Optical fiber mounted photonic integrated circuit device for single mode optical fibers
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United States of America Patent
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Feb 20, 2018
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app pub date -
Feb 28, 2017
filing date -
Mar 25, 2016
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Abstract
The invention relates to an optical fiber mounted photonic integrated circuit device where the tolerance in the positioning of the coupling between a single mode optical fiber and an optical waveguide provided in the photonic integrated circuit device is increased. A second optical waveguide of which the cross-section of the core is in the form of a slab having a width that is greater than the mode diameter of the single mode optical fiber, and which is tapered in such a manner that the thickness of the core is reduced as the location is closer to the connection portion with the single mode optical fiber, is provided on the input/output end side of the first optical waveguide through which light propagates in such a manner that the inclined connection end surface of the single mode optical fiber is coupled to the upper surface of the second optical waveguide.
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