Title :
All-Optical Frequency Shifter Based on Stimulated Brillouin Scattering in an Optical Fiber
Author :
Chan, E.H.W. ; Minasian, Robert A.
Author_Institution :
Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia
Abstract :
A new optical frequency shifter that can shift the light frequency in the microwave or millimeter-wave frequency range is presented. It is based on the use of stimulated Brillouin scattering gain and loss spectrums in an optical fiber to suppress one sideband of a double-sideband suppressed carrier modulation signal while amplifying the other sideband. The new optical frequency shifter only involves optical components and is capable of operating over a wide frequency range with low spurious generation and with tunable capabilities. It can be also used as a single-sideband suppressed carrier modulator. Experimental results demonstrate a 20 GHz frequency shift with a 25 dB signal-to-noise ratio and a widely tunable frequency shifting operation.
Keywords :
microwave photonics; optical communication equipment; optical fibre losses; optical fibres; optical frequency conversion; optical modulation; optical tuning; radio-over-fibre; stimulated Brillouin scattering; SBS gain spectrum; SBS loss spectrum; all-optical frequency shifter; double-sideband suppressed carrier modulation signal; frequency 20 GHz; microwave frequency range; millimeter-wave frequency range; optical components; optical fiber; signal-to-noise ratio; single-sideband suppressed carrier modulator; stimulated Brillouin scattering; widely tunable frequency shifting operation; Frequency modulation; Optical fibers; Optical modulation; Optical pumping; Scattering; Optical frequency conversion; optical fiber communication; optical signal processing; optoelectronic devices;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2014.2312921
