Haydn Edmonds was found guilty of four charges on May 7 following a trial at the High Court in Edinburgh.
The 37-year-old chef targeted his victims, all former partners, in a campaign of domestic abuse, in the Edinburgh area between June 2016 and June 2019.
He caused his first victim fear or alarm by threatening to harm himself, holding a knife to his wrist, and sending her a photograph of tablets along with abusive texts.
Edmonds then raped a woman in 2016 before carrying out a serious sexual assault on another victim in 2019.
He also acted in a threatening or abusive manner that caused his victim alarm after he held a sword to his jaw while issuing threats to harm himself.
At the High Court in Edinburgh on June 7, he was given an 11-year extended sentence with a nine-year custodial term.
He was placed on the sex offenders register indefinitely.
Non-harassment orders were granted for all three victims, for an indefinite period.
Scotland’s Procurator Fiscal for High Court Sexual Offences, Katrina Parkes, said:
“Haydn Edmonds poses a clear danger to women. The offences he carried out against these vulnerable women are reprehensible.
“The bravery of his victims in reporting him to the authorities shows immense strength and courage, for which they should be commended.
“I hope this conviction brings some comfort as Edmonds now faces the consequences of his depraved behaviour.
“We urge any victim of similar offending to come forward, report it and seek help.
“You will be taken seriously, listened to, and we will use all the tools available to us to pursue justice.”