Title :
35 AM-VSB TV channels distribution with high signal quality using a 1480 nm diode-pumped erbium-doped fiber postamplifier
Author :
Gabla, P.M. ; Lemaire, V. ; Krimmel, H. ; Otterbach, J. ; Augé, J. ; Dursin, A.
Author_Institution :
Alcatel-CIT, La Ville du Bois, France
Abstract :
In the system considered, the postamplifier, with an output power of +9.6 dBm, did not degrade the very high linearity of the isolated distributed-feedback (DFB) laser transmitter. A 51.2-dB weighted signal-to-noise ratio was obtained, and an optical power budget of 16 dB was achieved with a weighted signal-to-noise ratio higher than 48 dB. A larger power budget with a higher signal-to-noise ratio (SNR) is possible with an increase of DFB laser output power and erbium-doped fiber amplifier (EDFA) saturated output power, and with a minimization of the EDFA noise contribution.<>
Keywords :
cable television; erbium; fibre lasers; optical links; telecommunication channels; video signals; 1480 nm; 35 AM-VSB TV channels distribution; diode pumped Er doped fibre postamplifier; high signal quality; isolated DFB laser transmitter; noise contribution; optical power budget; output power; saturated output power; very high linearity; weighted signal-to-noise ratio; Degradation; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Linearity; Optical transmitters; Power amplifiers; Power generation; Power lasers; Signal to noise ratio; TV;
Journal_Title :
Photonics Technology Letters, IEEE
