Birks, Timothy A., Farwell, Selina G., Russell, Phillip St.J. and Pannell, Christopher N.,
Fibre acousto-optic frequency shifter based on a null coupler
Culshaw, Brian and Jones, Julian D.C. (eds.)
In Tenth International Conference on Optical Fibre Sensors.
The International Society for Optical Engineering..
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A prototype all-fibre acousto-optic frequency shifter, based on a four-port coupler with a null maximum splitting ratio, is reported. Near 100% conversion with 30 dB sideband and carrier suppression is achieved for 1 mW of electrical drive power
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