Methods and devices for determination of core dependent loss in multi-core fiber transmission systems using core scrambling

Abstract

The various embodiments of the invention provide an optical transmission system (100) comprising an optical transmitter (11) configured to transmit data over an optical fiber transmission channel (13)comprising a multi-core fiber, said data being carried by optical signals, said optical signals propagating along the multi-core fiber according to two or more cores, said multi-core fiber being associated with fiber parameters and misalignment losses values, at least one scrambling device (133) being arranged in said optical fiber transmission channel (13) for scrambling said two or more cores according to a scrambling function, wherein the optical fiber transmission channel (13) comprises a system configuration device (17) configured to determine a core dependent loss value depending on thefiber parameters, at least one misalignment loss, a number of said at least one scrambling device (133), and the scrambling function.

Description

technical field [0001] The present invention relates generally to optical communications, and in particular to an apparatus and method for core dependent loss determination in a multi-core optical fiber implementing core scrambling. Background technique [0002] Over the past few decades, optical fibers have been widely used in optical transmission systems for transferring data (e.g. voice, multimedia, video) over distances ranging from less than one meter to thousands of kilometers. [0003] Optical fibers are optical waveguides that guide electromagnetic waves in the spectrum. Optical fibers include a transparent core surrounded by a transparent cladding material having a lower refractive index. After a series of internal reflections, the light travels in the fiber. Light carries data and allows long-distance transmission at a higher bandwidth than wire- or wireless-based communication systems. [0004] As Internet traffic increases, the amount of data traffic in optica...

AI Technical Summary

Problems solved by technology

However, random scrambling requires the installation of a large number of random scramblers, which introduces additional implementation complexity and cost on the transmission system

[0020] Although existing solutions are able to reduce crosstalk in multi-core fibers, they fail to enable estimation of core-dependent loss and prediction of performance behavior of optical transmission systems, which depend on the value of core-dependent loss

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