CPFSK COHERENT OPTICAL RECEIVERS - IMPACT OF IF BANDWIDTH AND LASER PHASE NOISE

被引：8

作者：

JACOBSEN, G ^{[1
]}

KAZOVSKY, LG ^{[1
]}

机构：

[1] BELLCORE,RED BANK,NJ 07701

来源：

ELECTRONICS LETTERS | 1988年 / 24卷 / 11期

关键词：

Frequency Modulation--Frequency Shift Keying - Lasers--Noise; Spurious Signal - Signal Interference - Signal Receivers;

D O I：

10.1049/el:19880484

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A detailed theoretical model for narrowband CPFSK receivers is presented. It accounts for the influence of IF bandwidth on the signal voltage, non-Gaussian statistics of the output noise, correlation between noise samples stemming from limited IF bandwidth, and the impact of laser phase noise. It is found that the IF bandwidth needed to avoid intersymbol interference is 2.2 times the bit rate for a modulation index of 1; it is higher for other modulation index values. The bit error ratio is within 1 dB of the shot noise limit for the modulation index of 1.

引用

页码：715 / 717

页数：3

共 6 条

[1]

GARRETT I, IN PRESS J LIGHTWAVE

[2] A 2-GBIT/S OPTICAL FSK HETERODYNE TRANSMISSION EXPERIMENT USING A 1520-NM DFB LASER TRANSMITTER [J].