Ouellette went 2-0-0 with a 1.50 goals-against average and a save percentage of .952 in two appearances last week.
The 25-year-old stopped 34 shots in a 6-2 win at Brampton on Friday and made 26 saves in a 4-1 victory at Elmira on Saturday.
A native of Saint-Hippolyte, Quebec, Ouellette is 14-11-1 in 28 appearances for the Royals this season. He is ninth in the ECHL with a 2.69 goals-against average and tied for 10th with a .911 save percentage.
Under an American Hockey League contract with Lehigh Valley, Ouellette has seen action in 88 career games with Reading with an overall record of 48-31-6 with five shutouts, a 2.55 goals-against average and a save percentage of .913. He is 9-5-0 in 18 career games with Lehigh Valley.
Prior to turning pro, Ouellette played four seasons at the University of Maine, where he appeared in 82 career games and went 28-33-14 with seven shutouts, a 2.52 goals-against average and a save percentage of .913.