Various applications of pulsed laser sources rely on the ability to produce a series of pulse pairs with a stepwise increasing delay between them. Implementing such optical delay scanning with high precision is demanding, in particular for long delays. Addressing this challenge, ETH physicists have developed a versatile “dual-comb” laser that combines a wide scanning range with high power, low noise, stable operation, and ease of use—thereby offering bright prospects for practical uses.
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Source: Phys.org