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 › peer-review

34 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 Sept 2004

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title = "Compact optical system for pulse-to-pulse laser beam quality measurement and applications in laser machining",

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.",

author = "Lambert, {Robert W.} and Rodolphe Cort{\'e}s-Mart{\'i}nez and Waddie, {Andrew J.} and Shephard, {Jonathan D.} and Taghizadeh, {Mohammad R.} and Greenaway, {Alan H.} and Hand, {Duncan P.}",

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AU - Lambert, Robert W.

AU - Cortés-Martínez, Rodolphe

AU - Waddie, Andrew J.

AU - Shephard, Jonathan D.

AU - Taghizadeh, Mohammad R.

AU - Greenaway, Alan H.

AU - Hand, Duncan P.

PY - 2004/9/10

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N2 - 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.

AB - 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.

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JO - Applied Optics

JF - Applied Optics

IS - 26

ER -

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

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