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An optical modulation method to suppress stimulated Brillouin scattering and the phase noise in a remote interferometric fiber sensing system.
- Source :
-
Optical Fiber Technology . Oct2014, Vol. 20 Issue 5, p547-551. 5p. - Publication Year :
- 2014
-
Abstract
- A novel optical modulation method for stimulated Brillouin scattering (SBS) and the phase noise suppression in a remote interferometric fiber sensing system is proposed. Compared to the conventional phase modulation method to suppress SBS with only one phase modulation signal, another phase modulation signal with π shift is applied at the output end of the fiber, which converts the generated multi-frequency light to single-frequency light. Therefore the method can suppress not only SBS but also the phase noise induced by linewidth broadening owing to the first phase modulation. As a result, the method can keep the system a low phase noise level with a higher input power, which overcomes the conventional drawback of linewidth broadening. The results show a good reference to the design of remote interferometric fiber sensing systems. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10685200
- Volume :
- 20
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Optical Fiber Technology
- Publication Type :
- Academic Journal
- Accession number :
- 97448729
- Full Text :
- https://doi.org/10.1016/j.yofte.2014.06.008