Digital control of laser modes with an intra-cavity spatial light modulator

Sandile Ngcobo; Igor Litvin; Liesl Burger; Andrew Forbes

doi:10.1117/12.2038927

4 March 2014 Digital control of laser modes with an intra-cavity spatial light modulator

Sandile Ngcobo, Igor Litvin, Liesl Burger, Andrew Forbes

Author Affiliations +

Proceedings Volume 8960, Laser Resonators, Microresonators, and Beam Control XVI; 89601X (2014) https://doi.org/10.1117/12.2038927
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

In this paper we outline a simple laser cavity which produces customised on-demand digitally controlled laser modes by replacing the end-mirror of the cavity with an electrically addressed reflective phase-only spatial light modulator as a digital addressed holographic end-mirror. We show that on-demand digitally controlled laser modes are possible by changing the phase and amplitude of the computer generated hologram in a form of a grey-scale image on the holographic mirror. We demonstrate that customised digitally controlled laser modes can be generated on-demand by switching to several different spatial modes in real-time with the first the ‘digital laser’.

Citation Download Citation

Sandile Ngcobo, Sandile Ngcobo, Igor Litvin, Igor Litvin, Liesl Burger, Liesl Burger, Andrew Forbes, Andrew Forbes, "Digital control of laser modes with an intra-cavity spatial light modulator", Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 89601X (4 March 2014); doi: 10.1117/12.2038927; https://doi.org/10.1117/12.2038927

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