High-power diode-pumped Er3+:YAG single-crystal fiber laser

Igor Martial; Julien Didierjean; Nicolas Aubry; François Balembois; Patrick Georges

doi:10.1117/12.883361

8 June 2011 High-power diode-pumped Er3⁺:YAG single-crystal fiber laser

Igor Martial, Julien Didierjean, Nicolas Aubry, François Balembois, Patrick Georges

Proceedings Volume 8037, Laser Radar Technology and Applications XVI; 80371B (2011) https://doi.org/10.1117/12.883361
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

We describe an efficient laser emission from a directly grown Er³⁺:YAG single-crystal fiber that is resonantly pumped using a continuous-wave (CW) laser diode at 1532 nm. In a longitudinal pumping, it emits 12.5 W at 1645 nm with a slope efficiency of 32%, which is the highest ever reported for a directly grown Er:YAG single-crystal fiber laser. Using an off-axis pumping scheme, CW output powers up to 7.3 W can be reached and in Q-switched operation, the laser produces 2 mJ pulses with a duration of 38 ns at the repetition rate of 1 kHz with an M² factor below 1.8. To our knowledge this is the first directly grown Er³⁺:YAG single-crystal fiber Q-switched laser. In dual-side pumping scheme a laser emission at 1617 nm is achieved with output powers up to 5.7 W representing the highest output power ever achieved by a diode-pumped Er:YAG laser at this wavelength.

Citation Download Citation

Igor Martial, Julien Didierjean, Nicolas Aubry, François Balembois, and Patrick Georges "High-power diode-pumped Er3⁺:YAG single-crystal fiber laser", Proc. SPIE 8037, Laser Radar Technology and Applications XVI, 80371B (8 June 2011); https://doi.org/10.1117/12.883361

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