Title :
Optimum frequency deviation for noncoherent CPFSK receivers using narrow-bandwidth optical filters
Author :
Nowell, M.C. ; Cartledge, J.C.
Author_Institution :
Dept. of Electr. Eng., Queen´s Univ., Kingston, Ont., Canada
Abstract :
For CPFSK lightwave systems with noncoherent detection using a Fabry-Perot filter, the optimum frequency deviation is determined experimentally when the EFM response is nonuniform, as for a single-electrode DFB laser, and the filter bandwidth is narrow. Owing to the passband response of the optical filter, the optimum frequency deviation is considerably larger than that for a heterodyne receiver.
Keywords :
frequency shift keying; optical communication; optical filters; receivers; CPFSK lightwave systems; Fabry-Perot filter; continuous phase PSK; narrow-bandwidth optical filters; noncoherent CPFSK receivers; noncoherent detection; optimum frequency deviation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920297
