Title :
Improved performance of subcarrier multiplexed multichannel AM-VSB video signal transmission using Pr3+-doped fluoride fibre amplifier
Author :
Yoshinaga, Hiroyuki ; Yamada, Makoto ; Shimizu, Maiko ; Kanamori, Toshiyuki
Author_Institution :
NTT Optical Network Syst. Lab., Kanagawa
fDate :
11/24/1994 12:00:00 AM
Abstract :
The performance of 40 channel AM-VSB video signal transmission using a Pr3+-doped fluoride fibre amplifier (PDFA) was examined. The PDFA improves the loss budget by 10 dB for 52 dB CNR, and distortion levels almost satisfy the CATV trunk line specifications. The video quality degradation after PDFA amplification was `imperceptible´ in subjective tests
Keywords :
amplitude modulation; barium compounds; cable television; fibre lasers; lanthanum compounds; optical fibre communication; optical fibre losses; optical modulation; praseodymium; subcarrier multiplexing; television networks; zirconium compounds; AM-VSB video signal transmission; CATV trunk line specifications; PDFA amplification; Pr3+-doped fluoride fibre amplifier; ZBLAN:Pr; ZrF4-BaF2-LaF3-AlF3-NaF:Pr; distortion levels; loss budget; subcarrier multiplexed multichannel AM-VSB video signal transmission; subjective tests; video quality degradation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941389
