CIRP Encyclopedia of Production Engineering

2014 Edition
| Editors: The International Academy for Production Engineering, Luc Laperrière, Gunther Reinhart


  • Michael Schmidt
Reference work entry



A pulse (from latin pulsus) is a transient variation of a quantity whose value is normally constant (Encyclopedia Britannica).

Theory and Application

Pulse Shapes

Generally pulses can have arbitrary shape. In production technology, most frequently pulses of rectangular, triangular, Gaussian, or delta shape, or combinations of them are applied. It can be distinguished between single pulses and pulse trains. Figure 1 shows typical pulse shapes as well as their mathematical definitions.
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  1. Böhme T (2011) Fascination electron beam – Electron beam drilling: precise results at high drilling frequency. (date of access: 28 Feb 2013)
  2. Demtröder W (2007) Laserspektroskopie - grundlagen und techniken [laser spectroscopy - fundamentals and techniques], 5th edn. Springer, Berlin (in German)Google Scholar
  3. Dirscherl M (2008) Ultrashort pulse lasers - basic principles and applications. Bayerisches Laserzentrum GmbHGoogle Scholar
  4. Dobenek D von: Hole drilling by means of an electron beam. (date of access: 28 Feb 2013)
  5. Encyclopedia Britannica: (date of access: 12 Apr 2012)
  6. Hügel H, Graf T (2009) Laser in der fertigung: strahlquellen, systeme, fertigungsverfahren [lasers in production: laser sources, systems, production techniques], 2nd edn. Vieweg+Teubner, Wiesbaden (in German)Google Scholar
  7. Leitz K-H, Redlingshöfer B, Reg Y, Otto A, Schmidt M (2011) Metal ablation with short and ultrashort laser pulses. Phys Procedia 12:230–238CrossRefGoogle Scholar
  8. Leitz K-H, Koch H, Otto A, Schmidt M (2012a) Numerical simulation of process dynamics during laser beam drilling with short pulses. Appl Phys A 106(4):885–891CrossRefGoogle Scholar
  9. Leitz K-H, Koch H, Otto A, Maaz A, Löwer T, Schmidt M (2012b) Numerical simulation of drilling with pulsed beams. Phys Procedia 39:881–892CrossRefGoogle Scholar
  10. Meijer J, Du K, Gillner A, Hoffmann D, Kovalenko VS, Masuzawa T, Ostendorf A, Poprawe R, Schulz W (2002) Laser machining by short and ultrashort pulses, state of the art and new opportunities in the age of the photons. CIRP Ann Manuf Technol 51(2):531–550CrossRefGoogle Scholar
  11. Ruf A (2004) Modellierung des perkussionsbohrens von metallen mit kurz- und ultrakurz gepulsten lasern [A model for the percussion drilling process of metals applying short- and ultrashort pulsed lasers]. Ph.D. Thesis, Universität Stuttgart, Herbert Utz Verlag, Munich (in German)Google Scholar
  12. Stoian R, Boyle M, Thoss A, Rosenfeld A, Korn G, Hertel IV (2003) Dynamic temporal pulse shaping in advanced ultrafast laser material processing. Appl Phys A 77(2):265–269Google Scholar
  13. Sugioka K, Meunier M, Piqué A (2010) Laser precision microfabrication. Springer, HeidelbergCrossRefGoogle Scholar
  14. von der Linde D, Sokolowski-Tinten K, Bialkowski J (1997) Laser-solid interaction in the femtosecond time regime. Appl Surf Sci 109(110):1–10CrossRefGoogle Scholar

Copyright information

© CIRP 2014

Authors and Affiliations

  1. 1.Institute of Photonic Technologies, Friedrich–Alexander–University Erlangen–NurembergErlangenGermany
  2. 2.Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich–Alexander–University Erlangen–NurembergErlangenGermany
  3. 3.Bayerisches Laserzentrum GmbHErlangenGermany