Abstract
Hybrid fiber/coax (HFC) networks that combine analog lightwave feeder technology and low-cost and broadband coaxial cables are presently very popular systems for broadband access applications.1-2 Conventional HFC networks were designed primarily for distributed broadcast services. Two-way capability is achieved using diplexers and separate upstream amplifiers to pre-provision the traditional upstream frequency band of 5-40 MHz. However, this small upstream bandwidth, and potential channel impairment caused by ingress noise in that band, limit services that can be provided. Also, although aggressive system design has shown that 1-GHz total system bandwidth is possible, in practice this is limited by coax amplifiers (550 MHz or 750 MHz).
© 1996 Optical Society of America
PDF ArticleMore Like This
K. C. Reichmann, T. E. Darcie, and G. E. Bodeep
WI4 Optical Fiber Communication Conference (OFC) 1996
Charles A. Eldering, Floyd M. Gardner, Nageen Himayat, and Edwin L. Dickinson
TuK3 Optical Fiber Communication Conference (OFC) 1995
Stuart S. Wagner
TuK1 Optical Fiber Communication Conference (OFC) 1995