Fish, of Russell Road, Kilnhurst, pleaded guilty to two sexual offences and was found guilty of rape and a count of unlawful wounding.
He was found not guilty of two counts of rape.
The NCA’s Stuart Cobb said officers gathered evidence “which corroborated the victim’s account of Fish’s brutal and degrading crimes against her”.
Jeanette Smith, specialist prosecutor for the CPS, said the victim had suffered a “cruel campaign of abuse and violence”.
“The way he used threats and violence to then control the victim and enforce his demands for sex was completely despicable,” she added.
