Title :
A 10 channel coherent optical FDM broadcasting system
Author :
Shikada, M. ; Yamazaki, S. ; Shibutani, M. ; Shimosaka, N. ; Murata, S. ; Minemura, K.
Author_Institution :
NEC Corp., Kanagawa, Japan
Abstract :
The first demonstration results of a coherent optical frequency-division-multiplexing (FDM) system with a random-access channel selection scheme for CATV distribution application are reported. Indispensable technologies for the FDM coherent transmission such as channel separation locking, random-access channel selection, and polarization diversity were developed and applied to the system. The developed system has suitable features for use as an optical digital CATV, especially for CATV distribution system applications. It is estimated from a 400-Mb/s 10-channel FDM experiment with an 8-GHz frequency separation that 64 channel HDTV signals can be distributed to more than 2000 subscribers without repeaters
Keywords :
cable television; frequency division multiplexing; high definition television; optical communication equipment; optical links; television broadcasting; 2000 subscribers; 400 Mbit/s; CATV distribution system; FDM coherent transmission; HDTV signals; channel separation locking; coherent optical FDM broadcasting system; frequency separation; frequency-division-multiplexing; high definition television; optical digital CATV; polarization diversity; random-access channel selection scheme; Broadcasting; Frequency division multiplexing; Frequency shift keying; Optical mixing; Optical modulation; Optical polarization; Optical receivers; Optical sensors; Optical transmitters; Tunable circuits and devices;
Conference_Titel :
Communications, 1989. ICC '89, BOSTONICC/89. Conference record. 'World Prosperity Through Communications', IEEE International Conference on
Conference_Location :
Boston, MA
DOI :
10.1109/ICC.1989.49739
