Create a new PST in Outlook with File>New>Outlook Data File.  Once you have
that PST created, right-click your calendar and drag it to the new PST.
Release the mouse button and choose Copy.  When the copy completes,
right-click the new PST and choose Close.  Close Outlook.  Transfer the PST
you created to your home PC with whatever tool you have, like CD burner,
flash drive, etc.  You could even mail it to yourself if you change its file
extension from ".pst" to something else first and then rename it on the home
machine after saving it to disk.

On the home machine, put the PST on your hard drive (but don't overwrite any
exosting PST), make sure it's not read-only, then start Outlook.  Open the
PST with File>Open>Outlook Data File.  Open the Calendar folder it contains.
You can either use the calendar right where it is or you can copy the
entries in it to your default calendar.  To do that, display the added
calendar in a table iew like By Category, select all it contains with
CTRL-A, then copy the selection to the default calendar, with either
right-click-drag-and-drop>Copy or Edit>Copy to Folder.