Pulse lengthening of a TE-CO2-laser for materials processing

H. Arenz; G. Sipos; P. Bickel; J. Christiansen; E. Eberl; D. H.H. Hoffmann

doi:10.1117/12.248603

Pulse lengthening of a TE-CO₂-laser for materials processing

H. Arenz
, G. Sipos
, P. Bickel
, J. Christiansen
, E. Eberl
, D. H.H. Hoffmann

Friedrich-Alexander University Erlangen-Nürnberg

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

Results of investigations on pulse lengthening of a TE-CO₂-laser for materials processing will be reported. The laser is used in two main modifications both working at an absolute pressure of lower than 300 mbar. With a folded resonator pulse durations up to 20 μsec have been achieved. As there is no longer the initial peak but a descending saw-tooth like form, one can get mean powers up to 100 kW and maximum powers up to 300 kW. Using a so-called hybrid-resonator containing a cw-CO₂-laser-section, there are even better pulse shapes within about 10-15 μsec, but containing lower pulse energies up to 1/2 Joule. The influence of parameters e.g. absolute pressure of working gas or gas mixture on pulse form and duration and results of cutting and drilling of metals like Al or Cu will be presented.

Original language	English
Pages (from-to)	74-82
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	2788
DOIs	https://doi.org/10.1117/12.248603
State	Published - 26 Aug 1996
Externally published	Yes
Event	High-Power Lasers: Gas and Solid State Lasers 1996 - Besancon, France Duration: 10 Jun 1996 → 14 Jun 1996

Keywords

Laser-induced plasma
Materials processing
TE-CO-laser

Access to Document

10.1117/12.248603

Cite this

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title = "Pulse lengthening of a TE-CO2-laser for materials processing",

abstract = "Results of investigations on pulse lengthening of a TE-CO2-laser for materials processing will be reported. The laser is used in two main modifications both working at an absolute pressure of lower than 300 mbar. With a folded resonator pulse durations up to 20 μsec have been achieved. As there is no longer the initial peak but a descending saw-tooth like form, one can get mean powers up to 100 kW and maximum powers up to 300 kW. Using a so-called hybrid-resonator containing a cw-CO2-laser-section, there are even better pulse shapes within about 10-15 μsec, but containing lower pulse energies up to 1/2 Joule. The influence of parameters e.g. absolute pressure of working gas or gas mixture on pulse form and duration and results of cutting and drilling of metals like Al or Cu will be presented.",

keywords = "Laser-induced plasma, Materials processing, TE-CO-laser",

author = "H. Arenz and G. Sipos and P. Bickel and J. Christiansen and E. Eberl and Hoffmann, \{D. H.H.\}",

year = "1996",

month = aug,

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doi = "10.1117/12.248603",

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T1 - Pulse lengthening of a TE-CO2-laser for materials processing

AU - Arenz, H.

AU - Sipos, G.

AU - Bickel, P.

AU - Christiansen, J.

AU - Eberl, E.

AU - Hoffmann, D. H.H.

PY - 1996/8/26

Y1 - 1996/8/26

N2 - Results of investigations on pulse lengthening of a TE-CO2-laser for materials processing will be reported. The laser is used in two main modifications both working at an absolute pressure of lower than 300 mbar. With a folded resonator pulse durations up to 20 μsec have been achieved. As there is no longer the initial peak but a descending saw-tooth like form, one can get mean powers up to 100 kW and maximum powers up to 300 kW. Using a so-called hybrid-resonator containing a cw-CO2-laser-section, there are even better pulse shapes within about 10-15 μsec, but containing lower pulse energies up to 1/2 Joule. The influence of parameters e.g. absolute pressure of working gas or gas mixture on pulse form and duration and results of cutting and drilling of metals like Al or Cu will be presented.

AB - Results of investigations on pulse lengthening of a TE-CO2-laser for materials processing will be reported. The laser is used in two main modifications both working at an absolute pressure of lower than 300 mbar. With a folded resonator pulse durations up to 20 μsec have been achieved. As there is no longer the initial peak but a descending saw-tooth like form, one can get mean powers up to 100 kW and maximum powers up to 300 kW. Using a so-called hybrid-resonator containing a cw-CO2-laser-section, there are even better pulse shapes within about 10-15 μsec, but containing lower pulse energies up to 1/2 Joule. The influence of parameters e.g. absolute pressure of working gas or gas mixture on pulse form and duration and results of cutting and drilling of metals like Al or Cu will be presented.

KW - Laser-induced plasma

KW - Materials processing

KW - TE-CO-laser

UR - https://www.scopus.com/pages/publications/58649122343

U2 - 10.1117/12.248603

DO - 10.1117/12.248603

M3 - 会议文章

AN - SCOPUS:58649122343

SN - 0277-786X

VL - 2788

SP - 74

EP - 82

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - High-Power Lasers: Gas and Solid State Lasers 1996

Y2 - 10 June 1996 through 14 June 1996

ER -

Pulse lengthening of a TE-CO₂-laser for materials processing

Abstract

Keywords

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