[19a-Z22-1~11] 3.13 Semiconductor optical devices

[19a-Z22-8] Investigation of optical wireless power transmission under seawater environment (2)

〇(M1)Yuma Aoki¹, Shunki Hayashu¹, Yuki Komuro¹, Tomoyuki Kato¹, Tomoya Sudo¹, Yiu Leung WONG¹, Shiro Uchida¹ (1.Chiba Inst.)

Keywords:optical wireless power transmission

To realize long-time operation of underwater probes in seawater, recharging by optical wireless power supply has been attracting attention. In this study, we investigated the distance dependence of the optical path length in water using a green laser beam, since a distance of more than 1 m is expected in actual underwater optical wireless power transfer. As a result, it was confirmed that the arrival rate of the laser beam decreased as the underwater optical path length increased.