# Full control of polarization in tapered optical nanofibers

## TL;DR

This paper presents a method to precisely control the polarization in tapered optical nanofibers using scattered light analysis, achieving over 95% accuracy in polarization management.

## Contribution

A novel protocol utilizing dual-angle scattered light analysis for full polarization control in nanofibers, with high accuracy demonstrated.

## Key findings

- Achieved polarization control accuracy >95%.
- Developed a protocol based on scattered light analysis.
- Provided explanation for reduced scattering contrast.

## Abstract

We report on a protocol to achieve full control of the polarization in a nanofiber. The protocol relies on studying the light scattered out from a nanofiber by means of two optical systems with $45^\circ$ camera angle difference. By studying the disturbance of the nanofiber on the radiation of embedded scatterers, we propose an explanation for the observed reduced scattering contrast of the nanofiber. Thanks to this approach, we demonstrate an accuracy of the polarization control larger than 95\%.