# PIDT: Physics-Informed Digital Twin for Optical Fiber Parameter Estimation

arXiv: https://arxiv.org/abs/2601.07436 · HTML: https://mlsanity.com/paper/2601.07436/

## Key facts

- No citing papers in the map yet (data through 14 Oct 2026).
- Builds on 1 of its 3 references that are in the map.
- First posted on arXiv 12 Jan 2026.

## Builds on (most cited first, 1 of 1)

- [DeepONet: Learning nonlinear operators for identifying differential equations based on the universal approximation theorem of operators](https://mlsanity.com/paper/1910.03193/) (2019)

## Abstract (arXiv)

We propose physics-informed digital twin (PIDT): a fiber parameter estimation approach that combines a parameterized split-step method with a physics-informed loss. PIDT improves accuracy and convergence speed with lower complexity compared to previous neural operators.