Abstract
In order to compensate for thermal lensing in Nd:YAG rod active media, placed in different positive-branch unstable resonators with a super-Gaussian reflectivity profile of the output mirror, a deformable thin glass plate was used as the rear minor. Unstable resonators with magnifications of M =1.5 and M =1.8 were designed with a beam quality of 0.8-mm-mrad. For unloaded resonators the output energies of the laser working at a 10 Hz repetition rate and pump energies up to 50 J per pulse were close to those obtained for a 1 Hz repetition rate.
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Pavel, N., Dascalu, T., Lupei, V., Totia, H. (1996). Variable Reflectivity Mirror Unstable Resonator Thermal Lens Compensated by a Deformable Rear Mirror. In: Kossowsky, R., Jelinek, M., Walter, R.F. (eds) High Power Lasers — Science and Engineering. NATO ASI Series, vol 7. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8725-9_17
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DOI: https://doi.org/10.1007/978-94-015-8725-9_17
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