Passive cavity transverse-mode stability and its influence on the active cavity mode properties for unstable optical resonators

Kurt Edmund Oughstun

doi:10.1117/12.18428

1 June 1990 Passive cavity transverse-mode stability and its influence on the active cavity mode properties for unstable optical resonators

Kurt Edmund Oughstun

Author Affiliations +

Proceedings Volume 1224, Optical Resonators; (1990) https://doi.org/10.1117/12.18428
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

Passive-cavity transverse-mode stability properties such as the transverse-mode discrimination ratio and aberration sensitivity are analyzed. The influence of the diffractive formation of the transverse-mode field distribution on the aberration sensitivity is studied, along with the relationships between this sensitivity measure and the diffractive transverse-mode discrimination in a cavity. It is shown that the passive unstable-cavity mode stability properties are connected with the properties of the central core region of the resonator that is defined by the cavity Fresnel zone structure. Specifically, the transverse-mode discrimination or separation ratio with any perturbation or aberration source is a maximum when there is a constructive interference along with the cavity optic axis between the edge scattered converging wave field from the feedback aperture and the dominant geometric mode of the cavity.

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Kurt Edmund Oughstun "Passive cavity transverse-mode stability and its influence on the active cavity mode properties for unstable optical resonators", Proc. SPIE 1224, Optical Resonators, (1 June 1990); https://doi.org/10.1117/12.18428

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