MULTICHANNEL COHERENT FSK EXPERIMENTS USING SUBCARRIER MULTIPLEXING TECHNIQUES

被引：73

作者：

GROSS, R ^{[1
]}

OLSHANSKY, R ^{[1
]}

机构：

[1] GTE LABS INC,SYST TECHNOL LAB,DEPT PHOTON TECHNIQUES,WALTHAM,MA 02254

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1990年 / 8卷 / 03期

关键词：

D O I：

10.1109/50.50737

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：

The results for coherent digital subcarrier multiplexed (SCM) lightwave system experiments are described. A total of 20 frequency-shift-keyed (FSK) channels at 100 Mbits/s each were transmitted on one optical carrier using microwave subcarriers in a mul-tioctave configuration. A complete description of the system performance, including carrier-to-noise ratio, crosstalk, intermodulation distortion, and receiver sensitivity, is given. With a phase modulation index of β = 0.13, a receiver sensitivity of -27 dBm was obtained, representing a 14-dB improvement over a 20-channel direct detection SCM system. Crosstalk due to adjacent channels is negligible with a channel spacing of twice the data rate (200 MHz). Theoretical and experimental results are compared, and conditions for optimal performance as a function of channel number and phase modulation index are discussed. © 1990 IEEE

引用

页码：406 / 415

页数：10

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