Furukawa Electric has been granted a patent for an optical fiber featuring a glass core with a diameter of 7 to 10 µm and a glass cladding with an outer diameter under 100 µm. The cladding has a lower refractive index and a specific relative refractive-index difference. GlobalData’s report on Furukawa Electric gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
According to GlobalData’s company profile on Furukawa Electric, Battery management systems was a key innovation area identified from patents. Furukawa Electric's grant share as of July 2024 was 37%. Grant share is based on the ratio of number of grants to total number of patents.
Optical fiber with specific core and cladding properties
The granted patent US12072526B2 describes an innovative optical fiber designed for enhanced performance in telecommunications and data transmission. The optical fiber features a core portion made of glass, surrounded by a cladding portion with a lower refractive index. The cladding has an outer diameter of less than 100 µm, while the core diameter ranges from 7 µm to 10 µm, with a relative refractive-index difference between 0.32% and 0.40%. Notably, the cladding includes an adjacent region made of pure silica glass, positioned between the core and a non-adjacent region. The design stipulates that the ratio of the core diameter to the inner diameter of a trench layer must be three or greater, ensuring optimal light transmission characteristics.
Further claims detail specific parameters for the optical fiber, including a mode field diameter of 8.6 µm to 9.5 µm at a wavelength of 1310 nm, and a bending loss of no more than 5.3×10^-3 dB/m at a 60 mm bend diameter at 1550 nm. The optical fiber is also characterized by a zero-dispersion wavelength between 1300 nm and 1324 nm, with a dispersion slope not exceeding 0.092 ps/nm²/km. Additionally, the cable cutoff wavelength is specified to be equal to or shorter than 1260 nm, with some claims extending this cutoff to 1530 nm. These features collectively aim to improve the efficiency and reliability of optical fiber communications, making it suitable for advanced applications in the field.
To know more about GlobalData’s detailed insights on Furukawa Electric, buy the report here.
Data Insights
From
The gold standard of business intelligence.
Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.
GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
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.
