Josiah Blackplume, 22, admitted to sexually assaulting a 26-year-old woman in a University of Saskatchewan parking lot May 23, and to robbing a female jogger on the Meewasin Trail two weeks before.
Blackplume apologized Friday to his victims.
His wife, who travels into the city for classes at the university, reported her husband to police after seeing a security camera photo of him in her student email account.
During his trial, Blackplume said has overwhelming urges when women smile at him and often mistakes it as a willingness to have sex.
Defence lawyer Deb Hopkins said Blackplume is not addicted to drugs or alcohol and is a talented musician who was sexually abused as a child and struggles with schizophrenia.
Judge Rosemary Weisgerber said she believed Blackplume's apology was sincere but said his actions affected the community at large.
"There is no question you're a deeply troubled man," Weisgerber said, citing attempted suicides, fetal-alcohol syndrome, schizophrenia and sexual abuse as a child.