Herbed Salmon Tartare with Chips

Name: Herbed Salmon Tartare with Chips
Ingredients: 1 English cucumber—peeled, seeded and cut into 1/4-inch pieces; Fine sea salt; Pepper; 8 ounce skinless salmon fillet, finely chopped; 8 ounce skinless hot-smoked salmon fillet, finely chopped; 1/2 cup finely chopped chives; 1/2 cup finely chopped dill sprigs; 12 cornichons, finely chopped; 1 small shallot, finely chopped; 1 tablespoon fresh lemon juice; 3/4 cup crème fraîche; Potato chips or crostini, for serving