Multilevel differential polarization shift keying

Author

Blaikie, Richard J. ; Taylor, Desmond P. ; Gough, Peter T.

Author_Institution

Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch, New Zealand

Volume

45

Issue

1

fYear

1997

fDate

1/1/1997 12:00:00 AM

Firstpage

95

Lastpage

102

Abstract

We analyze the performance of coherent optical communication systems which employ polarization shift keying (PolSK) modulation, introducing for the first time the requirements for multilevel, differential PolSK. For M-ary signal constellations with M>2, the three-dimensional (3-D) nature of the signal constellations within Stokes space requires the use of double-differential modulation and detection (M-DDPolSK). Coding constraints on the signals place an additional restriction on such systems. We present detailed analysis and simulations for a 6-DDPolSK modulation scheme in which the signal points are located at the vertices of an octahedron in Stokes space

Keywords

differential phase shift keying; encoding; light polarisation; optical communication; optical modulation; optical signal detection; 3D signal constellations; 6-DDPolSK modulation; M-ary signal constellations; Stokes space; coding constraints; coherent optical communication systems; double-differential detection; double-differential modulation; multilevel differential polarization shift keying; octahedron; signal points; simulations; system performance; vertices; Amplitude modulation; Bandwidth; Constellation diagram; Optical fiber communication; Optical fiber polarization; Optical polarization; Optical receivers; Performance analysis; Phase modulation; Polarization shift keying;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.554291

Filename

554291