Erbium:YAG laser resonator which reduces laser damage to the cavity high reflector

David G. Angeley

doi:10.1117/12.382791

14 April 2000 Erbium:YAG laser resonator which reduces laser damage to the cavity high reflector

David G. Angeley

Proceedings Volume 3929, Solid State Lasers IX; (2000) https://doi.org/10.1117/12.382791
Event: Symposium on High-Power Lasers and Applications, 2000, San Jose, CA, United States

Abstract

A rod of solid state gain material centered between two flat end mirrors (i.e. the flat-flat resonator) is a common laser resonator configuration. Positive dioptric power in the rod, thermally induced by the pumping of the gain medium, enables the resonator to operate in the stable regime. A typical problem that may ultimately limit maximum power in lasers of this type is the susceptibility of the cavity end mirrors to laser-induced damage. A technique that mitigates this damage by increasing the intra-cavity spot width at the end mirror location is described. The resulting modified resonator is equivalent to the flat-flat resonator with regard to its output laser beam propagation parameters and to the symmetrical mode fill of the gain medium.

Citation Download Citation

David G. Angeley "Erbium:YAG laser resonator which reduces laser damage to the cavity high reflector", Proc. SPIE 3929, Solid State Lasers IX, (14 April 2000); https://doi.org/10.1117/12.382791

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