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Published in: Optical and Quantum Electronics 11/2023

01-11-2023

Reduction of Rayleigh backscattered noise in bidirectional optical access link using Lorentzian-weight-functioned adaptive derivative equalization

Author: Yong-Yuk Won

Published in: Optical and Quantum Electronics | Issue 11/2023

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Abstract

This paper introduces a technique to mitigate the Rayleigh backscattered (RB) noise generated in optical access links. Based on digital signal processing (DSP), the proposed technique reduces RB noise by utilizing the Lorentzian distribution function as a weighting function and leveraging the property that the derivative of an analog waveform is significantly greater than that of a digital waveform. The experimental results confirm that the proposed technique yields an input signal-to-noise ratio (SNR) gain of 4 dB. An observed reduction of 4-dB in power penalty is achieved based on the 1st generation forward error correction (GFEC) bit error rate (BER) threshold when utilizing the proposed technique. Thus, based on the significant experimental results, it is confirmed that the proposed technique is highly effective in reducing RB noise.

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Metadata
Title
Reduction of Rayleigh backscattered noise in bidirectional optical access link using Lorentzian-weight-functioned adaptive derivative equalization
Author
Yong-Yuk Won
Publication date
01-11-2023
Publisher
Springer US
Published in
Optical and Quantum Electronics / Issue 11/2023
Print ISSN: 0306-8919
Electronic ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-023-05263-0

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