Intracavity beam shaping using digital holograms in continuous-wave-diode-pumped Nd: YAG laser module

Teboho Bell; Chemist Mabena; Sandile Ngcobo

doi:10.1117/12.2609630

4 March 2022 Intracavity beam shaping using digital holograms in continuous-wave-diode-pumped Nd: YAG laser module

Teboho Bell, Chemist Mabena, Sandile Ngcobo

Proceedings Volume 11980, Solid State Lasers XXXI: Technology and Devices; 1198009 (2022) https://doi.org/10.1117/12.2609630
Event: SPIE LASE, 2022, San Francisco, California, United States

Conference Poster

Abstract

This paper presents an intra-cavity beam-shaping technique using digital holograms in a continuous-wave (CW) diode-pumped Nd: YAG laser module. It shows that with the aid of digital holograms, the intensity distribution of the laser output can be modified to various optical beam shapes such as Laguerre-Gaussian (LGp;l) and Hermite-Gaussian (HGm;n). We used digital holograms that were encoded with amplitude masks that matched the desired laser output beam shape, LGp;l and HGm;n modes of different orders p, l and m, n, respectively. The research demonstrated the possibility of using digital lasers to simulate optical elements to pursue advanced laser material processing.

Conference Presentation

Citation Download Citation

Teboho Bell, Chemist Mabena, and Sandile Ngcobo "Intracavity beam shaping using digital holograms in continuous-wave-diode-pumped Nd: YAG laser module", Proc. SPIE 11980, Solid State Lasers XXXI: Technology and Devices, 1198009 (4 March 2022); https://doi.org/10.1117/12.2609630

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