Packaging structure and packaging method of edge couplers and fiber array

A packaging method of edge couplers and a fiber array, comprising:

• moving a cover of a fiber array, so that a butting face of the cover is accommodated in a step groove of a silicon substrate, and after a plurality of fibers in the fiber array pass through a plurality of lead channels in the cover in a one-to-one correspondence manner;
• coupling the plurality of fibers with a plurality of edge couplers arranged on the silicon substrate and extending to the step groove in a one-to-one correspondence manner;
• connecting two of the edge couplers located at two ends, first selecting two of the fibers in the middle and emitting red light into the two fibers respectively, then emitting detection light into one of the two fibers located at the two ends, connecting the other fiber to an optical power meter, and reading an optical power value displayed on the optical power meter;
• and
• moving the fiber array until the optical power value displayed on the optical power meter reaches its maximum, and fixedly connecting the cover to the silicon substrate.