title: Simultaneous wavelength conversion of ASK and DPSK signals based on four-wave-mixing in dispersion engineered silicon waveguides.
abstract: We experimentally demonstrate four-wave-mixing (FWM)-based continuous wavelength conversion of optical differential-phase-shift-keyed (DPSK) signals with large wavelength conversion ranges as well as simultaneous wavelength conversion of dual-wavelength channels with mixed modulation formats in 1.1-cm-long dispersion-engineered silicon waveguides. We first validate up to 100-nm wavelength conversion range for 10-Gb/s DPSK signals, showcasing the capability to perform phase-preserving operations at high bit rates in chip-scale devices over wide conversion ranges. We further validate the wavelength conversion of dual-wavelength channels modulated with 10-Gb/s packetized phase-shift-keyed (PSK) and amplitude-shift-keyed (ASK) signals; demonstrate simultaneous operation on multiple channels with mixed formats in chip-scale devices. For both configurations, we measure the spectral and temporal responses and evaluate the performances using bit-error-rate (BER) measurements.
authors.affiliation: Department of Electrical Engineering, Columbia University, New York, NY 10027, USA. lx2140@columbia.edu
authors.forename: Lin
authors.initials: L
authors.lastname: Xu
authors.forename: Noam
authors.initials: N
authors.lastname: Ophir
authors.forename: Michael
authors.initials: M
authors.lastname: Menard
authors.forename: Ryan Kin Wah
authors.initials: RK
authors.lastname: Lau
authors.forename: Amy C
authors.initials: AC
authors.lastname: Turner-Foster
authors.forename: Mark A
authors.initials: MA
authors.lastname: Foster
authors.forename: Michal
authors.initials: M
authors.lastname: Lipson
authors.forename: Alexander L
authors.initials: AL
authors.lastname: Gaeta
authors.forename: Keren
authors.initials: K
authors.lastname: Bergman
mesh_terms: D004867:Equipment Design; D017711:Nonlinear Dynamics; D055096:Optical Devices; D055095:Optics and Photonics / Q000295:instrumentation* / Q000379:methods; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012825:Silicon / Q000737:chemistry*; D013685:Telecommunications / Q000295:instrumentation*
chemical_list: D012825:Silicon