A DC to multigigabit/s polarization-independent modulator based on a Sagnac interferometer

A DC to multigigabit/s polarization-independent modulator based on a Sagnac interferometer

A broadband, electrically controlled polarization-independent intensity modulator (PLM) based on a Sagnac interferometer is presented. Influences from asymmetric modulation and traveling wave effects are analyzed and methods to eliminate these effects are proposed. Compared to Mach-Zehnder interfero...

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Veröffentlicht in:Journal of lightwave technology 1997-11, Vol.15 (11), p.2166-2171
Hauptverfasser: Xiaojun Fang, Ji, H., Pelz, L.J., Demarest, K.R., Allen, C.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
High speed optical techniques
Integrated optics. Optical fibers and wave guides
Intensity modulation
Optical and optoelectronic circuits
Optical control
Optical fiber polarization
Optical interferometry
Optical modulation
Optical polarization
Optical sensors
Optical transmitters
Sagnac interferometers
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Beschreibung
Zusammenfassung:A broadband, electrically controlled polarization-independent intensity modulator (PLM) based on a Sagnac interferometer is presented. Influences from asymmetric modulation and traveling wave effects are analyzed and methods to eliminate these effects are proposed. Compared to Mach-Zehnder interferometer-based modulators, this modulator is independent of the input polarization state and less sensitive to ambient perturbations due to its reciprocity property. A prototype modulator operating at 1 and 2.488 Gb/s modulation rates is demonstrated.
ISSN:0733-8724
1558-2213
DOI:10.1109/50.641538