# Tailorable Dispersion in a Four-Wave Mixing Laser

## TL;DR

This paper demonstrates how to control and tune the dispersion in a four-wave mixing laser using atomic vapor and experimental parameters, enabling significant manipulation of laser frequency response.

## Contribution

It introduces a method to tailor intra-cavity dispersion in a ring laser by adjusting experimental parameters in an atomic vapor system.

## Key findings

- Tunable dispersion slope achieved in a ring laser.
- The pulling factor can be varied by over an order of magnitude.
- Experimental control over laser frequency response demonstrated.

## Abstract

We present experimental results demonstrating controllable dispersion in a ring laser by monitoring the lasing-frequency response to cavity-length variations. Pumping on an N-type level configuration in ${}^{87}$Rb, we tailor the intra-cavity dispersion slope by varying experimental parameters such as pump-laser frequency, atomic density, and pump power. As a result, we can tune the pulling factor (PF), i.e. the ratio of the laser frequency shift to the empty cavity frequency shift, of our laser by more than an order of magnitude.