4 March 2014 Digital control of laser modes with an intra-cavity spatial light modulator
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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’.
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Sandile Ngcobo, Igor Litvin, Liesl Burger, 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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