Self-stabilization of a continuous wave multimode green laser due to antiphase dynamics

The stability of a diode pumped Nd:YAG laser with intracavity KTP in an L-shaped cavity is studied. The mirror which connects the two cavity arms is a dielectric which also acts as a partial polarizer. This design provides a high level of stability for the total output power, despite the instability...

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Bibliographic Details
Published in:Applied physics letters 1997-07, Vol.71 (2), p.154-156
Main Authors: Ustyugov, V. I., Orlov, O. A., Khaleev, M. M., Novikov, G. E., Viktorov, E. A., Mandel, Paul
Format: Article
Language:English
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Summary:The stability of a diode pumped Nd:YAG laser with intracavity KTP in an L-shaped cavity is studied. The mirror which connects the two cavity arms is a dielectric which also acts as a partial polarizer. This design provides a high level of stability for the total output power, despite the instability of the separate modes: separate modes are chaotic with large amplitude noise while the total output displays reduced noise below 1% rms. A model based on the Jones matrices is studied numerically. It shows antiphase and clustering, in excellent qualitative agreement with the experimental data.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.119488