DocumentCode :
1392838
Title :
Conversion gain characterisation of optical radiofrequency signal mixing by all-optical sampling based on SOA-MZI
Author :
Rampone, Thierry ; Lagrost, Alexandra ; Kabalan, A. ; Sharaiha, A.
Author_Institution :
Lab.-STICC, UEB, Brest, France
Volume :
48
Issue :
24
fYear :
2012
Firstpage :
1542
Lastpage :
1543
Abstract :
Using an optical network to transmit radiofrequency signals (radio over fibre) naturally leads to implementation functions, such as frequency mixing, directly in the optical layer. Proposed is an all-optical sampling method based on a SOA-MZI to frequency upconvert an electrical subcarrier at 1 GHz up to 38 GHz. The optical pulsed source used to sample the electrical subcarrier generates 21 ps-width pulses at a repetition rate of 7.8 GHz. Although the SOA-MZI bandwidth is limited to 7 GHz, frequency upconversions up to five times the 7.8 GHz sampling rate have been evaluated through the conversion gain. Its value lies between 14.4 to -20.3 dB depending on the frequency to be reached.
Keywords :
Mach-Zehnder interferometers; light sources; radio-over-fibre; semiconductor optical amplifiers; signal sampling; SOA-MZI; all-optical sampling method; conversion gain characterisation; frequency 1 GHz; frequency 7 GHz; frequency 7.8 GHz; frequency upconversions; optical network; optical pulsed source; optical radiofrequency signal mixing; radiofrequency signal transmission; semiconductor optical amplifier Mach-Zehnder interferometer;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2012.2354
Filename :
6400384
Link To Document :
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