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Laser²: A two-domain photon-phonon laser.

Ning Wang¹, He Wen¹, Juan Carlos Alvarado Zacarias¹

¹CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, 32816, USA.

Science Advances

|June 30, 2023

Summary

Researchers achieved simultaneous photon and phonon lasing, a novel two-domain laser. This breakthrough, using stimulated Brillouin scattering, opens doors for advanced optomechanical and quantum technologies.

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Area of Science:

Optics
Acoustics
Materials Science

Background:

The laser, a historically significant invention, has seen its principles extended to other physical domains like phonon and atom lasers.
Existing lasers operate within a single physical domain, despite energy transfer between domains being common.

Purpose of the Study:

To experimentally demonstrate simultaneous lasing in two distinct physical domains (photons and phonons).
To explore the potential of a novel two-domain laser for future technological applications.

Main Methods:

Utilizing a two-mode silica fiber ring cavity.
Employing forward intermodal stimulated Brillouin scattering (SBS).
Leveraging long-lived flexural acoustic waves to mediate the process.

Main Results:

Successful experimental demonstration of simultaneous photon and phonon lasing.
The two-domain laser operates within a single fiber ring cavity.

Conclusions:

This work presents the first experimental realization of a simultaneous two-domain laser.
The demonstrated technology may enable advancements in optical/acoustic tweezers, optomechanical sensing, microwave generation, and quantum information processing.
This paves the way for the development of other multidomain lasers and associated applications.