Title :
Interference in CPFSK optical crossconnect systems with noncoherent detection
Author :
Brown, J.C. ; Cartledge, J.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´s Univ., Kingston, Ont.
fDate :
12/8/1994 12:00:00 AM
Abstract :
In optical crossconnect applications, as the wavelength of a transmitter laser is switched from one channel to another, it may momentarily coincide with wavelengths being used by other transmitter lasers. The resultant interference is assessed experimentally for CPFSK systems with noncoherent detection based on a Fabry-Perot optical filter. It is shown that wavelength switching causes a significant degradation in the bit error ratio performance when direct frequency modulation is used. The influence of the relative states of polarisation of the modulated and switched signals on the switching induced interference is also examined
Keywords :
digital communication; error statistics; frequency shift keying; interference (signal); laser beam applications; light polarisation; optical fibre communication; optical modulation; photonic switching systems; wavelength division multiplexing; BER performance degradation; CPFSK optical crossconnect systems; Fabry-Perot optical filter; WDM; bit error ratio; direct frequency modulation; noncoherent detection; polarisation states; switching induced interference; transmitter laser; wavelength switching;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941458
