activity
20232026
most citedGeneralized few-shot transfer learning architecture for modeling the EDFA gain spectrum

3 citations · 6 across the 15 of their papers we have counts for

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10 papers · 1 filter

cs.NI2026

Radio-Optical Confluence in Intelligent Edge Networks

Akshita Gupta, Devika Dass, Agastya Raj +4

Challenges associated with densification of radio access networks are motivating exploration of more efficient and scalable architectures. We examine recent progress in one directi…

cs.NI2026

OSNR/GSNR Prediction in Brownfield Links via a DLM-Anchored Hybrid Physics/ML Model

Agastya Raj, Venkata Virajit Garbhapu, Hiroyuki Ishihara +5

We present a DLM-anchored hybrid physics/ML framework for brownfield optical links that accurately predicts per-channel power, OSNR, and GSNR. Calibrating span/ILA boundaries via D…

cs.NI2026

Fully Unsupervised Detection of Physical Contacts on Subsea Cables via State-of-Polarization Monitoring

Agastya Raj, Alvaro Doval, Tian Tian +2

We present a fully unsupervised Fast-Slow DSVDD detector for continuous State-of-Polarization monitoring on a deployed subsea cable. Trained without event labels, it ranks all five…

cs.NI2026

Spectrum Configuration Framework for Throughput Maximization in Open Systems with Roll-Off-Based QoT Optimization

Peyman Pahlevanzadeh, Venkata Virajit Garbhapu, Agastya Raj +3

We propose a spectrum-configuration framework for open and disaggregated optical systems that maximizes throughput while guaranteeing the quality of transmission (QoT) margins. The…

cs.NI2025★ 3 cited

Generalized few-shot transfer learning architecture for modeling the EDFA gain spectrum

Agastya Raj, Zehao Wang, Tingjun Chen +2

Accurate modeling of the gain spectrum in Erbium-Doped Fiber Amplifiers (EDFAs) is essential for optimizing optical network performance, particularly as networks evolve toward mult…

cs.NI2025★ 2 cited

Interference Detection in Spectrum-Blind Multi-User Optical Spectrum as a Service

Agastya Raj, Daniel C. Kilper, Marco Ruffini

With the growing demand for high-bandwidth, low-latency applications, Optical Spectrum as a Service (OSaaS) is of interest for flexible bandwidth allocation within Elastic Optical…

cs.NI2025

Real-Time Streaming Telemetry Based Detection and Mitigation of OOK and Power Interference in Multi-User OSaaS Networks

Agastya Raj, Devika Dass, Daniel C. Kilper +1

We present a framework to identify and mitigate rogue OOK signals and user-generated power interference in a multi-user Optical-Spectrum-as-a-Service network. Experimental tests on…

cs.NI2025

Transfer Learning for EDFA Gain Modeling: A Semi-Supervised Approach Using Internal Amplifier Features

Agastya Raj, Dan Kilper, Marco Ruffini

The gain spectrum of an Erbium-Doped Fiber Amplifier (EDFA) has a complex dependence on channel loading, pump power, and operating mode, making accurate modeling difficult to achie…

cs.NI2025

Interference Identification in Multi-User Optical Spectrum as a Service using Convolutional Neural Networks

Agastya Raj, Zehao Wang, Frank Slyne +3

We introduce a ML-based architecture for network operators to detect impairments from specific OSaaS users while blind to the users' internal spectrum details. Experimental studies…

cs.NI2023★ 1 cited

Self-Normalizing Neural Network, Enabling One Shot Transfer Learning for Modeling EDFA Wavelength Dependent Gain

Agastya Raj, Zehao Wang, Frank Slyne +3

We present a novel ML framework for modeling the wavelength-dependent gain of multiple EDFAs, based on semi-supervised, self-normalizing neural networks, enabling one-shot transfer…