I'm very happy to sign for Fulham," the Switzerland international keeper told the club's official website.
"I've already spent three weeks with the team and we have a very good squad for the new season.
"I know the club had a very hard season last year, but I'm confident that this season it will be much, much better. I'm coming here to be successful.
"I know also the situation here with the goalkeepers. I've known Mark Schwarzer for a long time and played against him in the past.
"I know he's the number one, but I'm here to give my best so that, in the end, the team is successful."