Transcelestial and NTT-AT partner to make rapid-resilience deployable for Japan’s connectivity

The partnership is designed to help operators and critical services restore or establish fiber-class links in hours and days, rather than months, reducing dependence on current timelines and constrained build routes.

JAPAN, 4 MAR 2026: Transcelestial and NTT Advanced Technology (NTT-AT) have inked a partnership to scale CENTAURI, Transcelestial's optical wireless system, across Japan's highest-priority connectivity environments, starting with rapid restoration and resilient redundancy in disaster scenarios.

"We have been advancing the validation and operational readiness of our rapidly deployable wireless laser communication system, "CENTAURI," in close collaboration with relevant stakeholders. CENTAURI is a field-deployable solution capable of delivering fiber-class, high-speed, high-capacity connectivity without the need for physical fiber installation. By eliminating the time and constraints associated with conventional infrastructure buildout, it enables the rapid establishment of robust communication links where they are needed most. The system is particularly well suited to addressing urgent societal needs, including early-stage disaster recovery and network augmentation in dense urban environments. Through the deployment of CENTAURI, we are committed to contributing to the enhancement of safe, secure, and resilient digital infrastructure," said Tadashi Ito, President & CEO, NTT ADVANCED TECHNOLOGY CORPORATION.

In dense urban areas, a fiber trenching permit can take months, and construction can be disruptive and costly. In disaster scenarios, physical repair timelines can stretch even longer.

For NTT-AT, CENTAURIs are being deployed as "Connectivity Insurance": a rapid-deploy redundancy layer that can bypass the slowest parts of connectivity restoration and expansion, while delivering fiber-class performance where speed and certainty are non-negotiable.

Transcelestial and NTT-AT will pursue a cohesive roadmap that treats optical wireless as a deployable infrastructure layer across multiple environments, rather than a one-off tool for a single scenario:

1) Disaster recovery that can be carried in and switched on
The partnership will prioritise mobile disaster units, including deployable "briefcase" laser units designed to restore backbone links within hours following earthquakes or typhoons, supporting national resilience priorities and helping keep hospitals, emergency services, and businesses online.

2) High-capacity transport that accelerates real network buildouts
Beyond restoration, CENTAURI can serve as a wireless alternative to physical fiber for the transport layer of mobile networks, delivering 10Gbps to 25Gbps+ with sub-millisecond latency, and enabling faster site rollouts where permitting and trenching slow expansion.

3) Resilience advantage for national security and defense
Optical wireless can provide an additional resilience layer where radio-based systems face eavesdropping or jamming risks. CENTAURI's laser-based approach supports use cases where link integrity and operational continuity are critical.

The partnership builds on a live commercial deployment at Matsuyama Castle, where CENTAURI was implemented with NTT-AT and Ehime CATV to deliver high-capacity connectivity across a hard-to-build route, without adding visible infrastructure to a landmark site. That deployment now serves as the operational starting point for scaling similar links across Japan.

Rohit Jha, CEO and Co-Founder of Transcelestial said: "Japan is one of the most advanced connectivity markets in the world, and it is also one of the clearest examples of why resilience has to be deployable. This partnership with NTT-AT is about making optical wireless operational at scale, so when networks face constraints, whether from geography, permitting, or disruption, teams have a fiber-class option they can put live quickly."

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