Compact optical system for pulse-to-pulse laser beam quality measurement and applications in laser machining

Robert W. Lambert; Rodolphe Cortés-Martínez; Andrew J. Waddie; Jonathan D. Shephard; Mohammad R. Taghizadeh; Alan H. Greenaway; Duncan P. Hand

doi:10.1364/AO.43.005037

Compact optical system for pulse-to-pulse laser beam quality measurement and applications in laser machining

Robert W. Lambert, Rodolphe Cortés-Martínez, Andrew J. Waddie, Jonathan D. Shephard, Mohammad R. Taghizadeh, Alan H. Greenaway, Duncan P. Hand

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article

31 Citations (Scopus)

Abstract

Fluctuations in beam quality (M²) have been observed on a pulse-to-pulse basis from an industrial Nd:YAG laser. This Was achieved with a compact multiplane imaging method incorporating quadratically distorted diffraction gratings, which enabled simultaneous imaging of nine planes on a single CCD array. With this system, we measured across a range of beam qualities with an associated error (in M² variation) of the order of 0.7%. Application of the system to fiber-optic beam delivery and laser drilling is demonstrated. © 2004 Optical Society of America.

Original language	English
Pages (from-to)	5037-5046
Number of pages	10
Journal	Applied Optics
Volume	43
Issue number	26
DOIs	https://doi.org/10.1364/AO.43.005037
Publication status	Published - 10 Sep 2004

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Lambert, R. W., Cortés-Martínez, R., Waddie, A. J., Shephard, J. D., Taghizadeh, M. R., Greenaway, A. H., & Hand, D. P. (2004). Compact optical system for pulse-to-pulse laser beam quality measurement and applications in laser machining. Applied Optics, 43(26), 5037-5046. https://doi.org/10.1364/AO.43.005037

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abstract = "Fluctuations in beam quality (M2) have been observed on a pulse-to-pulse basis from an industrial Nd:YAG laser. This Was achieved with a compact multiplane imaging method incorporating quadratically distorted diffraction gratings, which enabled simultaneous imaging of nine planes on a single CCD array. With this system, we measured across a range of beam qualities with an associated error (in M2 variation) of the order of 0.7%. Application of the system to fiber-optic beam delivery and laser drilling is demonstrated. {\textcopyright} 2004 Optical Society of America.",

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Compact optical system for pulse-to-pulse laser beam quality measurement and applications in laser machining. / Lambert, Robert W.; Cortés-Martínez, Rodolphe; Waddie, Andrew J.; Shephard, Jonathan D.; Taghizadeh, Mohammad R.; Greenaway, Alan H.; Hand, Duncan P.

In: Applied Optics, Vol. 43, No. 26, 10.09.2004, p. 5037-5046.

Research output: Contribution to journal › Article

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