title: Binary phase-shift keying by coupling modulation of microrings.
abstract: We propose a coupling-modulated microring in an add-drop configuration for binary phase-shift keying (BPSK), where data is encoded as 0 and π radian phase-shifts on the optical carrier. The device uses the π radian phase-flip across the zero coupling point in a 2 × 2 Mach-Zehnder interferometer coupler to produce the modulation. The coupling-modulated microring combines the drive power reduction of resonant modulators with the digital phase response of Mach-Zehnder BPSK modulators. A proof-of-concept device was demonstrated in silicon-on-insulator, showing differential binary phase-shift keying operation at 5 and 10 Gb/s.
authors.forename: Wesley D
authors.initials: WD
authors.lastname: Sacher
authors.forename: William M J
authors.initials: WM
authors.lastname: Green
authors.forename: Douglas M
authors.initials: DM
authors.lastname: Gill
authors.forename: Solomon
authors.initials: S
authors.lastname: Assefa
authors.forename: Tymon
authors.initials: T
authors.lastname: Barwicz
authors.forename: Marwan
authors.initials: M
authors.lastname: Khater
authors.forename: Edward
authors.initials: E
authors.lastname: Kiewra
authors.forename: Carol
authors.initials: C
authors.lastname: Reinholm
authors.forename: Steven M
authors.initials: SM
authors.lastname: Shank
authors.forename: Yurii A
authors.initials: YA
authors.lastname: Vlasov
authors.forename: Joyce K S
authors.initials: JK
authors.lastname: Poon