EPFL-forskare miniatyriserar ultrasnabb laser på fotoniskt chip

5 juni 2026

Rapporterad av AI

Forskare vid EPFL har skapat den första ultrasnabba lasern i chipformat som matchar prestandan hos traditionella femtosekundlasrar av bordsmodell. Enheten levererar pulser så korta som 147 femtosekunder med en energi på 1,05 nanojoule.

Genombrottet, som rapporterats i Nature, leddes av professor Tobias J. Kippenberg. Det använder en Mamyshev-oscillatorarkitektur på ett erbium-dopat kiselnitridchip. Laserkaviteten mäter 42 centimeter men är hopvikt på ett chip i storlek med ett tändstickshuvud. Denna design undviker komponenter som är svåra att tillverka på fotoniska chip och motstår destabiliserande olinjära effekter. Medförfattaren Zheru Qiu noterade att metoden möjliggör produktion i waferskala av mer än 1 000 enheter samtidigt. Arbetet involverade även forskare från Helmholtz-Zentrum Dresden-Rossendorf. Potentiella tillämpningar inkluderar medicinsk diagnostik, miljöövervakning, spektroskopi och kompakta optiska atomur.

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23 maj 2026 08:07

EPFL-forskare miniatyriserar ultrasnabb laser på fotoniskt chip

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