Variable optical attenuator based on ion-exchange technology in glass

A thermooptic variable optical attenuator (VOA) based on the Mach-Zehnder interferometer principle was fabricated in glass by an ion-exchange technique. The thermooptical effect was reached via heating electrodes on the side of the Mach-Zehnder arms. The insertion loss of the device was 1 dB, the dy...

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Veröffentlicht in:	Journal of lightwave technology 2005-05, Vol.23 (5), p.1918-1922
Hauptverfasser:	Hurvitz, T., Ruschin, S., Brooks, D., Hurvitz, G., Arad, E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Arm Attenuation Attenuators Circuit properties Dynamic range Electric, optical and optoelectronic circuits Electrodes Electronics Energy consumption Exact sciences and technology Glass Heating Insertion loss Integrated optics. Optical fibers and wave guides Ion-exchange in glass Mach-Zehnder interferometer Mach-Zehnder interferometers Noise levels Optical and optoelectronic circuits Optical attenuators optical communication Optical losses Polarization Power consumption thermooptical effect variable optical attenuator (VOA)
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Beschreibung
Zusammenfassung:	A thermooptic variable optical attenuator (VOA) based on the Mach-Zehnder interferometer principle was fabricated in glass by an ion-exchange technique. The thermooptical effect was reached via heating electrodes on the side of the Mach-Zehnder arms. The insertion loss of the device was 1 dB, the dynamic range was 38 dB, maximal power consumption was 138 mW, and the polarization-dependent loss (PDL) was 0.2 dB/0.6 dB at 10 dB/20-dB attenuations, respectively.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2005.844496