Title :
Reduction of optical beat interference in passive optical networks using CDMA technique
Author :
Yamamoto, Fumihiko ; Sugie, Toshihiko
Author_Institution :
Access Network Service Syst. Labs., NTT, Ibaraki, Japan
Abstract :
We propose a novel technique for reducing optical beat interference in passive optical networks. The feature of our approach is the use of an electrical technique, namely, code-division multiple access. Our experiments to confirm the effectiveness of the technique revealed a 13.5-dB improvement in the bit rate of 10-Mb/s signals for a 10-km transmission compared with those of digital baseband systems without the technique.
Keywords :
code division multiple access; light interference; optical fibre networks; photodetectors; semiconductor lasers; 10 Mbit/s; 10 km; CDMA technique; code-division multiple access; digital baseband systems; electrical technique; optical beat interference; passive optical networks; Decoding; Intelligent networks; Interference; Multiaccess communication; Optical feedback; Optical fiber networks; Optical fiber polarization; Optical noise; Optical receivers; Passive optical networks;
Journal_Title :
Photonics Technology Letters, IEEE
