Resonator Design With An Intracavity Time-Varying Index Gradient

D. R. Neal; W. C. Sweatt; J. R. Torczynski

doi:10.1117/12.948022

27 January 1989 Resonator Design With An Intracavity Time-Varying Index Gradient

D. R. Neal, W. C. Sweatt, J. R. Torczynski

Proceedings Volume 0965, Current Developments in Optical Engineering III; (1989) https://doi.org/10.1117/12.948022
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

Side-pumped lasers such as flashlamp- or reactor-pumped lasers often have a nonuniform energy deposition in the gain medium, which can establish a significant transverse index gradient. This gradient significantly complicates energy extraction. A normalized resonator analysis method is developed that predicts resonator stability transitions and mode sizes for parabolic index fields. Parameter studies for some practical classes of resonators are presented, along with some design guidelines. Experimental comparison for a long-pulse gas laser shows good agreement with stability transition times. Two resonator-design approaches are presented for increasing the extraction efficiency in the presence of intracavity index gradients.

Citation Download Citation

D. R. Neal, W. C. Sweatt, and J. R. Torczynski "Resonator Design With An Intracavity Time-Varying Index Gradient", Proc. SPIE 0965, Current Developments in Optical Engineering III, (27 January 1989); https://doi.org/10.1117/12.948022

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