Photonic generation and wireless transmission of linearly/nonlinearly continuously tunable chirped millimeter-wave waveforms with high time-bandwidth product at W-band

J. W. Shi, F. M. Kuo, Nan Wei Chen, S. Y. Set, C. B. Huang, J. E. Bowers

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

We demonstrate a novel scheme for photonic generation of chirped millimeter-wave (MMW) pulse with ultrahigh time-bandwidth product (TBP). By using a fast wavelength-sweeping laser with a narrow instantaneous linewidth, wideband/high-power photonic transmitter-mixers, and heterodyne-beating technique, continuously tunable chirped MMW waveforms at the W-band are generated and detected through wireless transmission. Compared with the reported optical grating-based wavelength-to-time mapping techniques for chirped pulse generation, our approach eliminates the problem in limited frequency resolution of grating, which seriously limits the continuity, tunability, and TBP of the generated waveform. Furthermore, by changing the alternating current (AC) waveform of the driving signal to the sweeping laser, linearly or nonlinearly continuously chirped MMW pulse can be easily generated and switched. Using our scheme, linearly and nonlinearly chirped pulses with record-high TBPs (89-103 GHz/50 μs/7 × 10 5) are experimentally achieved.

Original languageEnglish
Article number6125208
Pages (from-to)215-223
Number of pages9
JournalIEEE Photonics Journal
Volume4
Issue number1
DOIs
StatePublished - 2012

Keywords

  • Microwave photonics
  • microwave photonics signal processing
  • photodetectors

Fingerprint

Dive into the research topics of 'Photonic generation and wireless transmission of linearly/nonlinearly continuously tunable chirped millimeter-wave waveforms with high time-bandwidth product at W-band'. Together they form a unique fingerprint.

Cite this