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A novel approach to generate continuously tunable microwave and millimeter-wave (mm-wave) signals is proposed and experimentally demonstrated based on an optical phase modulator and a Brillouin-assisted notch-filtering technique. The strong optical carrier of the phase modulated signal is deeply suppressed by using stimulated Brillouin scattering (SBS) in a dispersion-shifted-fiber ring while the sidebands keep unchanged. Therefore, only even-order electrical harmonics exist at the output of a photodetector. As this SBS-assisted carrier-filter is narrow bandwidth and wavelength-independent, a wavelength-flexible way of optical generation mm-wave signals can be successfully realized.
Published in:
Photonics Technology Letters, IEEE
(Volume:20
,
Issue:
24
)
Date of Publication: Dec.15, 2008
- Page(s):
- 2057 - 2059
- ISSN :
- 1041-1135
- INSPEC Accession Number:
- 10360766
- Digital Object Identifier :
- 10.1109/LPT.2008.2006195
- Product Type:
- Journals & Magazines
- Date of Publication :
- 31 October 2008
- Date of Current Version :
- 12 December 2008
- Issue Date :
- Dec.15, 2008
- Sponsored by :
- IEEE Photonics Society
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