All-fibre acousto-optic filter with low polarization sensitivity and no frequency shift
Yun, Seok Hyun, Richardson, D.J., Culverhouse, D.O. and Birks, T.A. (1997) All-fibre acousto-optic filter with low polarization sensitivity and no frequency shift. IEEE Photonics Technology Letters, 9, (4), 461-453. (doi:10.1109/68.559388).
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An acousto-optic tunable filter based on an all-fiber null coupler, exhibiting low polarization sensitivity and zero net frequency shift, is demonstrated. The polarization dependence has been eliminated by simultaneously applying two acoustic waves that independently satisfy the phase-matching condition for the two Eigen-polarization states. A simple double-pass arrangement is employed to exactly cancel the net frequency shift and to provide an enhanced spectral sidelobe suppression of better than -17 dB
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||11 Mar 2010|
|Last Modified:||06 Aug 2015 02:58|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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