Tooru Shima

Title: Tooru Shima: Innovator in Optical Communication Systems

Introduction

Tooru Shima is a notable inventor based in Sapporo, Japan. He has made significant contributions to the field of optical communication systems. His innovative work has led to the development of a patented method that enhances the performance of optical amplifiers.

Latest Patents

Tooru Shima holds a patent for a "Method of activating optical communication system, channel increasing/decreasing method, and computer-readable recording medium." This invention relates to a method of activating an optical communication system that comprises multiple optical amplifiers. The method includes generating a desired slope in a specific wavelength range of a gain wavelength curve of the optical amplifier. It also involves adjusting the output of the optical amplifier to a desired level and performing these steps in a sequence across various optical repeater stations. This procedure allows for effective gain slope compensation, output control, and pre-emphasis control, ensuring that optical signals maintain substantially constant signal-to-noise ratios.

Career Highlights

Tooru Shima is currently employed at Fujitsu Corporation, where he continues to work on advancements in optical communication technologies. His expertise in this area has positioned him as a valuable asset to his team and the company.

Collaborations

Throughout his career, Tooru has collaborated with notable colleagues, including Takashi Tsuda and Kazuo Yamane. These partnerships have fostered innovation and contributed to the success of their projects.

Conclusion

Tooru Shima's contributions to optical communication systems exemplify the impact of innovative thinking in technology. His patented methods are paving the way for advancements in the field, showcasing the importance of collaboration and expertise in driving progress.