JOEL WILLIAMS, ASSOCIATE EDITOR [email protected]LAUSANNE, Switzerland, Dec. 22, 2020 — Researchers from École Polytechnique Fédérale de Lausanne (EPFL) have developed a method of nonlinear beam cleaning in a multimode laser cavity. The technique establishes a new approach for the generation of high-energy ultrashort pulses with single-mode beam quality. As a result, the work enables fiber lasers to offer the same power levels as solid-state lasers without requiring cascaded amplifiers, Ugur Tegin told Photonics Media. Tegin is lead author of the study describing the advance. Due to the small core size of the single-mode fibers, mode-locked fiber lasers...Read full articleRelated content from Photonics MediaArticlesFiber Oscillator Extends Femtosecond Lasing to VIS-Based ApplicationsFemtosecond (fs) fiber oscillators are a standard technology used to generate fs laser pulses. They offer a compact design, outstanding performance, and are cost-effective to use. 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