The 25-year-old Irishman committed himself to the club until 2017 by penning fresh terms at Parkhead on Tuesday.
Stokes now hopes that settling his future will allow him to improve his form during the rest of the campaign.
"I'm absolutely delighted and I'm just looking forward to the next few seasons," he told the club's official website. "I'm just glad to get it out of the way and I can concentrate on my football.
"I've been happy enough with the way it's gone for me this season. I'd have liked a few more goals by now but that'll come.
"Overall, I've been delighted. I'm enjoying my football and I'm hoping this just helps me kick on."
Stokes joined Celtic from Hibernian in 2010.