Froch will be aiming to end the southpaw's run of 30 straight victories will the help of his home town fans in Nottingham on May 26.
The 34-year-old fights on home soil for the first time in three years after losing his WBC title to WBA champion Andre Ward in the final of the Super Six series in December.
"I have to beat Lucian on May 26 - losing in front of my own fans is just something I cannot contemplate," said Froch.
"They have travelled thousands of miles to watch me during the Super Six, and now they have a massive world title fight on their doorstep as a thank you - but it has to be a party and the only way it will be is if I keep the title here."
"There's nothing like the Capital FM Arena when it is full. I was there on Monday night when it was empty and cold, and I just thought that in two weeks' time this will be packed and the roof is going to come off.
"I know Lucian gets great support in Montreal but I don't think it compares to mine. They are quiet and study the fight as it goes along, politely clapping when he wins.
"My lot put all their energy behind every punch I throw and chant Forest songs all the way. Really, they support me how I know I have to box him - non-stop for as long as it takes until the title is mine."