Photonic generation and detection of W-band chirped millimeter-wave pulses for radar

Jim Wein Lin, Chun Liang Lu, H. P. Chuang, F. M. Kuo, Jin Wei Shi, Chen Bin Huang, Ci Ling Pan

研究成果: 雜誌貢獻期刊論文同行評審

14 引文 斯高帕斯(Scopus)

摘要

Based on the frequency-to-time mapping approach, we generate frequency-modulated millimeter-wave (MMW) pulses with central frequencies up to the W-band by a shaped optical pulse excitation of an MMW photonic transmitter with an ultrawide band photodiode as its key component. A coherent detection is achieved via a terahertz time-domain spectroscopic setup. Two different kinds of chirped MMW waveforms are generated; one is a linearly chirped sinusoidal pulse and the other is produced by a frequency-stepped modulation. Through appropriate optical spectral design, the frequency-chirped MMW pulses with instantaneous frequencies sweeping from 120 to 60 GHz, and a time-bandwidth product of ∼25 is experimentally demonstrated.

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文章編號6225421
頁(從 - 到)1437-1439
頁數3
期刊IEEE Photonics Technology Letters
24
發行號16
DOIs
出版狀態已出版 - 2012

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