Keio University, in collaboration with NEC and Epi-Photonics, is conducting research and development on a method to control the actual network based on theoretical calculations on a digital twin. Anticipating the IOWN and APN era, where the number of wavelengths will be significantly increased, leading to an era of one wavelength per person. Specifically, when the wavelength band is expanded to the C+L band, the nonlinearity that occurs when the utilization rate, position, spacing, and distance of the wavelengths used interact in a complex way between wavelength bands, causing signal degradation, is theoretically calculated on a digital twin, and an automatically equalizing system is applied using a newly developed adaptive WSS (Wavelength Selective Switch). At iPOP, we will demonstrate and exhibit these results at our booth.

慶應義塾大学は、IOWNやAPN時代を見据えて、波長数を大幅に増やし一人1波長の時代に起こる各種問題を、デジタルツイン上で理論的に計算し、その結果で実ネットワークをコントロールする手法を、慶應義塾、NEC、Epi-Photonicsと共同で研究開発を行っています。具体的には、波長のバンドをC＋Lバンドに拡大したときに、利用率や利用波長の位置や間隔、距離によって複雑に影響しあい信号の劣化が生じる非線形性をデジタルツインで理論的に計算し、新開発のアダプティブなWSS（波長選択スイッチ）で自動でイコライザーをかける方式です。iPOPでは、この結果をデモおよびブース展示を行います。