Corning. has been granted a patent for a method of assembling a wavelength division multiplexing (WDM) cassette for fiber optic networks. The invention includes a structured arrangement of wavelength filters and optical fibers, utilizing mass fusion splicing to create an organized fiber stack within the cassette body. GlobalData’s report on Corning gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Corning, Ceramic membrane fuel cells was a key innovation area identified from patents. Corning's grant share as of July 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.
Wavelength division multiplexing (wdm) cassette assembly method
The granted patent US12072544B2 describes a wavelength division multiplexing (WDM) cassette designed to efficiently manage optical fibers and wavelength filters. The cassette comprises a body formed from two workpieces, each housing a plurality of wavelength filters. These filters are arranged such that their ends face opposite sides of the cassette body, allowing for the integration of optical fibers that extend from the filters. A key feature of this design is the mass fusion splice that connects the optical fibers from both workpieces, creating a main fiber loop. This loop is stored within the cassette in a twisted and folded configuration, forming multiple cassette loops that fit within the cassette body.
Further details of the patent highlight the structural organization of the wavelength filters, which are arranged side-by-side and secured within slots defined by dividing walls or ridges on the workpieces. The cassette body also includes tabs for securing the loops and a channel for a splice protector associated with the mass fusion splice. The design ensures that the length of the main fiber loop correlates with the physical dimensions of the cassette body, optimizing space and functionality. Overall, the patent outlines a compact and organized solution for managing optical fibers and wavelength filters in WDM applications.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
