged at regular intervals, creating a ladder geometry when viewed from above, thus forming a rectangular waveform arrangement. The core constitutes a grating structure where the width of the core varies periodically with the branches in the beam propagating direction.
Career Highlights
Masaaki Sudoh is associated with Fujikura Limited, a company known for its advancements in optical technologies. His work has significantly impacted the development of optical components used in various applications.
Collaborations
He has collaborated with notable coworkers, including Michihiro Nakai and Kensuke Shima, contributing to the innovative projects at Fujikura Limited.
Conclusion
Masaaki Sudoh's contributions to optical waveguide technology exemplify his innovative spirit and dedication to advancing the field. His patents reflect a deep understanding of optical components and their applications, marking him as a key figure in this area of technology.