Optical waveguide device and module
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United States of America Patent
Stats
-
Jun 20, 2017
Grant Date -
Jul 23, 2015
app pub date -
Mar 26, 2015
filing date -
Nov 26, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a waveguide device, unnecessary optical power is appropriately terminated. According to an embodiment of the present invention, the waveguide device has a termination structure filled with a light blocking material to terminate light from a waveguide end. In the termination structure, a cladding and a core are removed to form a groove on an optical waveguide. The groove is filled with a material (light blocking material) that attenuates the intensity of light. Thus, light input to the termination structure is attenuated by the light blocking material, suppressing crosstalk which possibly effects on other optical devices. Thus, such a termination structure can restrain crosstalk occurred in optical devices integrated in the same substrate and can also suppress crosstalk which possibly effects on any other optical device connected directly to the substrate.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- G02B Class
- 9095 Applications Filed
- 7457 Patents Issued To-Date
- 82 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G02B Class
- 22.62 % this patent is cited more than
- 8 Age
Maintenance Fees
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|---|---|---|---|---|
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