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Revolutionary Palm-Sized Laser Achieves 80% Efficiency

11/7/2025

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Summary

Story summary

Researchers at the University of Stuttgart have developed a compact short-pulse laser with efficiency over 80%, far above traditional systems.
The palm-sized device emits pulses under 50 femtoseconds, uses five components, and suits medicine and environmental monitoring.
Using a multipass optical parametric amplification method, the study achieves a 12 terahertz gain bandwidth product, published in Nature.

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Story summary

Researchers at the University of Stuttgart have developed a compact short-pulse laser with efficiency over 80%, far above traditional systems.
The palm-sized device emits pulses under 50 femtoseconds, uses five components, and suits medicine and environmental monitoring.
Using a multipass optical parametric amplification method, the study achieves a 12 terahertz gain bandwidth product, published in Nature.