Depends on how you are exporting the Alembic file. For instance, when exporting to Alembic from Maya, you have a choice of exporting all animation including camera, or exporting just selected items.
If you are exporting FBX from Blender you have a lot of choices on what elements to export from Blender, or import into whatever app you are using for conversion to Alembic.
I'm not sure how useful just camera data would be in Octane stand alone though without the objects you originally used to animate that camera with. I did a test where I just animated a camera using a simple box in Blender. I exported only the camera data into Maya, and from Maya generated an Alembic file. I brought the Alembic file containing the camera information into an Octane scene node and then imported a completely different obj into a mesh node.
While the camera movements were all there from the Alembic file, there was no easy way to position my object as anytime I adjusted the camera it reverted back to its default positions when the animation was run. I suspect one would then have to position the object itself to match the camera movements and that seems kind of awkward.
FYI - an Alembic exporter for Blender is currently being developed. You can read about that from the following thread:
http://www.elysiun.com/forum/showthread ... in-Blender