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- W2015706158 abstract "Laser diodes are an important optical pump source for achieving high luminous efficiencies (i.e., total projected lumens per watt of input power) for laser video projectors. The commercial viability of these projectors will rely on extremely stable, diode-pumped near infrared lasers and high- quality nonlinear crystals to generate the required powers of red, green and blue light. Since pulsed lasers achieve the high peak powers that lead to efficient nonlinear interactions, there is a compelling argument for projectors to use pulsed rather than cw infrared lasers to create the RGB primaries. A method of spatial light modulation compatible with pulsed light sources is acousto-optic line writing, by which the modulation for an entire row of pixels (i.e., line of video) is captured by a single pulse of light. This modulation scheme, however, requires that the laser(s) produce short pulses at high rep rate to display the full resolution of the input video signal. Diode-pumped Nd:YVO<SUB>4</SUB> lasers are well suited for variable resolution projectors for their ability to deliver short pulses (less than 20 ns) over a wide range of rep rates (up to 90 kHz). We describe in this paper how pulsed Nd:YVO<SUB>4</SUB> lasers and AO modulators, enable variable resolution laser projectors that can display 2xNTSC, 4xNTSC, VGA, SVGA, XGA, and SXGA video formats." @default.
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- W2015706158 date "1998-05-04" @default.
- W2015706158 modified "2023-10-14" @default.
- W2015706158 title "Diode-pumped vanadate lasers for variable-resolution video projectors" @default.
- W2015706158 doi "https://doi.org/10.1117/12.307600" @default.
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