"We are very happy with the game. The conditions were good, it was a nice stadium with plenty of supporters, and an entertaining game between two famous clubs. It was a great day for rugby," said Laussucq.
"We were very happy with the performance.
"We played with skill and speed and put them under pressure.
"Our defence was good and we secured the turnovers and we were very successful in making the most of those chances."
It is the third year in a row Stade have reached the last four of the tournament and they will now face Perpignan for a place in next month's final in Dublin.
"It is wonderful to win any big game in Europe and now we must do so again at Perpignan if we are to reach the final," added Laussucq.