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A LASER is not capable of generating more energy then is put into it.That would aply to the nuclear fusion that it would be used for. However, it would be possible to concentrate energy in short pulses and each pulse would contain more energy than could be fed into it in the same period of time.LASER's have a high energy yield of round 90% or more, where light bulbs have energy yields of only a few percent (this is one of the reasons why a 5 milliwatt LASER could make you permanently blind while a 45 watt light bulb won't). But yields higher than 100% are naturally impossible.
A LASER is not capable of generating more energy then is put into it.
That would aply to the nuclear fusion that it would be used for. However, it would be possible to concentrate energy in short pulses and each pulse would contain more energy than could be fed into it in the same period of time.
LASER's have a high energy yield of round 90% or more, where light bulbs have energy yields of only a few percent (this is one of the reasons why a 5 milliwatt LASER could make you permanently blind while a 45 watt light bulb won't). But yields higher than 100% are naturally impossible.
