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Proceedings Paper

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

Paper Details

Date Published: 4 March 2014
PDF: 5 pages
Proc. SPIE 8960, Laser Resonators, Microresonators, and Beam Control XVI, 89601X (4 March 2014); doi: 10.1117/12.2038927
Show Author Affiliations
Sandile Ngcobo, Council for Scientific and Industrial Research (South Africa)
Univ. of KwaZulu–Natal (South Africa)
Igor Litvin, Council for Scientific and Industrial Research (South Africa)
Liesl Burger, Council for Scientific and Industrial Research (South Africa)
Andrew Forbes, Council for Scientific and Industrial Research (South Africa)
Univ. of KwaZulu-Natal (South Africa)


Published in SPIE Proceedings Vol. 8960:
Laser Resonators, Microresonators, and Beam Control XVI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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