Yes you can, using the Export/Import catalog routine:
1. Right-click on the collection that you want to copy to another catalog, and select "Export this Collection as a Catalog".
2. In the resulting dialog, provide a name and location for this interim exported catalog. Then check the "Include available previews", and check/uncheck the smart previews option as you prefer. Regarding the "Export negative files" option, that depends on where the other catalog (the one you are copying the collection to) resides....if it's on the same system, no need to check that option. But if the other catalog is on a different system with no access to the original files (the "negatives"), then you should check that box. When you've made the selections click on Export catalog.
3. If the other catalog is on the same system, open the other catalog after doing the export, then select File>Import from Another Catalog, select the interim exported catalog and it should then import the collection.
4. If the catalog is on another system, the export as catalog will have created a master folder containing the exported catalog and associated previews, plus a sub-folder containing the copy of all the associated original files. Copy this master folder to the other system, open the other catalog and go through the same "Import from Another Catalog" process. This time you'll have an additional option relating to the original files, i.e. you can move them to another place on the other system or leave them where they are.
Either way, it's a fairly simple process. Let us know if you run into any trouble and need some more help.