Fiber optic high-quality Nd:YAG beam delivery for materials processing

Duncan P. Hand; Daoning Su; Mohammed Naeem; Julian D. C. Jones

doi:10.1117/1.600923

1 February 1996 Fiber optic high-quality Nd:YAG beam delivery for materials processing

Duncan P. Hand, Daoning Su, Mohammed Naeem, Julian D. C. Jones

Optical Engineering, Vol. 35, Issue 2, (February 1996). https://doi.org/10.1117/1.600923

Optical fibers of 50-µm core diameter are investigated for high-quality beam delivery of moderate power (30 W cw) Nd:YAG laser light. The fiber output near-field profile is important for materials processing applications, but is dependent on the modal distribution within the fiber, together with any intermodal interference. Launch optics design, mode-coupling, and modulation techniques are investigated as methods of controlling this beam profile, together with any associated beam quality (M2) changes. As an example application, high-precision, small kerfwidth cutting of stainless steel is demonstrated.

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Duncan P. Hand, Daoning Su, Mohammed Naeem, and Julian D. C. Jones "Fiber optic high-quality Nd:YAG beam delivery for materials processing," Optical Engineering 35(2), (1 February 1996). https://doi.org/10.1117/1.600923

Published: 1 February 1996

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