NEW YORK, Jan 11 (Reuters) - Turkey is committed to achieving disinflation, central bank chief Hafize Gaye Erkan told investors on Thursday while anticipating the completion of the monetary policy tightening cycle as soon as possible, two sources told Reuters.

Erkan, in New York for a day of presentations to foreign investors, said achieving disinflation is a measure of success and she is determined to achieve it, the meeting participants said.

(Reporting by Nevzat Devranoglu; writing by Rodrigo Campos; editing by Chris Reese)