Title :
Demonstration of simultaneous FDM signal switching by polarization-controlled switch for survivable fiber networks
Author :
Kaysuyama, Y. ; Satake, Toshiaki ; Fukasaku, Yoshito ; Yoshizawa, Tetsuo
Author_Institution :
NTT Opto-electron Lab., Ibaraki, Japan
Abstract :
A polarization-controlled switch is proposed for survivable fiber network construction to retain high survivability in case of fiber failure. The switching performance was demonstrated for FSK modulated FDM signals. The FDM signals were switched simultaneously and no degradation was observed in the bit-error-rate performance. The switch has an almost constant loss and crosstalk better than 20 dB in the 1.51-1.59 mu m wavelength range, which is much wider than that of the gain spectrum of the Er/sup 3+/-doped optical amplifier.<>
Keywords :
frequency division multiplexing; frequency shift keying; light polarisation; multiplexing equipment; optical communication equipment; optical modulation; optical switches; reliability; 1.51 to 1.59 micron; FSK modulated FDM signals; bit-error-rate performance; constant loss; crosstalk; fiber failure; frequency division multiplexing; frequency shift keying; gain spectrum; polarization-controlled switch; simultaneous FDM signal switching; simultaneous switching; survivable fiber networks; switching performance; Degradation; Erbium; Frequency shift keying; Optical amplifiers; Optical crosstalk; Optical fiber polarization; Optical losses; Optical switches; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
