Demonstration model of LEO satellite (AE4La) and onboard optical wireless communication device. Photo: ArkEdge Space
A Japanese consortium of Softbank, ArkEdge Space, Kiyohara Optics, and the National Institute of Information and Communications Technology (NICT) are planning to demonstrate optical communications between space and the stratosphere.
The companies announced plans on Thursday to launch a Low-Earth Orbit (LEO) satellite next year to verify optical wireless communications between space and the ground. Then in 2027, the parties plan to conduct what they say would be world-first to mount an optical communications device on a high altitude platform stations (HAPS) vehicle to verify bi-directional optical wireless communications between a satellite in LEO and a HAPS vehicle.
Smallsat manufacturer ArkEdge Space is currently developing a 6U-class cubesat and will coordinate launch and satellite operations. Optics manufacturer
Kiyohara Optics will develop and manufacture the optical communications devices. The optical wireless communication terminal is currently in development to be ultra-small and lightweight while achieving 10 Gbps bidirectional data transmission.
Softbank will provide development of optical wireless communication devices and related equipment for stratospheric environments, as well as HAPS flight operations and integration of equipment. Softbank and NICT are also involved with developing optical wireless communication devices. Softbank will provide HAPS flight operations,and NICT will contribute to the optical ground stations.
The companies expect the technology to be used in applications like relaying Earth Observation data, providing connectivity in underserved areas, and restoring communications after natural disaster.
AloJapan.com