Title :
Reduction of optical beat interference in a subcarrier multiple-access passive optical network through the use of an amplified light-emitting diode
Author :
Feldman, R.D. ; Liou, K.Y. ; Raybon, G. ; Austin, R.F.
Author_Institution :
Crawford Hill Lab., AT&T Bell Labs., Holmdel, NJ, USA
Abstract :
We show that a transmitter consisting of a light-emitting diode (LED) followed by a semiconductor amplifier can be used to transmit data in a subcarrier multiple access system for fiber-in-the-loop. Optical beat interference penalties, which have been observed when conventional laser transmitters are used, were eliminated with the amplified LED. Penalty-free system operation is observed when a signal is transmitted with 17 dB less optical power than each of two interfering transmitters.
Keywords :
light emitting diodes; multi-access systems; optical fibre subscriber loops; optical fibres; optical transmitters; semiconductor lasers; subcarrier multiplexing; LED; amplified LED; amplified light-emitting diode; fiber-in-the-loop; interfering transmitters; laser transmitters; light-emitting diode; optical beat interference penalties; optical beat interference reduction; optical power; penalty-free system operation; semiconductor amplifier; subcarrier multiple access system; subcarrier multiple-access passive optical network; transmitter; Interference elimination; Light emitting diodes; Multiple access interference; Optical fiber amplifiers; Optical fiber networks; Optical fiber subscriber loops; Optical transmitters; Passive optical networks; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
