&lt;title&gt;Thermal lensing effect in fast-axial flow CO2 lasers&lt;/title&gt;

Moissl, M.; Paul, R.; Breining, K.; Giesen, Adolf; Huegel, Helmut

doi:10.1117/12.25984

Cited by 3 publications

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“…E, reduced field strength E/n and hence electron drift velocity VD are assumed to be constant: j.E=evD.nn=consi fleflCOflSt (2) Obviously, the decrease of averaged integral small signal gain with pressure (Oo l/p) can be attributed to a similar decrease of the electron density with pressure (ne i/p)…”

Section: Resultsmentioning

confidence: 99%

<title>Experimental investigations of laser parameters in fast-axial-flow rf excited CO2 discharges with different cross sections</title>

et al. 1993

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Fast axial flow rf-excited discharges (un 13.5 MHz) in tubes with rectangular cross sections and plane electrodes have been investigated. Probing the tubes on-axis the dependence of small signal gain as well as saturation intensity on the input power density is identical for all the different cross sections.Under equal conditions the small signal gain profiles revealed significant decrease in the vicinity of the side walls with increasing tube dimensions. This is attributed to the change of discharge behavior with increasing interelectrode discharge length. It was found that the critical pressure for the onset of filamentation is reciprocal to this dimension.With this geometrical dependency the laser power of axial flow rf-excited discharges is not volumetric scalable in a straightforward way.

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Section: Resultsmentioning

confidence: 99%

<title>Experimental investigations of laser parameters in fast-axial-flow rf excited CO2 discharges with different cross sections</title>

et al. 1993

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Optical inhomogeneities of the active media of high-power industrial CO₂lasers with fast axial flow

et al. 1997

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The development of turbulence in the active medium of a fast-flow gas-discharge laser

et al. 2006

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<title>Thermal lensing effect in fast-axial flow CO2 lasers</title>

Cited by 3 publications

References 0 publications

<title>Experimental investigations of laser parameters in fast-axial-flow rf excited CO2 discharges with different cross sections</title>

<title>Experimental investigations of laser parameters in fast-axial-flow rf excited CO2 discharges with different cross sections</title>

Optical inhomogeneities of the active media of high-power industrial CO₂lasers with fast axial flow

The development of turbulence in the active medium of a fast-flow gas-discharge laser

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<title>Thermal lensing effect in fast-axial flow CO2 lasers</title>

Cited by 3 publications

References 0 publications

<title>Experimental investigations of laser parameters in fast-axial-flow rf excited CO2 discharges with different cross sections</title>

<title>Experimental investigations of laser parameters in fast-axial-flow rf excited CO2 discharges with different cross sections</title>

Optical inhomogeneities of the active media of high-power industrial CO2lasers with fast axial flow

The development of turbulence in the active medium of a fast-flow gas-discharge laser

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Optical inhomogeneities of the active media of high-power industrial CO₂lasers with fast axial flow