title: Parity-time-symmetric coupled microring lasers operating around an exceptional point.
abstract: The behavior of a parity-time-symmetric coupled microring system is studied when operating in the vicinity of an exceptional point. Using the abrupt phase transition around this point, stable single-mode lasing is demonstrated in spectrally multimoded microring arrangements.
authors.forename: H
authors.initials: H
authors.lastname: Hodaei
authors.forename: M A
authors.initials: MA
authors.lastname: Miri
authors.forename: A U
authors.initials: AU
authors.lastname: Hassan
authors.forename: W E
authors.initials: WE
authors.lastname: Hayenga
authors.forename: M
authors.initials: M
authors.lastname: Heinrich
authors.forename: D N
authors.initials: DN
authors.lastname: Christodoulides
authors.forename: M
authors.initials: M
authors.lastname: Khajavikhan