Harmonic and Intermodulation Performance of Sagnac Fiber-Optic Interferometer

In this article, closed-form expressions are obtained for the amplitudes of the harmonic and intermodulation products generated when driving the fiber-optic Sagnac interferometer by a DC bias voltage plus an equal-amplitude two-tone signal. The results clearly show the strong dependence of the harmo...

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Bibliographic Details
Published in:Fiber and integrated optics 2011-01, Vol.30 (1), p.29-44
Main Author: Abuelma'atti, Muhammad T.
Format: Article
Language:English
Subjects:
Analog
Applied sciences
Bias
Circuit properties
Direct current
Electric currents
Electric potential
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber optic interferometers
Fiber optics
fiber-optic Sagnac interferometer
harmonics
Integrated optics. Optical fibers and wave guides
Interferometers
Intermodulation
Optical and optoelectronic circuits
Optical fibers
Voltage
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Description
Summary:In this article, closed-form expressions are obtained for the amplitudes of the harmonic and intermodulation products generated when driving the fiber-optic Sagnac interferometer by a DC bias voltage plus an equal-amplitude two-tone signal. The results clearly show the strong dependence of the harmonic and intermodulation performance on the DC bias voltage and/or the phase bias of the fiber-optic Sagnac interferometer. The results obtained suggest that the DC bias voltage and/or the phase bias play an important role in deciding the linearity of the fiber-optic Sagnac interferometer and, hence, its suitability for analog applications.
ISSN:0146-8030
1096-4681
DOI:10.1080/01468030.2010.527033