Tommy Boilard

Aug 2, 2024 | opg.optica.org | John M. Ballato |Martin Bernier |Thomas Hawkins |Tommy Boilard

Recent progress in the fabrication of Yb-doped silicate fibers with low concentration quenching and low background absorption loss has led to the demonstration of anti-Stokes-fluorescence cooling in several aluminosilicate compositions. This breakthrough is critical to combat deleterious thermal effects due to the quantum defect in fiber lasers and amplifiers. Since cooling efficiencies remain low (1–2.7%), it is paramount to engineer compositions that improve this metric.