March 31, 2023

Researchers Value Passion and Knowledge, and Seek to Solve Problems at Hand and Those That Have Remained Unsolved for Many Years

One of the most fundamental problems in science is quantitatively defining the complexity of organized things. Over the past several decades, many quantitative definitions of complexity have been proposed, but a single definition has not been agreed upon. Tatsuaki Okamoto, an NTT Fellow at NTT Social Informatics Laboratories proposed a quantitative definition that simultaneously captures all three key features of complexity for the first time. We interviewed him about the progress of his research activities and the research environment in Japan and the United States.

March 31, 2023

Spatial-mode Optical Measurement Technology to Support Diverse Global Services in the Future

Communication traffic continues to increase each year and to continue to support this demand in the future, it will be necessary to shift from conventional single-mode fiber to next-generation optical fiber lines, utilizing multi-core and multi-mode fiber. However, to implement high-quality next-generation optical fiber lines requires consideration of different physical phenomena than those considered in the past. We spoke with Distinguished Researcher Atsushi Nakamura about his spatial-mode optical measurement technology, which can visualize and grasp such phenomena.