Four port fused taper acousto-optic devices using standard singlemode telecommunications fibre

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Four port fused taper acousto-optic devices using standard singlemode telecommunications fibre

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Published

Tapered fibre null couplers are used to form high performance acousto-optic devices for 1.55 µm operation. Standard singlemode telecommunications fibre is used throughout, yielding devices with identical ports. The two devices described are shown to have acousto-optic resonances at 1.5 and 10.6 MHz, with greater than 99% acousto-optic coupling for RF drive powers of 0.5 and 2.6 mW.

Inspec keywords: acousto-optical devices; optical fibre couplers; optical fibres

Other keywords: tapered fibre null couplers; 1.5 MHz; 1.55 micrometre; 10.6 MHz; acousto-optic resonances; singlemode telecommunications fibre; 2.6 mW; RF drive powers; 0.5 mW; fused taper acousto-optic devices; acousto-optic coupling

Subjects: Acousto-optical devices; Fibre optics

References

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      • Blake, J., Siemson, P.: `Practical compact high performance fibre optic frequency shifter', OFS-9, 1993, p. 301–304.
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      • T.A. Birks , P.St.J. Russel , C.N. Pannel . Low power acousto-optic device based on a tapered single mode fibre. IEEE Photonics Technol. Lett. , 725 - 727
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      • D.A. Smith , J. Johnson . Sidelobe suppression in an acoustooptic filter with a raised cosine interactionstrength. Appl. Phys. Lett. , 1025 - 1027
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      • D.B. Mortimore . Wavelength-flattenened fused couplers. Electron. Lett. , 742 - 743
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