Caldwell replaced Cam Cameron when he was fired back in December.
The Ravens have been on the winning track with Caldwell in control, winning all of their playoff games and making a trip to Super Bowl XLVII.
It’s the first time the Ravens have made a Super Bowl appearance in 12 years.
Coach John Harbaugh also said former Philadelphia Eagles’ defensive coordinator Juan Castillo would be a consultant the next few weeks and will be the team’s running game coordinator next year.