All-fiber microendoscopic polarization sensing at single-photon level aided by deep-learning

Key Points

• The method achieves accurate polarization measurement at the single-photon level, significantly enhancing sensor performance in challenging environments.
• Improvements in accuracy were demonstrated, resolving polarization measurements in difficult conditions using sophisticated algorithms.
• An all-fiber system utilizing intermodal interaction was employed, leveraging deep-learning to enhance analysis and processing effectiveness.
• This advancement in sensing technology highlights potential applications across various fields, necessitating further exploration and validation in practical scenarios.