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- W2047494037 abstract "Customizing the output beam shape from a laser invariably involves specialized optical elements in the form of apertures, diffractive optics and free-form mirrors. Such optics require considerable design and fabrication effort and suffer from the further disadvantage of being immutably connected to the selection of a particular spatial mode. Here we overcome these limitations with the first digital laser comprising an electrically addressed reflective phase-only spatial light modulator as an intra-cavity digitally addressed holographic mirror. The phase and amplitude of the holographic mirror may be controlled simply by writing a computer-generated hologram in the form of a grey-scale image to the device, for on-demand laser modes. We show that we can digitally control the laser modes with ease, and demonstrate real-time switching between spatial modes in an otherwise standard solid-state laser resonator. Our work opens new possibilities for the customizing of laser modes at source. Customizing the output from a laser is typically done by appropriate optical elements. Here Ngcobo et al.show that a digitally controlled holographic mirror placed within the laser cavity can be used to dynamically select the desired laser output modes." @default.
- W2047494037 created "2016-06-24" @default.
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- W2047494037 date "2013-08-02" @default.
- W2047494037 modified "2023-10-05" @default.
- W2047494037 title "A digital laser for on-demand laser modes" @default.
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- W2047494037 doi "https://doi.org/10.1038/ncomms3289" @default.
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