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A multi-layer neural network is employed to learn the mapping between Raman gain profile and pump powers and wavelengths. The learned model predicts with high-accuracy, low-latency and low-complexity the pumping setup for any gain profile.

Applied Physics · Physics 2018-11-27 D. Zibar , A. Ferrari , V. Curri , A. Carena

A machine learning method for prediction of Raman gain and noise spectra is presented: it guarantees high-accuracy (RMSE < 0.4 dB) and low computational complexity making it suitable for real-time implementation in future optical networks…

Signal Processing · Electrical Eng. & Systems 2019-05-03 Ann Margareth Rosa Brusin , Vittorio Curri , Darko Zibar , Andrea Carena

A machine learning framework for Raman amplifier design is experimentally tested. Performance in terms of maximum error over the gain profile is investigated for various fiber types and lengths, demonstrating highly-accurate designs.

Optical communication systems are always evolving to support the need for ever-increasing transmission rates. This demand is supported by the growth in complexity of communication systems which are moving towards ultra-wideband transmission…

We experimentally validate a real-time machine learning framework, capable of controlling the pump power values of Raman amplifiers to shape the signal power evolution in two-dimensions (2D): frequency and fiber distance. In our setup,…

Emerging Technologies · Computer Science 2022-12-14 Mehran Soltani , Francesco Da Ros , Andrea Carena , Darko Zibar

The problem of Raman amplifier optimization is studied. A differentiable interpolation function is obtained for the Raman gain coefficient using machine learning (ML), which allows for the gradient descent optimization of…

Signal Processing · Electrical Eng. & Systems 2022-06-16 Metodi Plamenov Yankov , Francesco Da Ros , Uiara Celine de Moura , Andrea Carena , Darko Zibar

We present a Convolutional Neural Network (CNN) architecture for inverse Raman amplifier design. This model aims at finding the pump powers and wavelengths required for a target signal power evolution, both in distance along the fiber and…

Signal Processing · Electrical Eng. & Systems 2021-03-08 Mehran Soltani , Francesco Da Ros , Andrea Carena , Darko Zibar

We present a machine learning (ML) framework for designing desired signal power profiles over the spectral and spatial domains in the fiber span. The proposed framework adjusts the Raman pump power values to obtain the desired…

Signal Processing · Electrical Eng. & Systems 2022-06-22 Mehran Soltani , Francesco Da Ros , Andrea Carena , Darko Zibar

This paper presents an efficient numerical method for calculating spatial power profiles of both signal and pump with significant Interchannel Stimulated Raman Scattering (ISRS) and backward Raman amplification in multiband systems. This…

Signal Processing · Electrical Eng. & Systems 2025-04-09 Yanchao Jiang , Jad Sarkis , Stefano Piciaccia , Fabrizio Forghieri , Pierluigi Poggiolini

We experimentally validate a machine learning-enabled Raman amplification framework, capable of jointly shaping the signal power evolution in two domains: frequency and fiber distance. The proposed experiment addresses the amplification in…

Machine Learning · Computer Science 2022-06-16 Mehran Soltani , Francesco Da Ros , Andrea Carena , Darko Zibar

Throughput optimization of optical communication systems is a key challenge for current optical networks. The use of gain-flattening filters (GFFs) simplifies the problem at the cost of insertion loss, higher power consumption and…

Machine Learning · Computer Science 2021-10-01 Metodi Plamenov Yankov , Pawel Marcin Kaminski , Henrik Enggaard Hansen , Francesco Da Ros

As data transmission demands grow, long-haul optical transmission links face increasing pressure to increase their throughput. Expanding usable bandwidth through Ultra-Wide Band (UWB) systems has become the primary strategy for increasing…

Signal Processing · Electrical Eng. & Systems 2024-11-20 Jad Sarkis , Yanchao Jiang , Pierluigi Poggiolini

We propose a n input parameter refinement scheme for the physics-based Raman amplifier model. Experiments over C+L band are conducted. Results show the scheme can lower the physical model's maximum estimation error by 2.13 dB.

Optics · Physics 2024-05-31 Yihao Zhang , Xiaomin Liu , Qizhi Qiu , Yichen Liu , Lilin Yi , Weisheng Hu , Qunbi Zhuge

Cascades of a machine learning-based EDFA gain model trained on a single physical device and a fully differentiable stimulated Raman scattering fiber model are used to predict and optimize the power profile at the output of an experimental…

Signal Processing · Electrical Eng. & Systems 2020-09-14 Metodi P. Yankov , Uiara Celine de Moura , Francesco Da Ros

Owing to the complicated characteristics of 5G communication system, designing RF components through mathematical modeling becomes a challenging obstacle. Moreover, such mathematical models need numerous manual adjustments for various…

Signal Processing · Electrical Eng. & Systems 2021-06-16 Po-Yu Chen , Hao Chen , Yi-Min Tsai , Hsien-Kai Kuo , Hantao Huang , Hsin-Hung Chen , Sheng-Hong Yan , Wei-Lun Ou , Chia-Ming Cheng

We propose a transfer learning-enabled Transformer framework to simultaneously realize accurate modeling and Raman pump design in C+L-band systems. The RMSE for modeling and peak-to-peak GSNR variation/deviation is within 0.22 dB and…

Signal Processing · Electrical Eng. & Systems 2025-10-21 Jiaming Liu , Rui Wang , JinJiang Li , Hong Lin , Jing Zhang , Kun Qiu

Based on the physical features of Raman amplification, we propose a three-step modelling scheme based on neural networks (NN) and linear regression. Higher accuracy, less data requirements and lower computational complexity are demonstrated…

Machine Learning · Computer Science 2022-06-28 Yihao Zhang , Xiaomin Liu , Yichen Liu , Lilin Yi , Weisheng Hu , Qunbi Zhuge

Through the probing of light-matter interactions, Raman spectroscopy provides invaluable insights into the composition, structure, and dynamics of materials, and obtaining such data from portable and cheap instruments is of immense…

Chemical Physics · Physics 2024-07-03 Vikas Yadav , Abhay Kumar Tiwari , Soumik Siddhanta

This study, conducted in 2017, explores the use of Machine learning algorithms to predict Characteristics of Transmission Lines such as Impedance or resonance frequency using design parameters of Transmission Lines. Using formulas and…

Signal Processing · Electrical Eng. & Systems 2024-06-10 Bharath Balaji , S. Raghavan

This paper presents a machine learning-accelerated optimization framework for RF power amplifier design that reduces simulation requirements by 65% while maintaining $\pm0.4$ dBm accuracy for the majority of the modes. The proposed method…

Machine Learning · Computer Science 2025-07-21 Abhishek Sriram , Neal Tuffy
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