Power-scaled CW Alexandrite lasers
نویسندگان
چکیده
Abstract We present several strategies for increasing the output laser power of near-diffraction limited continuous-wave Alexandrite lasers pumped by fibre-coupled red diodes. Laser mode size control using a convex mirror with varying thermal lens is shown to be an efficient method generating record levels from diode-pumped laser. 8.6 W obtained $$M^{2}<1.1$$ M 2 < 1.1 and optical efficiency 27%. 735–790 nm wavelength tuning demonstrated $$> {2.5}\,\hbox {W}$$ > 2.5 W dual-wavelength 4.2 W. In ring-cavity geometry, 5.1 showing promising potential multi-watt single-longitudinal-mode operation. Detailed cavity modelling including analysis also provided.
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ژورنال
عنوان ژورنال: Applied Physics B
سال: 2023
ISSN: ['1432-0649', '0946-2171']
DOI: https://doi.org/10.1007/s00340-023-07989-x