Title :
Narrow filtered DPSK implements order-1 CAPS optical line coding
Author :
Forestieri, E. ; Prati, G.
Author_Institution :
Scuola Superiore Sant´´Anna, Pisa, Italy
Abstract :
A novel family of optical line codes has been presented elsewhere, here referred to as combined amplitude-phase shift (CAPS) codes. We show here that narrow filtering of a differential phase shift keying signal with bandwidth equal to about 2/3 of the bit rate turns out to closely implement the order-1 CAPS line coding. Performance of the two systems is compared for various types of optical filters.
Keywords :
amplitude shift keying; differential phase shift keying; optical fibre communication; optical fibre dispersion; optical filters; optical modulation; combined amplitude-phase shift; differential phase shift keying; narrow filtered DPSK; optical filters; optical line codes; order-1 CAPS line coding; Bandwidth; Bit rate; Differential phase shift keying; Differential quadrature phase shift keying; Filtering; Optical fiber communication; Optical filters; Optical interferometry; Optical modulation; Optical receivers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.822231
