title: Dual correlated pumping scheme for phase noise preservation in all-optical wavelength conversion.
abstract: We study the effect of transfer of phase noise in different four wave mixing schemes using a coherent phase noise measurement technique. The nature of phase noise transfer from the pump to the generated wavelengths is shown to be independent of the type of phase noise (1 / f or white noise frequency components). We then propose a novel scheme using dual correlated pumps to prevent the increase in phase noise in the conjugate wavelengths. The proposed scheme is experimentally verified by the all-optical wavelength conversion of a DQPSK signal at 10.7 GBaud.
authors.affiliation: Department of Electrical Engineering, IIT Madras, Chennai - 36, India.
authors.forename: Aravind P
authors.initials: AP
authors.lastname: Anthur
authors.forename: Regan T
authors.initials: RT
authors.lastname: Watts
authors.forename: Kai
authors.initials: K
authors.lastname: Shi
authors.forename: John O'
authors.initials: JO
authors.lastname: Carroll
authors.forename: Deepa
authors.initials: D
authors.lastname: Venkitesh
authors.forename: Liam P
authors.initials: LP
authors.lastname: Barry