Simultaneo Us Multi-Wavelength Signal Co Nversio N Fo R Transparento Ptical Multicast

Abstract

Transparento ptical multicast by multi-wavelength c o nversio n has revealed a brand-new way fo r perfo rming data multicast functio n directly in theo ptical do main witho ut passing thro ugh any electro nics. In this paper, several sim ultaneo us multiple wavelength co nversio n appro aches fo r transparento ptical multi cast are discussed. Techno lo gies and metho ds fo r single-to -multiple-channel waveleng th co nversio ns are summarized and co mpared. The main fo cus iso n fo ur-wave-mixing (FWM) wavelength co nversio n technique, because it is suitable fo r high bitrates ando ffers strict transparency to any data mo dulatio n fo rmat. Cro ss-gain mo dulatio n (XGM) wavelength co nversio n has limitatio ns in these respects. Experimental results o f FWM and XGM fo ro ne-to-two - channel co nversio n are presented