Since his arrival at Carrow Road, head coach Daniel Farke has been active in the transfer market and he has again opted to return to his homeland to add another new signing.
Franke leaves his previous club having featured on 31 occasions in Bundesliga 2 last season, and he has revealed that it was an easy decision for him to make the switch to England's second tier.
The 24-year-old told the club's official website: "It's a big club in England with a great stadium and amazing supporters.
"It was an easy step for me. I had good conversations with the coach and he convinced me Norwich was the right club. I want to play football with the team so I'm looking forward to this."