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A photonic approach to generating a phase-coded millimeter-wave (mm-wave) signal with large frequency tunability is proposed and demonstrated. Two ± second-order optical sidebands are generated by using a Mach-Zehnder modulator that is biased at the maximum transmission point and an optical notch filter. A polarization-maintaining fiber Bragg grating is then utilized to make the two sidebands orthogonally polarized. By sending the two orthogonally polarized sidebands to a polarization modulator, to which a phase-coding signal is applied, a frequency-quadrupled phase-coded mm-wave signal is generated. The generation of a phase-coded mm-wave signal with tunable frequencies at 40, 42, and 50 GHz is experimentally demonstrated. A pulse compression ratio of about 128 is achieved.
Published in:
Microwave and Wireless Components Letters, IEEE
(Volume:21
,
Issue:
12
)
Date of Publication: Dec. 2011
- Page(s):
- 694 - 696
- ISSN :
- 1531-1309
- INSPEC Accession Number:
- 12403866
- Digital Object Identifier :
- 10.1109/LMWC.2011.2170673
- Date of Publication :
- 24 October 2011
- Date of Current Version :
- 05 December 2011
- Issue Date :
- Dec. 2011
- Sponsored by :
- IEEE Microwave Theory and Techniques Society
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