Preselection-Free Fiber-Optic Weak Measurement Sensing Framework with High-sensitivity

TL;DR

This paper introduces a novel fiber-optic weak measurement sensing framework that eliminates the need for preselection, significantly enhancing sensitivity and outperforming traditional fiber sensing methods.

Contribution

It proposes a preselection-free scheme that optimizes post-selection for high sensitivity in fiber-optic weak measurements, verified through experimental validation.

Findings

Sensitivity increased by 2-3 orders of magnitude

Achieved high sensitivity without preselection

Experimental validation confirms theoretical improvements

Abstract

A preselection-free fiber-optic weak measurement sensing framework is proposed and experimentally verified in this paper. In view of the limitation that fiber-optic weak measurement require specific preselection, this scheme innovates theoretically and achieves high sensitivity sensing by optimizing the post-selection when single-mode optical fiber is used to generate random polarization state. The experimental results show that the sensing performance is two to three orders of magnitude higher than that of traditional optical fiber sensing technology.