Two-dimensional time-resolved modelling of copper HyBrID laser beam quality

A numerical model is used to describe the spatio-temporal evolution of the beam delivered by a pulsed copper HyBrID laser. The model takes diffraction, transient gain saturation and the cavity geometry into account. The time evolution of experimentally accessible beam parameters, like M 2, power-in-...

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Bibliographic Details
Published inOptics communications Vol. 223; no. 4; pp. 389 - 397
Main Authors Huot, N., Audouard, E., Laporte, P.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.08.2003
Elsevier Science
Elsevier
Subjects
Beam characteristics: profile, intensity, and power; spatial pattern formation
Beam quality
Copper HyBrID lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gas lasers including excimer and metal-vapor lasers
Laser optical systems: design and operation
Lasers
Optics
Physics
Time-resolved model
Copper HyBrID lasers
Time-resolved model
Beam quality
Time resolution
Radiation quality
Intensity distribution
Unstable resonator
Theoretical study
Two dimensional model
Copper
Gas lasers
Laser cavity resonators
Keywords: Beam quality
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Summary:A numerical model is used to describe the spatio-temporal evolution of the beam delivered by a pulsed copper HyBrID laser. The model takes diffraction, transient gain saturation and the cavity geometry into account. The time evolution of experimentally accessible beam parameters, like M 2, power-in-the-bucket or brightness, is deduced. The model is applied to the description of a copper HyBrID flat–flat cavity and to the optimization of an unstable confocal positive branch copper HyBrID resonator.
ISSN:0030-4018
1873-0310
DOI:10.1016/S0030-4018(03)01613-4