Title :
Wavelength Conversion of High-Speed Phase and Intensity Modulated Signals Using a Highly Nonlinear Chalcogenide Glass Chip
Author :
Pelusi, M.D. ; Luan, F. ; Madden, S. ; Choi, D.Y. ; Bulla, D.A. ; Luther-Davies, B. ; Eggleton, B.J.
Author_Institution :
Centre for Ultrahigh Bandwidth Devices for Opt. Syst. (CUDOS), Univ. of Sydney, Sydney, NSW, Australia
Abstract :
We report all-optical wavelength conversion of high-speed differential phase-shift keyed (DPSK) and on-off keyed (OOK) signals using the nonlinear Kerr-effect in an optical chip. This was enabled by four-wave mixing (FWM) of the signal with a continuous-wave (CW) pump laser in a 7-cm-long dispersion-shifted planar rib waveguide in highly nonlinear As2S3 glass. Both conversion of 40-Gb/s DPSK and 160-Gb/s OOK signals by 33 and 15 nm, respectively, are shown. These are first demonstrations of signal processing by CW-pumped FWM in a chalcogenide waveguide, highlighting its capability to perform phase-preserving operations at high bit rates in chip-scale devices.
Keywords :
amplitude shift keying; chalcogenide glasses; intensity modulation; multiwave mixing; nonlinear media; optical Kerr effect; optical glass; optical modulation; optical planar waveguides; optical pumping; optical wavelength conversion; phase shift keying; rib waveguides; As2S3; DPSK; FWM; OOK; bit rate 160 Gbit/s; bit rate 40 Gbit/s; chalcogenide glass; continuous-wave pump laser; differential phase-shift keying; dispersion-shifted planar rib waveguide; four-wave mixing; intensity modulation; nonlinear Kerr effect; on-off keying; optical chip; phase modulation; size 7 cm; wavelength conversion; Optical planar waveguides; optical propagation in nonlinear media; optical signal processing; phase-shift keying;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2035094
