Operating Point Choice In Unstable Confocal Resonators

P. Kellen; M. Smith

doi:10.1117/12.956230

17 August 1978 Operating Point Choice In Unstable Confocal Resonators

P. Kellen, M. Smith

Proceedings Volume 0138, Advances in Laser Technology III: Emphasizing Gaseous Lasers; (1978) https://doi.org/10.1117/12.956230
Event: 1978 Technical Symposium East, 1978, Washington, D.C., United States

Abstract

Variation in coupling of unstable resonators is analyzed for the case of low order medium inhomogeneities. The analysis examines one-dimensional confocal unstable resonators with linear or quadratic index profiles in the resonator medium. These types of effects can arise from the bulk and wall heating present in gas lasers. The analysis shows that both the effective Fresnel number and the geometric magnification influence the local stability of the design point coupling. Choosing the Fresnel number to maximize mode loss separation may not be consistent with the choice of Fresnel number to minimize the influence of medium variations.

Citation Download Citation

P. Kellen and M. Smith "Operating Point Choice In Unstable Confocal Resonators", Proc. SPIE 0138, Advances in Laser Technology III: Emphasizing Gaseous Lasers, (17 August 1978); https://doi.org/10.1117/12.956230

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