Optical attenuator and fabrication method thereof

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United States of America Patent

PATENT NO 9946023
SERIAL NO

14818453

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Abstract

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An optical attenuator and/or optical terminator is provided. The device includes an optical channel having two regions with different optical properties, such as an undoped silicon region which is less optically absorptive and a doped silicon region which is more optically absorptive. Other materials may also be used. A facet at the interface between the two regions is oriented at a non-perpendicular angle relative to a longitudinal axis of the channel. The angle can be configured to mitigate back reflection. Multiple facets may be included between different pairs of regions. The device may further include curved and/or tapers to further facilitate attenuation and/or optical termination.

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Patent Owner(s)

  • HUAWEI TECHNOLOGIES CO. LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Celo, Dritan Nepean, CA 17 110
Dumais, Patrick Ottawa, CA 30 400

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