China beamed gigabit internet from space using low-power lasers: Here's how it worked

While the raw speed isn't too impressive, it was achieved using a laser with less power than an energy-saving lightbulb.
POWER Magazine

Laser Wireless Power Transmission Breakthrough Could Transform Remote Energy Delivery

NTT Inc. and Mitsubishi Heavy Industries Ltd. (MHI) conducted an optical wireless power transmission experiment using a laser beam to wirelessly transmit energy over a distance of one kilometer. By ...