# Colliding pulse mode-locked all polarization maintaining fiber gyrolaser

## TL;DR

This paper introduces a bidirectional all polarization maintaining fiber laser gyrolaser that employs intracavity phase interferometry to achieve high sensitivity in rotation sensing and other applications.

## Contribution

It presents a novel symmetric configuration of Er-doped fibers enabling a bios beat note of 166 KHz for enhanced gyroscopic sensitivity.

## Key findings

- Achieved a bios beat note of 166 KHz in the gyrolaser.
- Demonstrated applications in inertial sensing, magnetometry, and displacement measurement.
- Utilized intracavity phase interferometry for high sensitivity.

## Abstract

A bidirectional all polarization maintaining fiber laser as a highly sensitive sensor for rotation is presented. This sensor is based on intracavity phase interferometry with application in inertial sensing, magnetometry, displacements and nonlinear index. The bios beat note of this gyroscopic laser is lowered to 166 KHz implementing a symmetric configuration including two parts of Er-doped fibers.