Polarization-Independent All-Fiber Acousto-Optic Tunable Filter Using Torsional Acoustic Wave

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The intrinsic polarization dependence of an all-fiber tunable wavelength filter based on polarization coupling by torsional acoustic wave is eliminated by employing a fiber loop configuration. In the fiber loop, two orthogonal polarizations split from input light propagate the single acousto-optic interaction region in opposite directions before being recombined to produce a polarization-independent filter spectrum. The polarization-dependent loss was estimated to be less than 0.1 and 0.3 dB within passband in bandpass and notch type filters, respectively.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2010-04
Language
English
Article Type
Article
Keywords

FREQUENCY-SHIFT; BANDPASS FILTER; NARROW-BAND; SENSITIVITY

Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.22, no.8, pp.523 - 525

ISSN
1041-1135
DOI
10.1109/LPT.2010.2041920
URI
http://hdl.handle.net/10203/19811
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
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