It was the first visit by a US Pentagon chief to the French flagship aircraft carrier, which is at the heart of a stepped-up air campaign against the jihadists in Syria and Iraq.
Carter, who visited Afghanistan yesterday and will fly to Moscow tomorrow for talks on Syria, was greeted on the deck by France's junior minister for veterans, Jean-Marc Todeschini.
His French counterpart, Jean-Yves Le Drian, was unable to be there but the two spoke by phone during the visit, the ministry said.
But the carrier was only deployed last month after President Francois Hollande declared "war" on IS following the November 13 jihadist attacks on Paris which killed 130 people.
Initially deployed to the eastern Mediterranean, the vessel - which has 26 fighter jets - moved to the Gulf earlier this month to relieve a US carrier, and it will be joined in January by the first of a new generation of frigates.
