| CPC G02B 6/4212 (2013.01) [G02B 6/4243 (2013.01); G02B 6/43 (2013.01)] | 8 Claims |
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1. A packaging structure of edge couplers and a fiber array, comprising:
a silicon substrate, having a main body portion and an edge portion connected to a side of the main body portion, wherein the main body portion and the edge portion form a step groove;
edge couplers, wherein a plurality of edge couplers are arranged in the main body portion, and an end of each of the edge couplers extends to the step groove; and
a fiber array, comprising a cover and a plurality of fibers,
wherein at least a part of the cover is accommodated in the step groove,
wherein the cover has a butting face facing the plurality of edge couplers and a plurality of lead channels that protrude through the cover and extend to the butting face, and
wherein the plurality of fibers correspondingly pass through the plurality of lead channels and are then coupled with the plurality of edge couplers at the butting face;
wherein the step groove has a first step face and a second step face that are perpendicular to each other, the main body portion has a first surface connected to the first step face, the edge couplers are arranged on the first surface, and the edge portion has a second surface connected to the second step face, in a direction perpendicular to the second step face, the first surface is connected to the side of the first step face deviating from the second step face, in a direction perpendicular to the first step face, the second surface is connected to the side of the second step face deviating from the first step face;
wherein the cover is located on a side on which the step groove and the second surface are located, and the cover comprises a first cover plate and a second cover plate, wherein the first cover plate has a first connection face that is opposite and spaced apart from the second surface, and the first cover plate further has a second connection face connected to the first connection face, wherein the second cover plate has the butting face and a third connection face connected to the butting face, and the third connection face is connected to the second connection face,
wherein a plurality of lead grooves are formed on the third connection face in a one-to-one correspondence with the plurality of fibers, the lead grooves extend to the butting face, and the second connection face and side walls of the lead grooves jointly define the lead channels; and
wherein an end of the third connection face connected to the butting face is accommodated in the step groove.
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