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pro vyhledávání: '"J. M. Spinhirne"'
Publikováno v:
Applied optics. 21(21)
An experimental study has been conducted on the ability of intracavity adaptive optics to improve the performance of a half-symmetric unstable resonator with intracavity axicon (HSURIA) by correcting for aberrations from misfigure or misalignment of
Publikováno v:
Applied optics. 20(6)
A detailed experimental study has been conducted on adaptive optical control methodologies inside a laser resonator. A comparison is presented of several optimization techniques using a multidither zonal coherent optical adaptive technique system wit
Autor:
T. K. Barrett, D. G. Sandler, R. Q. Fugate, B. A. Ellerbroek, M. T. Donovan, C. H. Higgins, J. M. Spinhirne
Publikováno v:
Adaptive Optics for Large Telescopes.
Simulations and earlier off-line experimental data suggest1,2 that a wavefront sensor based on an artificial neural network processor may provide a simple way to measure low-order wavefront distortion in an astronomical telescope. The neural network
Publikováno v:
Le Journal de Physique Colloques. 41:C9-405
Publikováno v:
Applied Physics Letters. 30:89-91
In reduced LiNbO3 : Mn both the photorefractive sensitivity and the simultaneously measured photocurrent result from drift with a polarization‐dependent effective ’’internal field’’ of about 6 kV/cm. In reduced undoped LiTaO3 the observed d
Publikováno v:
SPIE Proceedings.
An essential requirement of high-energy laser resonator configurations is the capability of efficiently extracting power in a near-diffraction limited beam. Mode discrimination as well as optical beam quality are often compromised as a result of temp
Autor:
D. Anafi, J. M. Spinhirne
Publikováno v:
SPIE Proceedings.
A deformable mirror in the compacted beam region of a HSURIA (half symmetric unstable resonator with internal axicon) is used to conduct intracavity adaptive optics experiments. The gain cell is a convection cooled CO2 electric discharge located in t
Autor:
J. M. Spinhirne, D. Anafi
Publikováno v:
SPIE Proceedings.
Publikováno v:
Applied Optics. 23:1529
A numerical analysis of the system performance of the intracavity adaptive optics experiment is presented. The analysis begins with a detailed comparison of the calculated and experimentally measured sensitivities of the unstable laser to both intrac
Publikováno v:
Applied Optics. 20:1926
This paper continues the discussion of the detailed experimental study conducted on adaptive optical control methodologies inside a laser resonator.(1) In this paper we discuss the experimental results for the correction of tilt within a laser resona