期刊
IEEE PHOTONICS JOURNAL
卷 5, 期 1, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2013.2238664
关键词
Microelectromechanical devices; microwave generation; spatial light modulators
资金
- DARPA Young Faculty Award [66001-10-1-4036]
- DARPA RADER Program
- EU [PIRG07-GA-2010-268370]
We demonstrate fast optical arbitrary waveform generation by using the MEMS digital micromirror arrays. The desired radio-frequency waveforms are achieved by properly shaping the spectrum of the broadband optical source via using micromirror arrays as a digital spatial light modulator preceded by wavelength-to-time mapping through the dispersive medium. We obtain up to 280-MHz sawtooth and 200-MHz square waveforms that can be controlled by using 1024 x 768 mirror arrays in the preliminary experimental results. Based on currently available digital mirror technologies, we estimate that arbitrary waveforms up to 1-GHz rate and reconfigurable in similar to 30 mu s are achievable by using the proposed approach.
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