Title :
Studies on semiconductor optical amplifiers for line capacity expansion in photonic space-division switching system
Author :
Fujiwara, Masahiko ; Nishimoto, Hiroshi ; Kajitani, Toshikazu ; Itoh, Masataka ; Suzuki, Shuji
Author_Institution :
NEC Corp., Kawasaki, Japan
fDate :
2/1/1991 12:00:00 AM
Abstract :
The problems associated with introducing traveling wave amplifiers (TWAs) to photonic space-division (SD) switching systems are examined. Experiments were carried out to clarify the TWA noise effect and interference between cascaded TWAs, using about 10-dB gain TWA modules. Possibility of a 128-line photonic SD switching system, using current polarization-independent LiNbO3 8×8 switch matrices, has been shown through the experiments. The possible line capacity value of the photonic SD switching system with TWAs is examined theoretically. It is shown that the expected line capacity value for such a switching system exceeds 103
Keywords :
integrated optics; lithium compounds; optical communication equipment; optical switches; random noise; semiconductor junction lasers; 10 dB; LiNbO3; TWA noise effect; cascaded TWA interference; diode laser; line capacity expansion; photonic space-division switching system; polarization-independent LiNbO3 8×8 switch matrices; semiconductor optical amplifiers; traveling wave amplifiers; Laboratories; National electric code; Optical crosstalk; Optical losses; Optical receivers; Optical switches; Optical transmitters; Semiconductor optical amplifiers; Stimulated emission; Switching systems;
Journal_Title :
Lightwave Technology, Journal of
