Journal
OSA CONTINUUM
Volume 2, Issue 5, Pages 1746-1753Publisher
OPTICAL SOC AMER
DOI: 10.1364/OSAC.2.001746
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Funding
- National High-tech R&D Program of China [2015AA017101]
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Ultrafast speed, large angle, and high resolution optical beam steering using widely tunable lasers combined with properly cascaded transmission gratings has been demonstrated. An efficacy of 0.26 degrees/nm has been achieved in free space with three cascaded transmission gratings. Combined with angular magnification through a 4-f system, 28 degrees sweeping angle has been demonstrated with a 34 nm wavelength tuning. Through fast wavelength tuning, ultra-fast beam steering (>10(8)degrees/s) has been achieved with an angular resolution of about 0.15 degrees and a small beam divergence of below 0.06 degrees. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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