Loading...
conference paper
Colour simplex coding for brillouin distributed sensors
2013
Proc. SPIE 8794. Fifth European Workshop on Optical Fibre Sensors
The possibility to customize Simplex coding for long range Brillouin Optical Time Domain Analysis is demonstrated by “colouring” the sequences in the frequency domain. The coding gain is identical to the traditional intensity-modulated Simplex code, though with much simplified series of sequences. The frequency-hopping pulses in return-to-zero intensity-modulated format are generated with a Direct-Digital Synthesizer. The proof-of-concept is experimentally demonstrated with measurements over a 50 km range (100 km fibre-loop) and a 2 meter spatial resolution.
Loading...
Name
879437.pdf
Type
Publisher's version
Access type
openaccess
Size
295.07 KB
Format
Adobe PDF
Checksum (MD5)
84f19cbdf1ed5a25bf8c5f89ec5a4bec