Question: Genre Related

So, here’s something I’ve been thinking about, figured I’d throw it out to the readership:

In our post-Star Wars society (e.g. after 1977), in your opinion is it possible for a writer to use laser swords/plasma swords/force swords (whatever alt. name for a lightsaber you want) and not look like they’re “ripping off” Lucas?

That’s with or without a group of monastic warriors using them.