Polarization insensitive variable optical attenuator
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United States of America Patent
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Issued Date -
Aug 15, 2002
app pub date -
Feb 13, 2002
filing date -
Feb 14, 2001
priority date (Note) -
Abandoned
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Abstract
An apparatus is disclosed for an electrically variable optical attenuator. The apparatus is comprised of an Electrically Switchable Bragg Grating device and a polarization-converting reflector. The polarization-converting reflector may be a one-quarter-wave retardation plate or a 45-degree Faraday rotation plate in combination with a mirror. The electrically variable optical attenuator is suited for use in fiber optic communications systems.
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