Ciena. has filed a patent for systems and methods that characterize optical fibers using nonlinear measurements of shaped Amplified Spontaneous Emission (ASE) signals. The method involves receiving ASE signals, measuring their spectral shape after propagation through the fiber, and determining fiber parameters based on the measured spectral shape. GlobalData’s report on Ciena 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 Ciena, Data center optical networking was a key innovation area identified from patents. Ciena's grant share as of January 2024 was 76%. Grant share is based on the ratio of number of grants to total number of patents.
Optical fiber characterization using nonlinear measurement of ase signal
The patent application (Publication Number: US20240031022A1) describes a method and system for analyzing an Amplified Spontaneous Emission (ASE) signal transmitted over an optical fiber. The method involves receiving the ASE signal, measuring the broadened spectral shape of the signal due to propagation over the fiber, and determining various parameters of the optical fiber based on this analysis. These parameters can include dispersion, nonlinearity, and fiber type, which can be crucial for optimizing the performance of optical systems operating over the fiber.
Furthermore, the system described in the patent application includes an optical receiver connected to the optical fiber and circuitry for measuring the spectral shape of the ASE signal and determining the fiber parameters. The system enables simultaneous measurements of dual polarizations over the fiber and can be used in various applications such as optical amplifiers and networks. By accurately determining the fiber parameters, the system can account for unknown losses or mixed fiber types, providing valuable insights for modeling, link budgeting, and performance optimization of optical systems. Overall, the method and system outlined in the patent application offer a comprehensive approach to analyzing and optimizing optical fiber networks for enhanced performance and efficiency.
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