This is the first loan spell the midfielder has had at a Premier League side.
The 22-year-old has been given the chance to impress on loan at a Premier League club after previous loan spells at Leyton Orient, Derby County and Queens Park Rangers in the Football League, and made his debut in the Swans' 1-0 win over Rotherham United in the League Cup this week.
He's quoted in the South Wales Evening Post, saying: "I've had some spells lower down on loan so I feel I'm ready for this step. If I can get a bit more confidence from playing games, I think I can show I'm ready.
"As soon as I heard the name Swansea, I wanted to be here.
"They're a great club playing some of the best football in the Premier League.
"I'm really looking forward to getting involved.
"I've only been here a few days, but it's been great so far and it was good to be out there playing one and two-touch football (against Rotherham). I'm really happy with the move."
The move gives the opportunity for Carroll to show he is a player of Premier League quality. Though many will think highly of him from his loan moves to other clubs, they haven't been at the highest level. But the opportunity to play regularly at a Premier League side could allow both Swansea boss Garry Monk to think about whether he would like to keep the midfielder at the club - if the opportunity should arise.
No doubt Tottenham boss Mauricio Pochettino will be keeping a close eye on the progress of Carroll, and may consider him in his plans for the future. An impressive spell at the Liberty Stadium this season could open many options up for the young midfield player.