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A flexibly tunable multi-frequency microwave source is presented based on optical heterodyning between the intensity-modulated optical carrier (incorporated four-wave mixing equalisation and stabilisation) and the frequency-shifted Stokes light generated by fibre stimulated Brillouin scattering. About 20 microwave frequencies centred at 10.77 or 21.62 GHz are experimentally observed. The central frequency and the frequency spacing of the multi-frequency microwave source can be freely tuned by changing the frequency shift of the beating optical waves and the driving frequency on the modulator.
References
-
-
1)
-
X. Liu
.
Multiple four-wave mixing self-stability in optical fibers.
Phys. Rev. A
,
013811/1 -
013811/9
-
2)
-
N.J. Gomes
.
Radio-over-fiber transport for the support of wireless broadband services.
J. Opt. Netw.
,
156 -
178
-
3)
-
Y. Kim
.
Optical multicarrier generator for radio-over-fiber systems.
Opt. Express
,
1068 -
1076
-
4)
-
H. Ou
.
Microwave-photonic frequency doubling utilising phase modulator and fibre Bragg grating.
Electron. Lett.
,
131 -
133
-
5)
-
Z. Deng ,
J. Yao
.
Photonic generation of microwave signal using a rational harmonic mode-locked fiber ring laser.
IEEE Trans. Microw. Theory Tech.
,
763 -
767
-
6)
-
J.J. O'Reilly
.
Optical generation of very narrow linewidth millimetre-wave signals.
Electron. Lett.
,
2309 -
2311
-
7)
-
S. Gao
.
Photonic generation of microwave/millimeter-wave sources without cavity or modulation using fiber stimulated Brillouin scattering.
Microw. Opt. Technol. Lett.
,
1203 -
1206
-
8)
-
K.-H. Lee ,
W.-Y. Choi
.
Harmonic signal generation and frequency upconversion using selective sideband Brillouin amplification in single-mode fiber.
Opt. Lett.
,
1686 -
1688
-
9)
-
X. Chen
.
Photonic generation of microwave signal using a dual-wavelength single-longitudinal-mode fiber ring laser.
IEEE Trans. Microw. Theory Tech.
,
804 -
809
-
10)
-
J. Genest
.
Microwave signals generated by optical heterodyne between injection-locked semiconductor lasers.
IEEE J. Quantum Electron.
,
989 -
998
-
11)
-
M. Brunel
.
High-spectral purity RF beat note generated by a two-frequency solid-state laser in a dual thermooptic and electrooptic phase-locked loop.
IEEE Photonics Technol. Lett.
,
870 -
872
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