OPTICAL WIRELESS POWER TRANSMISSION USING LASER DIODES

A system for transmitting laser power to a remote receiver, comprising a laser diode, an optical system for collimating and focusing the laser beam onto the receiver, and a scanning system for directing the beam towards the receiver. The beam has a wavelength of 1150-1550 nm, has a power of >300 mW, has an emitter width of between 15 and 250 μm, and is a spatial multimode beam, having >50% of its power in the TEMmode, and 20. The lasing cavity has a Fresnel Number between 0.01 and 20, and a slow axis Mof