DAILY POST reports that Lichtsteiner signed a short-term deal with the Emirates club on Tuesday after his contract expired with Juventus.
Emery hinted that Lichtsteiner's wise head is his most valuable asset in his statement to the club website: 'Stephan brings huge experience and leadership to our squad.
The 34-year-old defender won Serie A in each of his seven years at Juventus.
Add this to the fact he could make his 100th worldwide appearance in Switzerland's World Cup opener against Brazil, and you have a player who lives at the top level.
"Will work hard and passionately day in and day out to achieve our sportive objectives and to win trophies with this great club". Despite other, younger options in his place at right back, at 34-years of age, he still went on to manage 27-league games last season.
"A story full of unforgettable moments that I will keep in my heart forever".
He notably becomes Unai Emery's first signing after the Spaniard succeeded long-term Gunners boss Arsene Wenger last month, and the Spaniard says he is delighted with the acquisition. If you see the players, if you see the club, the stadium... it's the project, the big opportunity to get back to the highest level. "Stephan will improve us on and off the pitch", Emery said of the move.
Having started his career at Grasshopper Zurich, Lichtsteiner moved to Lille in 2005.
The 46-year-old Emery previously spent three seasons with Sevilla leading them to an unprecedented three consecutive Europa League titles and establishing the club as a major force in the Spanish League.