Navy/Raytheon's 100kW weaponized laser

The 100 kilowatt experimental Free Electron Laser (FEL) uses superconducting electron accelerators to produce high-power laser beams that could target cruise missiles, airplanes or boats.

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Laser to Light to Electricity

Photonic Power Systems Inc. has developed a system that uses a laser to inject power in the form of light into a fiber-optic cable and a photovoltaic (PV) array to convert the light back into electricity for powering devices. This method of transferring power has advantages in situations where sparks or shorts can be a fatal problem, where electromagnetic interference is more than just an inconvenience—in cellphone base stations, for example, or in pacemakers—and where conventional methods are bulky and cumbersome.

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A laser that stitches the skin

A doctor from Tel Aviv University demonstrated how a new laser the university has developed is better than stitching up a patient. The laser allows a wound to be welded shut as opposed to sutured, which makes it far more watertight and there's less tearing.

New Type Of Laser Discovered

A Princeton-led team of researchers has discovered an entirely new mechanism for making common electronic materials emit laser beams. The new laser phenomenon has some interesting features. For instance, in a conventional laser relying on low momentum electrons, electrons often reabsorb the emitted photons, and this reduces overall efficiency. In the new type of laser, however, this absorption is reduced by 90%. This could potentially allow the device to run at lower currents, and also makes it less vulnerable to temperature changes.