Title :
Multichannel DPSK coherent optical communication systems
Author :
Cheng, Y.H. ; Okoshi, Tadashi
Author_Institution :
Res. Center for Adv. Sci. & Technol., Tokyo Univ., Japan
Abstract :
An accurate theoretical analysis of multichannel DPSK coherent optical communication system is presented for the first time. The analysis accounts for the crosstalk caused by an adjacent channel and for the influence of laser phase noise. It is found that the electrical domain channel spacing can be as small as 2.3 times the bit rate for a 1 dB penalty.
Keywords :
channel capacity; crosstalk; frequency division multiplexing; information theory; optical communication; phase shift keying; FDM; WDM; coherent optical fibre communication systems; crosstalk; electrical domain channel spacing; laser phase noise; multichannel DPSK coherent optical communication system; theoretical analysis; transmission capacity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900886
