Simplifying the error probability analysis in optical direct detection DPSK systems

Author

Pires, João J O ; Cancela, Luís G C

Author_Institution

Dept. of Electr. & Comput. Eng., Inst. de Telecomun. & Inst. Super. Tecnico, Lisbon

Volume

13

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

369

Lastpage

371

Abstract

This letter describes a rigorous formulation based on an eigenfunction expansion technique to estimate the performance of optical direct detection DSPK systems and discusses appropriate procedures to simplify the process without solving any eigenvalue problem. A great emphasis is put on an approach derived from the wide-band optical filtering assumption. The results show that this simplification is acceptable for ideal receivers with time-bandwidth products far larger than 1, but it is clearly inadequate for more realistic receivers.

Keywords

differential phase shift keying; eigenvalues and eigenfunctions; error statistics; optical communication; optical filters; optical modulation; differential phase shift keying; eigenfunction expansion technique; error probability analysis; optical direct detection DPSK systems; wideband optical filtering assumption; Differential quadrature phase shift keying; Eigenvalues and eigenfunctions; Error analysis; Error probability; Integral equations; Optical detectors; Optical filters; Optical interferometry; Optical noise; Optical receivers; Differential phase-shift keying (DPSK), optical communications, eigenvalue and eigenfunction expansion, wide-band assumption;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2009.090109

Filename

5090406