Engineers find a way to win in laser performance by losing

Engineers have shown a new way to reverse or eliminate loss by, ironically, adding loss to a laser system to actually reap energy gains. To help laser systems overcome loss, operators often pump the system with an overabundance of photons, or light packets, to achieve optical gain. But now engineers have shown a new way to reverse or eliminate such loss by, ironically, adding loss to a laser system to actually reap energy gains. In other words, they've invented a way to win by losing.

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