A man who shook his two-month-old daughter to death could be released from a NSW jail in a little over two years.
The 36-year-old father, who cannot be named for legal reasons, was sentenced on Friday to eight years' jail with a minimum of five years after pleading guilty to the November 2015 manslaughter of the infant girl, referred to as Liana.
NSW Supreme Court Justice Lucy McCallum accepted he was completely remorseful for inflicting a catastrophic brain injury on the crying baby as he tried to settle her.
She also couldn't be satisfied the man, who had a troubled upbringing until his migration to Australia in 2013, fully understood the consequences in the "loss of control in challenging circumstances".
But a non-parole period of about three years to enable his immediate release from custody, as per his counsel's request, would "not be adequate" punishment, Justice McCallum said.
As Liana's mother went to the kitchen to prepare another bottle, the father tried to stopped the girl crying.
"Suddenly, the mother heard Liana crying from the throat, saying it was deep, loud and unusual," Justice McCallum said.
Then it stopped, she said.
The mother ran back to the lounge room to find the father with a shocked look on his face and a limp baby in his arms.
Liana's mother told a sentence hearing she felt "guilty that I left her that time with him".
"Why didn't the kettle boil faster?
"Why did I need to wash the bottle?
"He took my baby, he took my health, my hope, my last chance."
The couple met at church in Australia after both coming to the country independently as asylum seekers from Iran more than five years ago.