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Updated: Sep 2, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Geometric phase in distributed fiber optic sensing.

Sabahat Shaheen, Konstantin Hicke

|August 1, 2022

Summary

This summary is machine-generated.

This study presents the first measurement of geometric phase in optical fiber beat signals. This breakthrough enables novel distributed fiber sensing techniques by analyzing light beam interference.

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Related Experiment Videos

Last Updated: Sep 2, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

Area of Science:

Optics and Photonics
Fiber Optic Sensing
Quantum Phase

Background:

Coherent interference of frequency-offset light beams generates beat signals containing geometric phase information.
Measuring geometric phase in optical fibers is challenging due to dynamic intensity variations.
Previous research has not reported measurements of geometric phase within a fiber optic medium.

Purpose of the Study:

To measure the geometric phase in the beat signal from coherent interference of two frequency-offset light beams.
To demonstrate a novel distributed optical fiber sensing setup for geometric phase measurement.
To explore the potential of this measurement for new sensing applications.

Main Methods:

A novel distributed optical fiber sensing setup was developed.
The setup utilized coherent interference of two frequency-offset light beams.
Experimental stimuli included a 100-Hz sinusoidal stimulus applied to a polarization scrambler and a piezoelectric transducer.

Main Results:

The geometric phase in the beat signal was successfully measured for the first time in a fiber optic medium.
Measurements were performed under conditions of changing beam intensities.
The influence of applied sinusoidal stimuli on the phase was experimentally verified.

Conclusions:

The successful measurement of geometric phase in optical fiber beat signals is a significant advancement.
The developed sensing setup shows promise for novel distributed fiber sensing techniques.
This work opens avenues for advanced optical sensing applications leveraging geometric phase.