DocumentCode
1557249
Title
Optical 4-ary FSK modulation and demodulation experiment
Author
Nakanishi, Kensuke ; Iwashita, Katsushi ; Nakao, Masahiro
Author_Institution
NTT Labs., Kanagawa
Volume
24
Issue
21
fYear
1988
fDate
10/13/1988 12:00:00 AM
Firstpage
1310
Lastpage
1311
Abstract
Experimental results of the new 4-ary FSK modulation and demodulation systems are reported. Two binary signals are directly injected into different electrodes of a 3-electrode DFB-LD, producing an optical 4-ary FSK signal with 1 GHz frequency spacing. For demodulation, two differential detectors convert the 4-ary FSK signal into two binary signals
Keywords
distributed feedback lasers; frequency shift keying; optical modulation; semiconductor junction lasers; DFB-LD; FSK; binary signals; demodulation; differential detectors; electrodes; frequency spacing; modulation; optical 4-ary FSK signal;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
Filename
5890
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