The 36-year-old man pleaded guilty to three counts of making child pornography and two counts of possessing child pornography.
The man admitted to recording video of the girls taking off their clothes in the washroom and in their bedroom on three occasions, and recording two bathroom and bedroom videos of a third teen.
The man would then Photoshop these images into pornographic poses.
The man was also charged in connection with a fourth victim, a girl he arrested, after he was found to have saved nude pictures of the girl he found on her phone.
The officer or the location is not being named in order to protect the identity of his victims.
A judge ordered that the man have no contact with his victims and that his name be listed on the national sex offender registry for life.