Can Multiple Laser Beams Be Combined into a Single Powerful Beam?

[CosmicVoyager]

Greetings,

Is there a way to combine multiple lasers beams to create a more powerful beam?

If so, what optics are needed? How do they need to be arranged?

Thanks

 

[russ_watters]

A convex lens aught to do it.

 

[Dr Lots-o'watts]

You can use a divergent lens if you need them to be parallel. Beams coming in obliquely can come out parallel if their incident angles is well tuned.

 

[r_tea]

Also a polarizing beam splitter (with the right waveplates if you want max power out of one of the outputs). If you're going to use lenses don't forget to use achromatic lenses if the wavelengths of the beams are very different.