NTT Devices America Inc. is a subsidiary of Nippon Telegraph and Telephone Corporation that focuses on advanced device technologies, including semiconductors and photonics. The company develops high-performance optical and electronic components for communication and sensing systems. It collaborates with NEC Laboratories America on research related to optical transmission and integrated network solutions. These partnerships strengthen innovation in telecommunication infrastructure and next-generation connectivity. NTT Devices America contributes significantly to global progress in photonic and semiconductor research.
We report the first trial of network tomography over a live network in a multi-domain environment. We visualize end-to-end optical powers along multiple routes across multiple domains solely from a commercial B00G transponder, enabling performance bottleneck localization, power and routing optimization, and lightpath provisioning.
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NEC Laboratories America, Inc. (NEC Labs) is the US-based center for NEC Corporation’s global network of corporate research laboratories. Our diverse research groups collaborate with industry, academia and governments to provide disruptive solutions to complex problems. A leader in the integration of IT and network technologies with more than 100 years of expertise, NEC provides a combination of products and solutions that cross-utilize the company’s experience and global resources to meet the complex and ever-changing needs of its customers.