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@article{Tawy:2020:10.1364/OSAC.393914,
author = {Tawy, G and Minassian, A and Damzen, M},
doi = {10.1364/OSAC.393914},
journal = {OSA Continuum},
pages = {1638--1649},
title = {High-power 7.4W TEM00 and wavelength-tunable Alexandrite laser with novel cavity design and efficient fibre-coupled diode-pumping},
url = {http://dx.doi.org/10.1364/OSAC.393914},
volume = {3},
year = {2020}
}

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TY  - JOUR
AB  - We report significant improvement in the performance of TEM00 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 (2∼5) mode operation from a compact double-end-pumped cavity, and with novel cavity design, a record power of 7.4 W in TEM00 operation with excellent beam quality (2≤1.1). With single-end pumping, laser power of 4.7 W (2∼1.3) 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 TEM00 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.
AU  - Tawy,G
AU  - Minassian,A
AU  - Damzen,M
DO  - 10.1364/OSAC.393914
EP  - 1649
PY  - 2020///
SN  - 2578-7519
SP  - 1638
TI  - High-power 7.4W TEM00 and wavelength-tunable Alexandrite laser with novel cavity design and efficient fibre-coupled diode-pumping
T2  - OSA Continuum
UR  - http://dx.doi.org/10.1364/OSAC.393914
UR  - http://hdl.handle.net/10044/1/80506
VL  - 3
ER  -

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