Laser beams have gravity and can warp the fabric of the universe

Even though laser beams have no mass, they do have a tiny amount of gravity, which allows them to drag and warp space and slow down time as they propagate

Galaxy-Sized” Observatory Sees Hints of a Unique Signal From Gravitational Waves That Warp the Fabric of Space and Time Itself

Breaking the Warp Barrier for Faster-Than-Light Travel: New Theoretical Hyper-Fast Solitons Discovered

If space-time is a fabric, what is on the other side? - Quora

Space laser to detect ripples in fabric of the universe - CNET

What Might Cause Gravity To Exist?

Introduction to general relativity - Wikipedia

One of Earth's most powerful observatories could detect warp drives

Gravitational waves discovered—top scientists respond

Image, Massive Bodies Warp Space-Time, LIGO Lab