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- W3025931830 abstract "We report significant improvement in the performance of TEM 00 alexandrite laser operation by employing high power fibre-coupled red diode pumping, novel cavity design, and active direct Shack-Hartmann wavefront sensor measurement of pump-induced lensing. We demonstrate 12.7 W of laser power in low-order ( <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline> <mml:msup> <mml:mi>M</mml:mi> <mml:mn>2</mml:mn> </mml:msup> <mml:mo>∼<!-- ∼ --></mml:mo> <mml:mn>5</mml:mn> </mml:math> ) mode operation from a compact double-end-pumped cavity, and with novel cavity design, a record power of 7.4 W in TEM 00 operation with excellent beam quality ( <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline> <mml:msup> <mml:mi>M</mml:mi> <mml:mn>2</mml:mn> </mml:msup> <mml:mo>≤<!-- ≤ --></mml:mo> <mml:mn>1.1</mml:mn> </mml:math> ). With single-end pumping, laser power of 4.7 W ( <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline> <mml:msup> <mml:mi>M</mml:mi> <mml:mn>2</mml:mn> </mml:msup> <mml:mo>∼<!-- ∼ --></mml:mo> <mml:mn>1.3</mml:mn> </mml:math> ) was achieved with slope efficiencies as high as 54.9 %; a record efficiency for red-diode-pumped alexandrite. Using a birefringent filter, continuous laser wavelength tuning from 725-808 nm is achieved in diffraction-limited TEM 00 mode, with laser power of 4.7 W at 765 nm, and >1 W across 730-805 nm, which is a higher tunable power than any other directly diode-pumped vibronic laser, to the best of our knowledge." @default.
- W3025931830 created "2020-05-21" @default.
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- W3025931830 date "2020-06-10" @default.
- W3025931830 modified "2023-10-01" @default.
- W3025931830 title "High-power 7.4W TEM<sub>00</sub> and wavelength-tunable alexandrite laser with a novel cavity design and efficient fibre-coupled diode-pumping" @default.
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- W3025931830 doi "https://doi.org/10.1364/osac.393914" @default.
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