Analyses of unintentional intensity modulation in all-fiber acousto-optic tunable filters

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We theoretically and experimentally analyze unintentional intensity modulation phenomena in two types of all- fiber acousto-optic tunable filters utilizing flexural and torsional acoustic waves. Output filter signal at a resonant wavelength shows time-varying oscillations with even-and odd-order harmonics of applied acoustic frequency, which are explained by two factors of static mode coupling and acoustic back reflection. The magnitudes of static coupling and acoustic reflection in our devices are estimated from the measured first and second harmonic modulation powers. (C) 2010 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2010-03
Language
English
Article Type
Article
Keywords

FREQUENCY SHIFTER; OPTICAL-FIBERS; BAND; PERFORMANCE; WAVES

Citation

OPTICS EXPRESS, v.18, no.5, pp.3985 - 3992

ISSN
1094-4087
DOI
10.1364/OE.18.003985
URI
http://hdl.handle.net/10203/20229
Appears in Collection
PH-Journal Papers(저널논문)
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