Calculating the performance of optical CPFSK phase diversity receivers

Author

Ho, Chia-Lu ; Wang, Ja-Nan

Author_Institution

Dept. of Electr. Eng., Nat. Central Univ., Taiwan, China

Volume

13

Issue

5

fYear

1995

fDate

5/1/1995 12:00:00 AM

Firstpage

971

Lastpage

976

Abstract

Numerical method for efficiently computing the performance of continuous phase frequency shift keying (CPFSK) is presented. The receiver uses a phase diversity technique with a delay-and-multiply frequency discriminator to recover the phase of the optical signal. The moment generating function (MGF) of the discriminator is derived and used in the calculation of bit error rate (BER). The results of numerical integration show that the receiver output is far from Gaussian. Exact mean and variance are derived for the Gaussian approximation (GA). The effects of laser linewidth, filter bandwidth, and shot noise correlation are all considered

Keywords

Gaussian noise; approximation theory; frequency shift keying; light coherence; optical correlation; optical modulation; optical receivers; phase noise; shot noise; Gaussian approximation; bit error rate; continuous phase frequency shift keying; delay-and-multiply frequency discriminator; filter bandwidth; laser linewidth; moment generating function; numerical integration; numerical method; optical CPFSK phase diversity receivers; optical signal phase recovery; phase diversity technique; receiver output; shot noise correlation; Bit error rate; Delay effects; Frequency; Gaussian approximation; Laser noise; Optical filters; Optical noise; Optical receivers; Optical sensors; Optical signal processing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.387816

Filename

387816