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EPFL’s chip-scale laser fires femtosecond pulses on par with bench instruments that fill a whole table, a shrink that could push ultrafast optics into everyday devices

A team led by EPFL has built a laser on a single photonic chip that fires femtosecond pulses with energy and speed that, until now, required bench-top instruments occupying an entire optical table.

Scientists have finally packed a laboratory-class ultrafast laser onto a tiny photonic chip.

Placed on a 1 CHF coin for scale, EPFL’s photonic chip shows how a laser architecture once confined to table-top systems can ...
Nature

A highly efficient hybrid fiber optic laser using a cesium atom vapor cell as an optical gain medium

A new scheme of a highly efficient hybrid laser cavity is proposed and experimentally demonstrated utilizing a hot cesium (Cs) vapor cell as an optical gain medium. The laser cavity consists of a ...
Nature

Dual-chirped optical parametric amplification of high-energy single-cycle laser pulses

We demonstrate how a scheme called advanced dual-chirped optical parametric amplification (DC-OPA) that employs two kinds of nonlinear crystal (BiB 3 O 6 and MgO-doped lithium niobate) can generate ...