Processing parameter and resource sharing architecture for superchannel based transmission systems

Abstract

Disclosed is a receiver for receiving an optical signal comprising a plurality of carriers within a predetermined frequency band. The receiver comprises means for sampling and converting each of the carriers into a set of corresponding digital signals, and a digital processing unit for processing said digital signals of said set of digital signals such as to mitigate transmission impairments of the corresponding optical carriers based on corresponding processing parameters. The digital processing unit is configured for determining such processing parameters by carrying out a corresponding parameter derivation procedure based on one of the digital signals of said set of digital signals. The processing unit is configured for sharing thus determined processing parameters for processing of other digital signals among said set of digital signals based on said shared determined processing parameters, or processing parameters derived from said shared determined processing parameters.

Description

technical field [0001] The invention relates to the field of optical data transmission. Crucially, the present invention relates to a receiver for receiving an optical signal comprising a plurality of carriers, and a method of related reception. Background technique [0002] In optical networks using associated carriers, currently available data transfer rates are on the order of 100 Gb / s per channel. Such as figure 1 As indicated in (a), a data transfer rate of 100 Gb / s can be achieved eg using polarization division multiplexed quadrature phase shift keying (PM-QPSK) with a symbol rate of 30 Gbaud. exist figure 1 (a) to figure 1 In (e), the horizontal axis represents frequency, and the vertical axis represents signal power. [0003] In order to increase the data transmission rate, in principle, higher order modulation formats or higher baud rate transmission systems can be utilized. For example, if figure 1 As indicated in (b), a data transmission rate of 400Gb / s can...

AI Technical Summary

Problems solved by technology

when used as figure 1 (d) and figure 1 When multiple channels are shown in (e), although the multiple channels are referred to as "one channel" from the network point of view, the digital processing described above is still required for each of the superchannel's carriers, resulting in further increased demands on processing power and power consumption

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