title: Polarization-insensitive, 40 Gb/s wavelength and RZ-OOK-to-RZ-BPSK modulation format conversion by XPM in a highly nonlinear PCF.
abstract: Polarization-insensitive wavelength conversion, as well as the conversion of return-to-zero (RZ) ON-OFF keying (RZ-OOK) to RZ binary phase-shift keying (RZ-BPSK), has been simultaneously achieved at 40 Gb/s for the first time by cross-phase modulation (XPM) in a highly birefringent, nonlinear photonic crystal fiber (PCF). A 10-9-BER receiver sensitivity conversion penalty of < 3 dB was achieved for a polarization scrambled, 40 Gb/s 25%-RZ-OOK pump, when the 40 Gb/s RZ probe was launched at 45 degrees with respect to the birefringence axes of the PCF and when the pump-probe detuning was greater than about 6 nm.
authors.affiliation: The Laboratory for Physical Sciences (LPS), 8050 Greenmead Drive, College Park, MD 20740, USA. notilos@lps.umd.edu
authors.forename: W
authors.initials: W
authors.lastname: Astar
authors.forename: C-C
authors.initials: CC
authors.lastname: Wei
authors.forename: Y-J
authors.initials: YJ
authors.lastname: Chen
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.forename: G M
authors.initials: GM
authors.lastname: Carter
mesh_terms: D001718:Birefringence; D003460:Crystallization / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D017711:Nonlinear Dynamics; D012031:Refractometry / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*