The Gunners completed a swoop to sign the Switzerland international on a free transfer from Serie A champions Juventus on Tuesday evening.
Lichtsteiner will bolster Unai Emery’s options at the back after Spain international Hector Bellerin struggled to maintain his consistency last term.
The Swiss captain won seven Serie A titles, four Coppa Italia crowns and the Italian Super Cup during his decorated spell at the Italian giants.
The 34-year-old netted 15 times in 257 appearances during seven seasons at the Turin club following his move from Lazio in 2011.
Arsenal have often been accused of lacking leaders in their team in the latter years under former manager Arsene Wenger.
However, Lichtsteiner has plans to become a voice in the Gunners dressing room under new boss Unai Emery.
“At the end it’s not too important to speak too much,” Lichtsteiner told Arsenal’s website.
“The important thing is what you do on the pitch, that you are an example for the young players, for the old players, that everybody knows that this guy will help us.
“Like me also, I need to know that everybody helps me. This is the team spirit that we need to have, to have the confidence to give each other to help us.”
Lichtsteiner spent spells at Swiss side Grasshopper, French club Lille and Serie A giants Lazio before his move to Lazio.
The Swiss side won the Coppa Italia and the Italian Super Cup at the Eagles before his move to Juventus.
Arsenal finished in sixth spot in the Premier League table last term to miss out on a Champions League spot.
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