Performance analysis on transmission of M-QAM HDTV signals in FTTF network with EDFA

Author

Wu, Jiunn-Shyen ; Wu, Jingshown ; Tsao, Hen-Wai

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

41

Issue

3

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

484

Lastpage

490

Abstract

Transmission of 60 channels M-QAM HDTV signals in the CATV fiber-to-the-feeder (FTTF) network is investigated. The authors consider the 1550 nm system with the Er-doped fiber amplifiers (EDFA). They analyze the system performance by considering all noise terms, and nonlinear distortions from laser, fiber dispersion, EDFA gain tilt and chirping. The results show there exists the optimal optical modulation index for achieving the maximum fiber span under the required bit error rate. The 1550 nm system with EDFAs shows its benefits for the distribution of M-QAM HDTV signals in CATV networks. Using one DFB laser with 5 dBm output and one EDFA with 15 dBm saturation output power shared among 10 feeders, the maximum fiber span can be 32 km for 256-QAM signals and 58 km for 64-QAM signals

Keywords

cable television; chirp modulation; distributed feedback lasers; erbium; fibre lasers; high definition television; laser beams; optical fibre dispersion; optical fibre subscriber loops; optical modulation; quadrature amplitude modulation; video signals; 1.55 mum; 256-QAM signals; 32 km; 58 km; 64-QAM signals; CATV; EDFA; Er-doped fiber amplifiers; FTTF network; M-QAM HDTV signals; bit error rate; chirping; fiber dispersion; fiber-to-the-feeder; gain tilt; maximum fiber span; noise terms; nonlinear distortions; optimal optical modulation index; performance analysis; saturation output power; Chirp; Erbium-doped fiber amplifier; Fiber lasers; HDTV; Laser noise; Nonlinear distortion; Optical noise; Performance analysis; Performance gain; System performance;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.468041

Filename

468041