Photonic Gateway : Multiplexing Format Conversations of OCDM-to-WDM and WDM-to-OCDM at 40 Gb/s (4 x 10 Gb/s)

Title : Photonic Gateway : Multiplexing Format Conversations of OCDM-to-WDM and WDM-to-OCDM at 40 Gb/s (4 x 10 Gb/s)
Author : Hideyuki Sotobayshi, Wataru Chujo, and Ken-ichi Kitayama
Journal : IEEE J. Lightwave Technol., vol.20, No.12, pp.2022-2027, December 2002.
Abstract : Photonic gateway, which performs the bilateral conversion and reconversion of muliplexing format, is proposed. 40-Gb/s (4 x 10 Gb/s) optical code-division multiplexing (OCDM)-to-wavelength- division multiplexing (WDM) conversion and WDM-to-OCDM reconversion are experimentally deomnstrated for the first time. The experimental scheme is based upon ultrafast photonic processing both in the time domain and frequency domain, namely, optical encodeing/decoding along with optical time-gating in the time domain and supercontinuum generation followed by spectrum slicing in the frequency domain. Thus, the possibility of ultra-high-speed operation features this photonic conversion scheme in the future photonic networks.
Key words : Code-division multiplexing, network code, nonlinear optics, photonic network, photonic processing, wavelength-division multiplexing